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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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11-10-2011 дата публикации

Multifunctional thick film reflective polarizer for displays

Номер: US0008035774B2
Автор: Andrew J. Ouderkirk, Timothy J. Nevitt, OUDERKIRK ANDREW J, NEVITT TIMOTHY J, OUDERKIRK ANDREW J., NEVITT TIMOTHY J.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Multilayer reflective polarizers are disclosed that utilize a thick film multilayer stack and that are suitable for use in liquid crystal display devices. The disclosed polarizers can be mechanically stiff and suitable for use as a plate or substrate for other light control films within the display. The polarizers can also include diffusing means to scatter transmitted light of the pass state, reflected light of the block state, or both.

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Номер записи: 1
16-08-2007 дата публикации

PHOSPHOR BASED ILLUMINATION SYSTEM HAVING A SHORT PASS REFLECTOR AND METHOD OF MAKING SAME

Номер: US2007189035A1
Автор: WHEATLEY JOHN A, OUDERKIRK ANDREW J, WEBER MICHAEL F, EPSTEIN KENNETH A, WATSON JAMES E, WHEATLEY JOHN A., OUDERKIRK ANDREW J., WEBER MICHAEL F., EPSTEIN KENNETH A., WATSON JAMES E.
Принадлежит:

An illumination system including a light source, a light guide including an output surface, a first interference reflector positioned between the light source and the output surface of the light guide, and emissive material positioned between the first interference reflector and the output surface of the light guide is disclosed. The light source emits light having a first optical characteristic. The first interference reflector substantially transmits light having the first optical characteristic and substantially reflects light having a second optical characteristic. The emissive material emits light having the second optical characteristic when illuminated with light having the first optical characteristic.

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Номер записи: 2
10-01-2013 дата публикации

COMPACT OPTICAL INTEGRATOR

Номер: US20130010360A1
Автор: Andrew J. Ouderkirk, Zhisheng Yun, Kim L. Tan, OUDERKIRK ANDREW J, YUN ZHISHENG, TAN KIM L, OUDERKIRK ANDREW J., TAN KIM L.
Принадлежит:

Generally, the present disclosure describes a compact optical integrator that provides an increased path length for a beam of light in a compact projection system. The increased path length can improve the uniformity of the light passing through the compact projection system, with a minimal increase in the size of the system. The light can be homogenized by mixing light entering the integrator from different regions of the input area. The compact optical integrator can be positioned in the optical path between a light source and a spatial light modulator, such as a liquid crystal display (LCD) or a digital micro-mirror (DMM) array.

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Номер записи: 3
17-09-2007 дата публикации

ILLUMINATION ASSEMBLY AND METHOD OF MAKING SAME

Номер: KR1020070093127A
Автор: OUDERKIRK ANDREW J., TRAN HUNG T., SCHULTZ JOHN C., WHEATLEY JOHN A., HOFFMAN JOSEPH A., SCHENKE KAY UWE, MEIS MICHAEL A., POJAR STEPHEN J., LEHNHARDT WOLFGANG N.
Принадлежит:

An illumination assembly including a thermally conductive substrate, a patterned conductive layer proximate a major surface of the thermally conductive substrate, a dielectric layer positioned between the patterned conductive layer and the major surface of the substrate, and at least one LED including a post that is attached to the thermally conductive substrate such that at least a portion of the post is embedded in the thermally conductive substrate is disclosed. The at least one LED can be thermally connected to the thermally conductive substrate through the post and electrically connected to the patterned conductive layer. The dielectric layer can be reflective. © KIPO & WIPO 2007 ...

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Номер записи: 4
05-04-2006 дата публикации

COLOR SHIFTING FILM

Номер: KR1020060029295A
Автор: WEBER MICHAEL F., NEVITT TIMOTHY J., MERRILL WILLIAM W., ROSCOE KELLY M., OUDERKIRK ANDREW J., WHEATLEY JOHN A., HANSON GARY B., JONZA JAMES M., BOETTCHER JEFFREY A.
Принадлежит:

Multilayer polymeric films and other optical bodies are provided which are useful in making colored mirrors and polarizers. The films are characterized by a change in color as a function of viewing angle. © KIPO & WIPO 2007 ...

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Номер записи: 5
23-08-2005 дата публикации

Optical devices using reflecting polarizing materials

Номер: US0006934082B2
Автор: Richard C. Allen, Sanford Cobb, Jr., Elisa M. Cross, Susan L. Kent, Timothy J. Nevitt, Andrew J. Ouderkirk, Ronald J. Tabar, David L. Wortman, ALLEN RICHARD C, COBB JR SANFORD, CROSS ELISA M, KENT SUSAN L, NEVITT TIMOTHY J, OUDERKIRK ANDREW J, TABAR RONALD J, WORTMAN DAVID L, ALLEN RICHARD C., COBB, JR. SANFORD, CROSS ELISA M., KENT SUSAN L., NEVITT TIMOTHY J., OUDERKIRK ANDREW J., TABAR RONALD J., WORTMAN DAVID L.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Optical devices using reflective polarizers and, in particular, diffusely reflective polarizers are provided. Many of the optical devices utilize the diffusely reflecting and specularly transmitting properties of diffusely reflecting polarizers to enhance their optical characteristics. The optical devices include a lighting system which uses a reflector formed from a diffusely reflecting polarizer attached to a specular reflector. Another optical device is a display apparatus which uses a diffusely reflecting polarizer layer in combination with a turning lens which folds shallow angle light toward a light modulating layer. Other optical devices exploit the depolarizing characteristics of a diffusely reflecting polarizer when reflecting light. Still other optical devices use diffusely reflecting polarizers to recycle light and improve display illumination.

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Номер записи: 6
28-04-2009 дата публикации

Reflective polarizers containing polymer fibers

Номер: US0007526164B2
Автор: Andrew J. Ouderkirk, Richard C. Allen, Patrick R. Fleming, Diane North, Andrew T. Ruff, Kristin L. Thunhorst, OUDERKIRK ANDREW J, ALLEN RICHARD C, FLEMING PATRICK R, NORTH DIANE, RUFF ANDREW T, THUNHORST KRISTIN L, OUDERKIRK ANDREW J., ALLEN RICHARD C., FLEMING PATRICK R., RUFF ANDREW T., THUNHORST KRISTIN L.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.

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Номер записи: 7
18-07-2006 дата публикации

Dental articles including post-formable multilayer optical films

Номер: US0007077649B2
Автор: Kathryn R. Bretscher, Sumita B. Mitra, Olester Benson, Jr., James M. Jonza, William W. Merrill, Andrew J. Ouderkirk, Michael F. Weber, Janis R. Gust, BRETSCHER KATHRYN R, MITRA SUMITA B, BENSON JR OLESTER, JONZA JAMES M, MERRILL WILLIAM W, OUDERKIRK ANDREW J, WEBER MICHAEL F, GUST JANIS R, BRETSCHER KATHRYN R., MITRA SUMITA B., BENSON, JR. OLESTER, JONZA JAMES M., MERRILL WILLIAM W., OUDERKIRK ANDREW J., WEBER MICHAEL F., GUST JANIS R.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Dental articles including at least one optical surface formed of a multilayer optical film including layers of at least one strain-induced birefringent material are disclosed. The multilayer optical films included in the dental articles is preferably post-formed into desired non-planar shapes in manners that result in some deformation of the optical stack of the multilayer optical films. A variety of dental implements can be constructed with multilayer optical film including dental mirrors, light guides for use in connection with photo-curing dental materials, and matrix bands for use in molding photo-curing dental restoratives.

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Номер записи: 8
03-04-2008 дата публикации

CHOLESTERIC LIQUID CRYSTAL OPTICAL BODIES AND METHODS OF MANUFACTURE

Номер: KR1020080030097A
Автор: OUDERKIRK ANDREW J., MUNTER JOHN D., KAMMIN MARVIN R.
Принадлежит:

An optical body can be formed using cholesteric liquid crystal materials. At least two different coating compositions containing cholesteric liquid crystal material are coated on a substrate. At least a portion of each composition is allowed to interdiffuse to generate a change in pitch along a thickness dimension of the optical body. This optical body can be used, for example, as a reflective polarizer in an optical display. © KIPO & WIPO 2008 ...

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Номер записи: 9
02-10-2007 дата публикации

UNIAXIALLY ORIENTED ARTICLE HAVING A STRUCTURED SURFACE

Номер: KR1020070097046A
Автор: MERRILL WILLIAM W., BENSON OLESTER JR., OUDERKIRK ANDREW J., BIERNATH ROLF W., KOWITZ DAVID A., BROTT ROBERT L.
Принадлежит:

A process for uniaxially stretching films (9) having a structured surface comprising a geometric feature (15) is described. The process provides a film (10) in which the cross sectional shape of the feature (16) after stretching is substantially identical to the cross sectional shape of the feature (15) prior to stretching. Structured surface articles are also described. The articles have substantially the same uniaxial orientation throughout the film, including the geometric structure. © KIPO & WIPO 2007 ...

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Номер записи: 10
27-10-2005 дата публикации

PHOSPHOR BASED LIGHT SOURCE COMPONENT AND METHOD OF MAKING

Номер: KR1020050103200A
Автор: OUDERKIRK ANDREW J., WHEATLEY JOHN A.
Принадлежит:

A method of making a light source includes the steps of forming a first optical component having a phosphor material in fixed relation to a first multilayer interference reflector, providing a second optical component having an LED capable of emitting light that excites the phosphor material, and positioning the first optical component to receive emitted light from the second optical component. © KIPO & WIPO 2007 ...

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Номер записи: 11
25-05-2001 дата публикации

LIGHTED SIGN HOUSING WITH DIFFUSIVE REFLECTIVE FILM

Номер: KR20010043085A
Автор: DEYAK FRANK L., STRAND NEAL T., AELING ELLEN O., OUDERKIRK ANDREW J., WEBER MICHAEL F.
Принадлежит:

A lighted sign housing is provided with a diffuse reflective film that is selected based on its reflectivity and luminance uniformity in order to reduce power consumption required for a given luminance while also increasing luminance uniformity. A method of using such film is also provided. © KIPO & WIPO 2007 ...

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Номер записи: 12
16-09-2010 дата публикации

COMPOSITE POLYMER FIBERS

Номер: US20100230835A1
Автор: Andrew J. Ouderkirk, Olester Benson, JR., James C. Breister, Robert L. Brott, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson, OUDERKIRK ANDREW J, BENSON JR OLESTER, BREISTER JAMES C, BROTT ROBERT L, CHOU YEUN-JONG, FLEMING PATRICK R, KOPECKY WILLIAM J, NORTH DIANE, STUMO ROGER J, THUNHORST KRISTIN L, WILSON BRUCE B, OUDERKIRK ANDREW J., BENSON, JR. OLESTER, BREISTER JAMES C., BROTT ROBERT L., FLEMING PATRICK R., KOPECKY WILLIAM J., STUMO ROGER J., THUNHORST KRISTIN L., WILSON BRUCE B.
Принадлежит: 3M Innovative Properties Company

A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured.

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Номер записи: 13
04-10-2005 дата публикации

Head-up display with polarized light source and wide-angle p-polarization reflective polarizer

Номер: US0006952312B2
Автор: Michael F. Weber, Andrew J. Ouderkirk, John A. Wheatley, Jonathan Brodd, WEBER MICHAEL F, OUDERKIRK ANDREW J, WHEATLEY JOHN A, BRODD JONATHAN, WEBER MICHAEL F., OUDERKIRK ANDREW J., WHEATLEY JOHN A.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

A head-up display includes a projection system and a window having a target area where a reflective polarizer is positioned to reflect light from the projection system to a viewing area. Light from the projection system is p-polarized and strikes exposed window surface(s) at an acute angle to reduce or eliminate multiple or "ghost" images. The acute angle is closely matched to a Brewster angle of the exposed window surface(s). The reflective polarizer includes a multilayer stack with refractive indices of individual layers chosen to reflect p-polarized light substantially more than s-polarized light over a wide angular range that includes the acute angle. The reflective polarizer also can reflect infrared light to reduce cabin heating from solar radiation.

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Номер записи: 14
20-08-2013 дата публикации

Electrically pixelated luminescent device incorporating optical elements

Номер: US0008513685B2
Автор: Nicole J. Wagner, Craig R. Schardt, Catherine A. Leatherdale, Andrew J. Ouderkirk, WAGNER NICOLE J, SCHARDT CRAIG R, LEATHERDALE CATHERINE A, OUDERKIRK ANDREW J, WAGNER NICOLE J., SCHARDT CRAIG R., LEATHERDALE CATHERINE A., OUDERKIRK ANDREW J.
Принадлежит: 3M Innovative Properties Company, WAGNER NICOLE J, SCHARDT CRAIG R, LEATHERDALE CATHERINE A, OUDERKIRK ANDREW J, 3M INNOVATIVE PROPERTIES CO, WAGNER NICOLE J., SCHARDT CRAIG R., LEATHERDALE CATHERINE A., OUDERKIRK ANDREW J., 3M INNOVATIVE PROPERTIES COMPANY

Electrically pixelated luminescent devices incorporating optical elements, methods for forming electrically pixelated luminescent devices incorporating optical elements, and systems including electrically pixelated luminescent devices incorporating optical elements are described.

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Номер записи: 15
31-03-2010 дата публикации

Optically transmissive composite film frame

Номер: CN0101688997A
Автор: THUNHORST KRISTIN L., WHEATLEY JOHN A., HART SHANDON D., SOUSA MATTHEW E., OUDERKIRK ANDREW J., JOHNSON ERIK J., ESCH JAY A., ROLAND NICHOLAS G., HENDERSON ANDREW J., THUNHORST KRISTIN L, WHEATLEY JOHN A, HART SHANDON D, SOUSA MATTHEW E, OUDERKIRK ANDREW J, JOHNSON ERIK J, ESCH JAY A, ROLAND NICHOLAS G, HENDERSON ANDREW J
Принадлежит:

Optical display backlight assemblies having a transmissive optical film affixed to a frame which at least partially surrounds a backlight, are disclosed. The transmissive optical film can provide an increased bending resistance to the frame. The increase in bending resistance of the frame also increases the bending resistance of a display which incorporates the backlight assemblies. The optical film can be in tension after being affixed to the frame, and the tension in the film also can result in a flatter film surface with less sag. The film can be placed in tension prior to being affixed tothe frame, the frame can be elastically distorted prior to affixing the film to impart tension to the film, or the film can develop tension by shrinkage after being affixed to the frame.

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Номер записи: 16
23-11-2005 дата публикации

HEAD-UP DISPLAY WITH POLARIZED LIGHT SOURCE AND WIDE-ANGLE P-POLARIZATION REFLECTIVE POLARIZER

Номер: KR1020050110614A
Автор: WEBER MICHAEL F., OUDERKIRK ANDREW J., WHEATLEY JOHN A.
Принадлежит:

A head-up display includes a projection system and a window having a target area where a reflective polarizer is positioned to reflect light from the projection system to a viewing area. Light from the projection system is p-polarized and strikes exposed window surface(s) at an acute angle to reduce or eliminate multiple or "ghost" images. The acute angle is closely matched to a Brewster angle of the exposed window surface(s). The reflective polarizer includes a multilayer stack with refractive indices of individual layers chosen to reflect p-polarized light substantially more than s-polarized light over a wide angular range that includes the acute angle. The reflective polarizer also can reflect infrared light to reduce cabin heating from solar radiation. © KIPO & WIPO 2007 ...

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Номер записи: 17
04-06-2009 дата публикации

POLYMER FIBER POLARIZERS WITH ALIGNED FIBERS

Номер: KR1020090057233A
Автор: BENSON OLESTER JR., BROTT ROBERT L., FLEMING PATRICK R., HART SHANDON D., OUDERKIRK ANDREW J.
Принадлежит:

A polarizing film is made of multilayer polarizing fibers embedded within a matrix. The fibers are formed with layers of at least a first and a second polymer material. Layers of the first polymer material are disposed between layers of the second polymer material. At least one of the first and second polymer materials is birefringent. Where the fibers are non-circular in cross-section, the cross-section can be oriented within the polarizer. © KIPO & WIPO 2009 ...

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Номер записи: 18
04-06-2009 дата публикации

MULTILAYER POLARIZING FIBERS AND POLARIZERS USING SAME

Номер: KR1020090057230A
Автор: OUDERKIRK ANDREW J., BLUEM GREGORY L., BROTT ROBERT L., FLEMING PATRICK R., FRANKEL JOAN M., HART SHANDON D., KOPECKY WILLIAM J., TAI HUIWEN, VOGEL MARTIN MARGARET M., ZILLIG DANIEL J.
Принадлежит:

A polarizing film is made of multilayer polarizing fibers embedded within a matrix. The fibers are formed with layers of at least a first and a second polymer material. Layers of the first polymer material are disposed between layers of the second polymer material. At least one of the first and second polymer materials is birefringent. In some embodiments the thickness of the layers of at least one of the materials varies across the fiber, and may include layers are selected as quarter-wavelength thickness for light having a wavelength of more than 700 nm. © KIPO & WIPO 2009 ...

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Номер записи: 19
12-12-2008 дата публикации

REINFORCED OPTICAL FILMS

Номер: KR1020080108257A
Автор: OUDERKIRK ANDREW J., HART SHANDON D., BENSON OLESTER JR., FLEMING PATRICK R., THUNHORST KRISTIN L.
Принадлежит:

Optical films having structured surfaces are used, inter alia, for managing the propagation of light within a display. As displays become larger, it becomes more important that the film be reinforced so as to maintain rigidity. An optical film of the invention has a first layer comprising inorganic fibers embedded within a polymer matrix. A second layer having a structured surface, for providing an optical function to light passing therethrough, is attached to the first layer. The film may have various beneficial optical properties, for example, light that propagates substantially perpendicularly through the first layer may be subject to no more than a certain level of haze or light incident on the film may be subject to a minimum value of brightness gain. Various methods of manufacturing the films are described. © KIPO & WIPO 2009 ...

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Номер записи: 20
14-02-2006 дата публикации

Optical film with co-continuous phases

Номер: US0006999233B2
Автор: Richard C. Allen, Arthur L. Kotz, Lockwood W. Carlson, Timothy J. Nevitt, Andrew J. Ouderkirk, Carl A. Stover, Michael F. Weber, Biswaroop Majumdar, ALLEN RICHARD C, KOTZ ARTHUR L, CARLSON LOCKWOOD W, NEVITT TIMOTHY J, OUDERKIRK ANDREW J, STOVER CARL A, WEBER MICHAEL F, MAJUMDAR BISWAROOP, ALLEN RICHARD C., KOTZ ARTHUR L., CARLSON LOCKWOOD W., NEVITT TIMOTHY J., OUDERKIRK ANDREW J., STOVER CARL A., WEBER MICHAEL F.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.

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Номер записи: 21
03-03-2009 дата публикации

Phosphor based illumination system having a long pass reflector and method of making same

Номер: US0007497608B2
Автор: John A. Wheatley, Andrew J. Ouderkirk, Michael F. Weber, Kenneth A. Epstein, James E. Watson, WHEATLEY JOHN A, OUDERKIRK ANDREW J, WEBER MICHAEL F, EPSTEIN KENNETH A, WATSON JAMES E, WHEATLEY JOHN A., OUDERKIRK ANDREW J., WEBER MICHAEL F., EPSTEIN KENNETH A., WATSON JAMES E.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

An illumination system including a light source, a light guide including an output surface, emissive material positioned between the light source and the output surface of the light guide, and an interference reflector positioned between the emissive material and the output surface of the light guide is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.

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Номер записи: 22
08-03-2011 дата публикации

Optical element for lateral light spreading in back-lit displays and system using same

Номер: US0007903194B2
Автор: Kenneth A. Epstein, Timothy J. Hebrink, Andrew J. Ouderkirk, Michael F. Weber, EPSTEIN KENNETH A, HEBRINK TIMOTHY J, OUDERKIRK ANDREW J, WEBER MICHAEL F, EPSTEIN KENNETH A., HEBRINK TIMOTHY J., OUDERKIRK ANDREW J., WEBER MICHAEL F.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

A display system has a controlled transmission mirror disposed between the light sources and the display panel. The controlled transmission mirror includes a light-diverting input coupling element facing the light sources, a light-diverting output coupling element facing the display panel and a multilayer reflector between the input and output coupling elements. The controlled transmission mirror laterally spreads the light, making the illumination of the panel more uniform. The controlled transmission mirror may include a transparent substrate between the input and output coupling elements for additional light spreading. The light sources may be positioned within the controlled transmission mirror, rather than behind it. The output coupling element can be insensitive to polarization, so the light passing out of the controlled transmission mirror is unpolarized, or the output coupling element can be polarization sensitive so that the output light is polarized.

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Номер записи: 23
02-09-2003 дата публикации

Optical film

Номер: US0006613421B2
Автор: James M. Jonza, Michael F. Weber, Andrew J. Ouderkirk, Carl A. Stover, JONZA JAMES M, WEBER MICHAEL F, OUDERKIRK ANDREW J, STOVER CARL A, JONZA JAMES M., WEBER MICHAEL F., OUDERKIRK ANDREW J., STOVER CARL A.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Birefringent optical films have a Brewster angle (the angle at which reflectance of p-polarized light goes to zero) which is very large or is nonexistent. This allows for the construction of multilayer mirrors and polarizers whose reflectivity for p-polarized light decreases slowly with angle of incidence, are independent of angle of incidence, or increase with angle of incidence away from the normal. As a result, mirror films with high reflectivity in two different planes of polarization for any incident direction over a wide bandwidth can be achieved.

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Номер записи: 24
05-11-2002 дата публикации

Color shifting film glitter

Номер: US0006475609B1
Автор: Leland R. Whitney, Andrew J. Ouderkirk, Thomas J. Scanlan, WHITNEY LELAND R, OUDERKIRK ANDREW J, SCANLAN THOMAS J, WHITNEY LELAND R., OUDERKIRK ANDREW J., SCANLAN THOMAS J.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Glitter, at least a portion of which comprises color shifting film. The glitter is useful in any of a variety of ways, including in loose form, attached to the surface of a substrate, in a dispersible combination, or present in a matrix material ranging, for example, from liquids, such as water and alcohols, to gels, such as silicone and glycerol, to hard, rigid materials such as plastics, particle board, and fiberglass. Examples of other matrix materials include putties or molding clays, rubbers, and adhesives.

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Номер записи: 25
24-09-2002 дата публикации

Visible mirror film glitter

Номер: US0006455140B1
Автор: Leland R. Whitney, Andrew J. Ouderkirk, WHITNEY LELAND R, OUDERKIRK ANDREW J, WHITNEY LELAND R., OUDERKIRK ANDREW J.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Glitter, at least a portion of which, comprise visible mirror film. The glitter is useful in any of a variety of ways, including in loose form, attached to the surface of a substrate, in a dispersible combination, or present in a matrix material ranging, for example, from liquids, such as water and alcohols, to gels, such as silicone and glycenol, to hard, rigid materials such as plastics, particle board and fiberglass.

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Номер записи: 26
08-11-2007 дата публикации

LED PACKAGE WITH ENCAPSULATED CONVERGING OPTICAL ELEMENT

Номер: US2007257271A1
Автор: OUDERKIRK ANDREW J, LEATHERDALE CATHERINE A, OUDERKIRK ANDREW J., LEATHERDALE CATHERINE A.
Принадлежит:

The present application discloses a light source comprising an LED die having an emitting surface, a first optical element including a base, an apex, and a converging side joining the base and the apex, wherein the base is optically coupled to the emitting surface and a second optical element encapsulating the LED die and the first optical element. In one aspect, the base is no greater in size than the emitting surface. In a second aspect, the apex resides over the emitting surface. In a third aspect, the second optical element provides an increase in power extracted from the LED die as compared to the power extracted by first optical element alone. In a fourth aspect, the first optical element has a first index of refraction and the second optical element has a second index of refraction lower than the first index of refraction.

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Номер записи: 27
25-08-2005 дата публикации

Multilayer optical bodies

Номер: US2005186408A1
Автор: CONDO PETER D, HEBRINK TIMOTHY J, WHEATLY JOHN A, OUDERKIRK ANDREW J, RUFF ANDREW T, ANDRUS MILTON H JR, CONDO PETER D., HEBRINK TIMOTHY J., WHEATLY JOHN A., OUDERKIRK ANDREW J., RUFF ANDREW T., ANDRUS MILTON H.JR.
Принадлежит:

Optical bodies, comprising: a plurality of first optical layers comprising a first polymer composition that comprises (i) a polyester portion having terephthalate comonomer units and ethylene glycol comonomer units; and (ii) a second portion corresponding to a polymer having a glass transition temperature of at least about 130° C.; and a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers. Also disclosed are optical bodies comprising: (a) a plurality of first optical layers, each first optical layer being oriented; and (b) a plurality of second optical layers, disposed in a repeating sequence with the plurality of first optical layers, comprising a blend of polymethylmethacrylate and polyvinylidene fluoride. Methods of making the above-described optical bodies, and articles employing such optical bodies are also provided.

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Номер записи: 28
31-08-2007 дата публикации

ILLUMINATION ASSEMBLY AND METHOD OF MAKING SAME

Номер: KR1020070089745A
Автор: OUDERKIRK ANDREW J., TRAN HUNG T., SCHULTZ JOHN C., WHEATLEY JOHN A., SCHENKE KAY UWE, MEIS MICHAEL A., POJAR STEPHEN J., LEHNHARDT WOLFGANG N.
Принадлежит:

An illumination assembly including a thermally conductive substrate, a patterned conductive layer proximate a major surface of the thermally conductive substrate, a dielectric layer positioned between the patterned conductive layer and the major surface of the substrate, and at least one LED including a post that is attached to the major surface of the thermally conductive substrate is disclosed. The at least one LED can be thermally connected to the thermally conductive substrate through the post and electrically connected to the patterned conductive layer. The dielectric layer can be reflective. © KIPO & WIPO 2007 ...

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Номер записи: 29
26-03-2007 дата публикации

PHOSPHOR BASED ILLUMINATION SYSTEM HAVING A SHORT PASS REFLECTOR AND METHOD OF MAKING SAME

Номер: KR1020070033448A
Автор: OUDERKIRK ANDREW J., WHEATLEY JOHN A., WEBER MICHAEL F., EPSTEIN KENNETH A., WATSON JAMES E.
Принадлежит:

An illumination system (1300) including a light source (1320), a light guide (1312) including an output surface (1314), emissive material (1340) positioned to receive light from the output surface (1314) of the light guide (1312), and a first interference reflector (1330) positioned between the output surface (1314) of the light guide (1312) and the emissive material (1340) is disclosed. The light source (1320) emits light having a first optical characteristic. The emissive material (1340) emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The first interference reflector (1330) substantially transmits light having the first optical characteristic and substantially reflects light having the second optical characteristic. © KIPO & WIPO 2007 ...

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Номер записи: 30
22-11-2005 дата публикации

Optical film with sharpened bandedge

Номер: US0006967778B1
Автор: John A. Wheatley, Michael F. Weber, Andrew J. Ouderkirk, WHEATLEY JOHN A, WEBER MICHAEL F, OUDERKIRK ANDREW J, WHEATLEY JOHN A., WEBER MICHAEL F., OUDERKIRK ANDREW J.
Принадлежит: 3M Innovative Properties Co., 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES CO.

The present invention provides reflective films and other optical bodies which exhibit sharp bandedges on one or both sides of the main reflection bands. The optical bodies comprise multilayer stacks M1 and M2, each having first order reflections in a desired part of the spectrum and comprising optical repeating units R1 and R2, respectively. At least one of the optical repeating units R1 and R2 varies monotonically in optical thickness along the thickness of the associated multilayer stack.

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Номер записи: 31
04-05-2006 дата публикации

LED package with front surface heat extractor

Номер: US2006091414A1
Автор: OUDERKIRK ANDREW J, WHEATLEY JOHN A, LEATHERDALE CATHERINE A, OUDERKIRK ANDREW J., WHEATLEY JOHN A., LEATHERDALE CATHERINE A.
Принадлежит:

Light sources are disclosed utilizing LED dies having at least one emitting surface. An optical element is disclosed for efficiently extracting light out of an LED die by controlling the angular distribution of the emitted light. The optical element has an input surface that is optically coupled to the emitting surface, an output surface that is larger in surface area than the input surface, and at least one intermediate surface. A heat sink thermally coupled to the intermediate surface of the optical element extracts heat from the emitting surface of the LED die via the optical element.

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Номер записи: 32
28-10-2005 дата публикации

PHOSPHOR BASED LIGHT SOURCES HAVING A REFLECTIVE POLARIZER

Номер: KR1020050103281A
Автор: OUDERKIRK ANDREW J., WEBER MICHAEL F.
Принадлежит:

A LED package includes an LED that emits excitation light and an optically transparent body. A layer of phosphor material is positioned to receive the excitation light and is disposed on or in the optically transparent body. The phosphor material emits visible light when illuminated with the excitation light. A reflective polarizer layer is disposed on or in the optically transparent body and is positioned to receive the emitted visible light. © KIPO & WIPO 2007 ...

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Номер записи: 33
04-12-2007 дата публикации

REFLECTIVE POLARIZERS CONTAINING POLYMER FIBERS

Номер: KR1020070114776A
Автор: OUDERKIRK ANDREW J., ALLEN RICHARD C., FLEMING PATRICK R., NORTH DIANE, RUFF ANDREW T., THUNHORST KRISTIN L.
Принадлежит:

A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave. © KIPO & WIPO 2008 ...

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Номер записи: 34
04-10-2005 дата публикации

PHOSPHOR BASED LIGHT SOURCE HAVING A FLEXIBLE SHORT PASS REFLECTOR

Номер: KR1020050095873A
Автор: OUDERKIRK ANDREW J., WHEATLEY JOHN A., WEBER MICHAEL F.
Принадлежит:

A light source includes an LED that emits excitation light, a first flexible multilayer reflector that reflects at least a portion of visible light and transmits the excitation light, and a layer of phosphor material adjacent the flexible multilayer reflector. The phosphor material emits visible light when illuminated with the excitation light. © KIPO & WIPO 2007 ...

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Номер записи: 35
25-03-2015 дата публикации

Anamorphic light guide

Номер: CN104471469A
Автор: OUDERKIRK ANDREW J., LEE JUSTINA SZE YING, PALANISWAMY RAVI, JESUDOSS AROKIARAJ, INGHAM KELLY REED
Принадлежит:

A backlight system for a display is described. The system can include an anamorphic light guide that comprises a light receiving portion, a light diverting portion, and a light output portion. The light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least an order of magnitude. The light input face is substantially perpendicular to light output face. The etendue of the light is substantially preserved.

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Номер записи: 36
21-01-2009 дата публикации

METHODS OF MAKING LED EXTRACTOR ARRAYS

Номер: KR1020090008311A
Автор: BARNES AMY S., ROSENFLANZ ANATOLY Z., LEATHERDALE CATHERINE A., OUDERKIRK ANDREW J., ROLF JACQUELINE C.
Принадлежит:

A molding operation produces an extractor array by providing a mold having a plurality of cavities therein, each cavity being adapted to form an extractor suitable for coupling to an LED die; filling the mold with a plurality of glass particles; heating the glass particles above glass transition temperatures thereof so that the particles are reshaped to conform to the cavity shapes; and forming a land layer that extends between the cavities. The land layer maintains the extractors in a fixed spatial relationship with each other for subsequent handling or processing, such as a simultaneous polishing operation or in attaching the extractor array to a corresponding LED array. © KIPO & WIPO 2009 ...

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Номер записи: 37
10-07-2007 дата публикации

PROCESS FOR MANUFACTURING OPTICAL AND SEMICONDUCTOR ELEMENTS

Номер: KR1020070073944A
Автор: OUDERKIRK ANDREW J., LUGG PAUL S., BENSON OLESTER JR., LEATHERDALE CATHERINE A., JOSEPH WILLIAM D.
Принадлежит:

A method for fabricating an array of precisely shaped and located shaped elements utilizes a precisely shaped patterned abrasive to form channels in a workpiece. One or more patterned abrasives contact and abrade along one or more intersecting axes to define the shaped elements. The shaped elements may include optical elements, semiconductor elements, or both. © KIPO & WIPO 2007 ...

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Номер записи: 38
10-07-2008 дата публикации

REFLECTIVE POLARIZERS CONTAINING POLYMER FIBERS

Номер: US2008165419A1
Автор: OUDERKIRK ANDREW J, ALLEN RICHARD C, FLEMING PATRICK R, NORTH DIANE, RUFF ANDREW T, THUNHORST KRISTIN L, OUDERKIRK ANDREW J., ALLEN RICHARD C., FLEMING PATRICK R., RUFF ANDREW T., THUNHORST KRISTIN L.
Принадлежит:

A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.

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Номер записи: 39
05-10-2010 дата публикации

LED illumination assembly with compliant foil construction

Номер: US0007806560B2
Автор: John C. Schultz, Andrew J. Ouderkirk, Joel S. Peiffer, Nelson B. O'Bryan, John A. Wheatley, Cameron T. Murray, SCHULTZ JOHN C, OUDERKIRK ANDREW J, PEIFFER JOEL S, O'BRYAN NELSON B, WHEATLEY JOHN A, MURRAY CAMERON T, SCHULTZ JOHN C., OUDERKIRK ANDREW J., PEIFFER JOEL S., O'BRYAN NELSON B., WHEATLEY JOHN A., MURRAY CAMERON T.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

An illumination assembly includes a compliant substrate comprising a first and second electrically conductive foil separated by an electrically insulating layer. The insulating layer includes a polymer material loaded with particles that enhance thermal conductivity of the insulating layer. A plurality of LED dies are disposed on the first conductive foil.

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Номер записи: 40
26-06-2008 дата публикации

REINFORCED REFLECTIVE POLARIZER FILMS

Номер: US2008151372A1
Автор: OUDERKIRK ANDREW J, BENSON OLESTER, HEBRINK TIMOTHY J, HART SHANDON D, THUNHORST KRISTIN L, FLEMING PATRICK R, OUDERKIRK ANDREW J., HEBRINK TIMOTHY J., HART SHANDON D., THUNHORST KRISTIN L., FLEMING PATRICK R.
Принадлежит:

An optical film has a first layer and a second layer. The first and second layers each include fibers embedded within respective polymeric matrices. A third layer having a reflective polarizer layer is mounted between the first and second layers.

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Номер записи: 41
14-03-2008 дата публикации

POLARIZATION SENSITIVE ILLUMINATION ELEMENT AND SYSTEM USING SAME

Номер: KR1020080023698A
Автор: HEBRINK TIMOTHY J., OUDERKIRK ANDREW J., WEBER MICHAEL F.
Принадлежит:

A display system has a controlled transmission mirror disposed between the light sources and the display panel. The controlled transmission mirror includes a light-diverting input coupling element facing the light sources, a light-diverting output coupling element facing the display panel and a multilayer reflector between the input and output coupling elements. The controlled transmission mirror laterally spreads the light, making the illumination of the panel more uniform. The controlled transmission mirror may include a transparent substrate between the input and output coupling elements for additional light spreading. The light sources may be positioned within the controlled transmission mirror, rather than behind it. The output coupling element can be polarization sensitive so that the output light is polarized. © KIPO & WIPO 2008 ...

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Номер записи: 42
30-08-2007 дата публикации

ILLUMINATION ASSEMBLY AND METHOD OF MAKING SAME

Номер: KR1020070089183A
Автор: OUDERKIRK ANDREW J., MEIS MICHAEL A., TRAN HUNG T., HOFFMAN JOSEPH A.
Принадлежит:

An illumination assembly including a thermally conductive substrate, a reflective layer proximate a first major surface of the thermally conductive substrate, a patterned conductive layer positioned between the reflective layer and the first major surface of the thermally conductive substrate and electrically isolated from the thermally conductive substrate, and at least one LED including a post that is attached to the thermally conductive substrate is disclosed. The at least one LED can be thermally connected to the thermally conductive substrate through the post and electrically connected to the patterned conductive layer. © KIPO & WIPO 2007 ...

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Номер записи: 43
07-09-2004 дата публикации

Post-formable multilayer optical films and methods of forming

Номер: US0006788463B2
Автор: William W. Merrill, James M. Jonza, Olester Benson, Jr., Andrew J. Ouderkirk, Michael F. Weber, MERRILL WILLIAM W, JONZA JAMES M, BENSON JR OLESTER, OUDERKIRK ANDREW J, WEBER MICHAEL F, MERRILL WILLIAM W., JONZA JAMES M., BENSON, JR. OLESTER, OUDERKIRK ANDREW J., WEBER MICHAEL F.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are disclosed. The articles, methods and multilayer optical films of the present invention allow for post-forming of multilayer optical films including strain-induced index of refraction differentials while retaining the desired optical properties of the multilayer optical films.

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Номер записи: 44
25-04-2001 дата публикации

VISIBLE MIRROR FILM GLITTER

Номер: KR20010034065A
Автор: WHITNEY LELAND R., OUDERKIRK ANDREW J.
Принадлежит:

Glitter, at least a portion of which, comprise visible mirror film. The glitter is useful in any of a variety of ways, including in loose form, attached to the surface of a substrate, in a dispersible combination, or present in a matrix material ranging, for example, from liquids, such as water and alcohols, to gels, such as silicone and glycerol, to hard, rigid materials such as plastics, particle board, and fiberglass. Examples of other matrix materials include putties or molding clays, rubbers, and adhesives. © KIPO & WIPO 2007 ...

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Номер записи: 45
15-07-2009 дата публикации

ROLLS OF OPTICAL FILM

Номер: KR1020090077764A
Автор: MERRILL WILLIAM W., OUDERKIRK ANDREW J., JOHNSON MATTHEW B., O'NEILL MARK B., DENKER MARTIN E., HEBRINK TIMOTHY J.
Принадлежит:

An exemplary roll of film includes an oriented optical film comprising a birefringent material characterized by an effective orientation axis and a normalized difference between a refractive index for light polarized along TD and a refractive index for light polarized along ND being less than 0.06. The optical film has a width of greater than 0.3 m and a length greater than 10 m, and the effective orientation axis is aligned along the length of the optical film (MD). © KIPO & WIPO 2009 ...

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Номер записи: 46
26-12-2008 дата публикации

LED PACKAGE WITH CONVERGING OPTICAL ELEMENT

Номер: KR1020080113089A
Автор: LEATHERDALE CATHERINE A., OUDERKIRK ANDREW J., LU DONG
Принадлежит:

The present application discloses a light source comprising an LED die having an emitting surface and an optical element including a base, an apex smaller than the base, and a converging side extending between the base and the apex, wherein the base is optically coupled to and is no greater in size than the emitting surface, and wherein the optical element directs light emitted by the LED die to produce a side emitting pattern. © KIPO & WIPO 2009 ...

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Номер записи: 47
19-05-2015 дата публикации

Optical light guide coupler

Номер: US0009036964B2
Автор: Andrew J. Ouderkirk, OUDERKIRK ANDREW J, OUDERKIRK ANDREW J.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

An optical light guide coupler for coupling at least two light guides comprises an input face and an output face, wherein the optical light guide coupler is configured to receive light from a first light guide having a stepped output profile and is configured to transmit that light to a second light guide having a non-stepped profile. The input face of the light guide coupler is registered to the stepped output profile of the first light guide and the output face of the light guide coupler is at least one of rectilinear and curved.

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Номер записи: 48
02-07-2007 дата публикации

LED PACKAGE WITH NON-BONDED OPTICAL ELEMENT

Номер: KR1020070070254A
Автор: CONNER ARLIE R., LEATHERDALE CATHERINE A., OUDERKIRK ANDREW J., WHEATLEY JOHN A.
Принадлежит:

Light sources are disclosed utilizing LED dies having at least one emitting surface. An optical element is provided for efficiently extracting light out of an LED die by controlling the angular distribution of the emitted light. The optical element is optically coupled to but is mechanically decoupled from the emitting surface of the LED die. The optical element has an input surface that is optically coupled to the emitting surface, an output surface that is larger in surface area than the input surface, and at least one intermediate surface. © KIPO & WIPO 2007 ...

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Номер записи: 49
09-01-2009 дата публикации

PROCESS FOR MAKING AN OPTICAL FILM AND ROLLS OF OPTICAL FILM

Номер: KR1020090003280A
Автор: MERRILL WILLIAM WARD, OUDERKIRK ANDREW J., JOHNSON MATTHEW B., HEBRINK TIMOTHY J., DENKER MARTIN E., O'NEILL MARK B.
Принадлежит:

Exemplary methods include includes providing a film comprising at least one polymeric material; widening the film under a first set of processing conditions in a first draw step along the crossweb direction such that in-plane birefringence, if any, created in the film is low; and drawing the film in a second draw step along a downweb direction under a second set of processing conditions, wherein the second set of processing conditions creates in-plane birefringence in at least one polymeric material. Exemplary roll of film includes an oriented optical film characterized by an effective orientation axis. The oriented optical film comprises only one birefringent polymeric material, at least one birefringent material and at least one isotropic material, or a first birefringent material and a second birefringent material, the birefringent materials characterized by effective orientation axes along the MD. The optical film has a width of greater than 0.3 m and a length a length greater than ...

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Номер записи: 50
12-11-2007 дата публикации

POLYMERIC PHOTONIC CRYSTALS WITH CO-CONTINUOUS PHASES

Номер: KR1020070108557A
Автор: OUDERKIRK ANDREW J., BENSON OLESTER JR., BROTT ROBERT L., FLEMING PATRICK R., LEATHERDALE CATHERINE A., NEAVIN TERENCE D., NORTH DIANE
Принадлежит:

An optical element is formed by co-extruding to have an arrangement of polymer scattering fibers within a polymer matrix. The scattering fibers lie substantially parallel to a first axis. The scattering fibers are arranged at positions across the cross-section of the polymer matrix to scatter light transversely incident on the optical element in a direction substantially orthogonal to the first axis. The positions of the scattering fibers across the cross-section of the optical element may be selected so as to form a two-dimensional photonic crystal structure for light transversely incident on the optical element. © KIPO & WIPO 2008 ...

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Номер записи: 51
26-10-2005 дата публикации

PHOSPHOR BASED LIGHT SOURCES HAVING A NON-PLANAR LONG PASS REFLECTOR

Номер: KR1020050102625A
Автор: OUDERKIRK ANDREW J., WHEATLEY JOHN A.
Принадлежит:

A light source includes an LED that emits excitation light, an optically transparent body, a phosphor material positioned to receive the excitation light and disposed on or in the optically transparent body, the phosphor material emitting visible light when illuminated with the excitation light, and a non-planar flexible multilayer reflector that reflects the excitation light and transmits visible light. The non-planar polymeric multilayer reflector is positioned to reflect LED light onto the phosphor material. © KIPO & WIPO 2007 ...

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Номер записи: 52
26-10-2005 дата публикации

PHOSPHOR BASED LIGHT SOURCES HAVING A POLYMERIC LONG PASS REFLECTOR

Номер: KR1020050102624A
Автор: OUDERKIRK ANDREW J., WEBER MICHAEL F., WHEATLEY JOHN A.
Принадлежит:

A light source includes an LED that emits excitation light, a polymeric multilayer reflector that reflects the excitation light and transmits visible light, and a layer of phosphor material spaced apart from the LED. The phosphor material emits visible light when illuminated with the excitation light. The polymeric multilayer reflector reflects excitation light onto the phosphor material. The layer of phosphor material is disposed between the LED and the polymeric multilayer reflector. © KIPO & WIPO 2007 ...

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Номер записи: 53
17-01-2008 дата публикации

LED PACKAGE WITH CONVERGING EXTRACTOR

Номер: US2008012034A1
Автор: THIELEN JAMES A, LEATHERDALE CATHERINE A, OUDERKIRK ANDREW J, LU DONG, BARNES AMY S, THIELEN JAMES A., LEATHERDALE CATHERINE A., OUDERKIRK ANDREW J., BARNES AMY S.
Принадлежит:

In one aspect, the present application discloses a light source comprising an LED die optically coupled to an extractor comprising a plurality of optical elements each having a base, an apex smaller than the base, and a converging side extending between the base and the apex. The extractor base is no greater in size than the emitting surface of the LED die. In another aspect, methods of making light sources are disclosed, comprising the steps of providing an LED die having an emitting surface; forming a plurality of optical elements each having a base, an apex smaller than the base, and a converging side extending between the base and the apex; arranging the plurality of optical elements to form an extractor, the extractor having an extractor base no greater in size than the emitting surface; and optically coupling the extractor base to the emitting surface of the LED die.

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Номер записи: 54
21-05-2009 дата публикации

Multifunctional thick film reflective polarizer for displays

Номер: US2009128737A1
Автор: OUDERKIRK ANDREW J, NEVITT TIMOTHY J, OUDERKIRK ANDREW J., NEVITT TIMOTHY J.
Принадлежит:

Multilayer reflective polarizers are disclosed that utilize a thick film multilayer stack and that are suitable for use in liquid crystal display devices. The disclosed polarizers can be mechanically stiff and suitable for use as a plate or substrate for other light control films within the display. The polarizers can also include diffusing means to scatter transmitted light of the pass state, reflected light of the block state, or both.

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Номер записи: 55
25-06-2014 дата публикации

TILTED DICHROIC POLARIZING BEAMSPLITTER

Номер: CN103890639A
Автор: POON YARN CHEE, OUDERKIRK ANDREW J., WATSON PHILIP E., CHENG XIAOHUI, TAN KIM L., WILLETT STEPHEN J.
Принадлежит:

The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.

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Номер записи: 56
14-03-2008 дата публикации

OPTICAL ELEMENT FOR LATERAL LIGHT SPREADING IN BACK-LIT DISPLAYS AND SYSTEM USING SAME

Номер: KR1020080023697A
Автор: EPSTEIN KENNETH A., HEBRINK TIMOTHY J., OUDERKIRK ANDREW J., WEBER MICHAEL F.
Принадлежит:

A display system (100) has a semi-transmissive mirror (120) disposed between the light sources (116a, 116b) and the display panel (102). The semi-transmissive mirror includes a light-diverting input coupling element (206) facing the light sources, a light-diverting output coupling element (208) facing the display panel and a multilayer reflector (204) between the input and output coupling elements. The semi-transmissive mirror laterally spreads the light, making the illumination of the panel more uniform. The semi-transmissive mirror may include a transparent substrate (202) between the input and output coupling elements for additional light spreading. The light sources may be positioned within the controlled transmission mirror, rather than behind it. The output coupling (208) element can be non polarizing, so the light passing out of the controlled transmission mirror is unpolarized, or it can be polarizing so that the output light is polarized. © KIPO & WIPO 2008 ...

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Номер записи: 57
08-11-2007 дата публикации

ARTICLE HAVING A BIREFRINGENT SURFACE FOR USE AS A BLUR FILTER

Номер: KR1020070108207A
Автор: BIERNATH ROLF W., MERRILL WILLIAM W., BROTT ROBERT L., OUDERKIRK ANDREW J., WILLIAMS TODD R., BALLEN TODD A.
Принадлежит:

An optical low pass filter or blur filter, and method of making the filters, using an article having a birefringent surface for refracting incoming light when used with an image sensor. The birefringent surface of the article, such as a film, is structured or tilted such that, when the blur filter is placed within an optical path between a lens and the image sensor, the birefringent surface causes refraction of a light signal in the optical path into multiple light signals each being incident upon different sub-pixels within the pixels in the image sensor to prevent or reduce artifacts, such as undesirable color moire effects, in the resulting digital image. © KIPO & WIPO 2008 ...

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Номер записи: 58
03-06-2014 дата публикации

Backlight and display system using same

Номер: US0008740442B2
Автор: Michael F. Weber, Timothy J. Hebrink, Timothy J. Nevitt, John A. Wheatley, Craig R. Schardt, Rolf W. Biernath, William J. Bryan, Andrew J. Ouderkirk, David G. Freier, Myron K. Jordan, Kristopher J. Derks, Zhaohui Yang, Edward J. Kivel, WEBER MICHAEL F, HEBRINK TIMOTHY J, NEVITT TIMOTHY J, WHEATLEY JOHN A, SCHARDT CRAIG R, BIERNATH ROLF W, BRYAN WILLIAM J, OUDERKIRK ANDREW J, FREIER DAVID G, JORDAN MYRON K, DERKS KRISTOPHER J, YANG ZHAOHUI, KIVEL EDWARD J, WEBER MICHAEL F., HEBRINK TIMOTHY J., NEVITT TIMOTHY J., WHEATLEY JOHN A., SCHARDT CRAIG R., BIERNATH ROLF W., BRYAN WILLIAM J., OUDERKIRK ANDREW J., FREIER DAVID G., JORDAN MYRON K., DERKS KRISTOPHER J., KIVEL EDWARD J.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane.

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Номер записи: 59
28-09-2004 дата публикации

Color shifting film articles

Номер: US0006797366B2
Автор: Gary B. Hanson, James M. Jonza, Andrew J. Ouderkirk, John A. Wheatley, HANSON GARY B, JONZA JAMES M, OUDERKIRK ANDREW J, WHEATLEY JOHN A, HANSON GARY B., JONZA JAMES M., OUDERKIRK ANDREW J., WHEATLEY JOHN A.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a change in color as a function of viewing angle.

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Номер записи: 60
10-06-2008 дата публикации

Thick film multilayer reflector with tailored layer thickness profile

Номер: US0007385763B2
Автор: Timothy J. Nevitt, Andrew J. Ouderkirk, NEVITT TIMOTHY J, OUDERKIRK ANDREW J, NEVITT TIMOTHY J., OUDERKIRK ANDREW J.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

A multilayer reflector useable to reflect or transmit light over the visible wavelength range includes optically thick constituent layers. The optical thickness of the constituent layers through the thickness of the reflector defines a layer thickness profile. The layers are arranged so that the thickness profile has a tailored non-uniform distribution, such as a graded distribution or a randomized distribution. The layers desirably have an optical thickness in a range from about one to five or one to ten design wavelengths. The reflector can be a polarizer, reflecting only one normally incident polarization state, or a mirror, reflecting two normally incident orthogonal polarization states.

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Номер записи: 61
26-03-2007 дата публикации

PHOSPHOR BASED ILLUMINATION SYSTEM HAVING A PLURALITY OF LIGHT GUIDES AND A DISPLAY USING SAME

Номер: KR1020070033449A
Автор: OUDERKIRK ANDREW J., WHEATLEY JOHN A., WEBER MICHAEL F., EPSTEIN KENNETH A., SCHARDT CRAIG R., WATSON JAMES E., SCHULTZ JOHN C.
Принадлежит:

An illumination system (1300) including a light source (1320), light guides (1312) coupled to the light source (1312), each including an input surface (1316) and an output surface (1314), emissive material (1340) positioned to receive light from at least one light guide, and a first interference reflector (1332) positioned between the emissive material (1340) and the output surfaces (1314) of the light guides is disclosed. The light source (1320) emits light having a first optical characteristic. The emissive material (1340) emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The first interference reflector (1330) substantially transmits light having the first optical characteristic and substantially reflects light having the second optical characteristic. © KIPO & WIPO 2007 ...

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Номер записи: 62
18-08-2010 дата публикации

Methods of making LED extractor arrays

Номер: CN0101438202B
Автор: ROLF JACQUELINE C, BARNES AMY S, ROSENFLANZ ANATOLY Z, OUDERKIRK ANDREW J, LEATHERDALE CATHERINE A, ROLF JACQUELINE C., BARNES AMY S., ROSENFLANZ ANATOLY Z., OUDERKIRK ANDREW J., LEATHERDALE CATHERINE A.
Принадлежит:

A molding operation produces an extractor array by providing a mold having a plurality of cavities therein, each cavity being adapted to form an extractor suitable for coupling to an LED die; filling the mold with a plurality of glass particles; heating the glass particles above glass transition temperatures thereof so that the particles are reshaped to conform to the cavity shapes; and forming aland layer that extends between the cavities. The land layer maintains the extractors in a fixed spatial relationship with each other for subsequent handling or processing, such as a simultaneous polishing operation or in attaching the extractor array to a corresponding LED array.

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Номер записи: 63
09-01-2009 дата публикации

PROCESS FOR MAKING AN OPTICAL FILM

Номер: KR1020090003279A
Автор: MERRILL WILLIAM W., OUDERKIRK ANDREW J., JOHNSON MATTHEW B., HEBRINK TIMOTHY J., DENKER MARTIN E., O'NEILL MARK B.
Принадлежит:

Exemplary methods include includes providing a film comprising at least one polymeric material; widening the film under a first set of processing conditions in a first draw step along the crossweb direction such that in-plane birefringence, if any, created in the film is low; and drawing the film in a second draw step along a downweb direction under a second set of processing conditions, wherein the second set of processing conditions creates in-plane birefringence in at least one polymeric material. Exemplary roll of film includes an oriented optical film characterized by an effective orientation axis. The oriented optical film comprises only one birefringent polymeric material, at least one birefringent material and at least one isotropic material, or a first birefringent material and a second birefringent material, the birefringent materials characterized by effective orientation axes along the MD. The optical film has a width of greater than 0.3 m and a length a length greater than ...

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Номер записи: 64
30-11-2007 дата публикации

POLYMER PHOTONIC CRYSTAL FIBERS

Номер: KR1020070114300A
Автор: OUDERKIRK ANDREW J., BENSON OLESTER JR., BROTT ROBERT L., FLEMING PATRICK R., LEATHERDALE CATHERINE A., NEAVIN TERENCE D., NORTH DIANE
Принадлежит:

A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured. © KIPO & WIPO 2008 ...

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Номер записи: 65
15-06-2010 дата публикации

Composite polymer fibers

Номер: US0007738763B2
Автор: Andrew J. Ouderkirk, Olester Benson, Jr., James C. Breister, Robert L. Brott, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson, OUDERKIRK ANDREW J, BENSON JR OLESTER, BREISTER JAMES C, BROTT ROBERT L, CHOU YEUN-JONG, FLEMING PATRICK R, KOPECKY WILLIAM J, NORTH DIANE, STUMO ROGER J, THUNHORST KRISTIN L, WILSON BRUCE B, OUDERKIRK ANDREW J., BENSON, JR. OLESTER, BREISTER JAMES C., BROTT ROBERT L., FLEMING PATRICK R., KOPECKY WILLIAM J., STUMO ROGER J., THUNHORST KRISTIN L., WILSON BRUCE B.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured.

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Номер записи: 66
14-10-2008 дата публикации

REINFORCED REFLECTIVE POLARIZER FILMS

Номер: KR1020080091781A
Автор: OUDERKIRK ANDREW J., BENSON OLESTER JR., HEBRINK TIMOTHY J., HART SHANDON D., THUNHORST KRISTIN L., FLEMING PATRICK R.
Принадлежит:

An optical film has a first layer and a second layer. The first and second layers each include fibers embedded within respective polymeric matrices. A third layer having a reflective polarizer layer is mounted between the first and second layers. © KIPO & WIPO 2009 ...

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Номер записи: 67
09-01-2002 дата публикации

REFLECTIVE PROJECTION SCREEN AND PROJECTION SYSTEM

Номер: KR20020001782A
Автор: HARADA TAKASHI, TAKAMATSU YORINOBU, ISHIKAWA MAKOTO, BRUZZONE CHARLES L., MOSHREFZADEH ROBERT S., NEVITT TIMOTHY J., OUDERKIRK ANDREW J.
Принадлежит:

Reflective front projection screens capable of projecting an image with enhanced contrast and a wide viewing angle in the presence of relatively high levels of ambient light are disclosed along with projection systems using the screens. The projection screens include a reflective polarizing element in combination with a diffusing element and/or glare suppressing element. The reflective polarizing element transmits light of one polarization state and reflects light of a different polarization state. The reflective polarizing element may be diffusely reflective or specularly reflective and the optical properties of the diffusing element and/or glare suppressing element may be selected based on the optical properties of the reflective polarizing element to further enhance image brightness and contrast. The projection systems preferably project an image using light of the polarization state that is reflected by the reflective polarizing element in the screen to further enhance brightness and ...

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Номер записи: 68
25-08-2010 дата публикации

High brightness LED package with multiple optical elements

Номер: CN0101088173B
Автор: OUDERKIRK ANDREW J., LEATHERDALE CATHERINE A., OUDERKIRK ANDREW J, LEATHERDALE CATHERINE A
Принадлежит:

A light source includes an LED die with an emitting surface and a plurality of optical elements having input surfaces in optical contact with distinct portions of the emitting surface. The optical elements can comprise tapers or concentrators that have reflective side surface(s) and output surfaces larger than the respective input surfaces. The optical elements can couple both light and heat out of the emitting surface of the LED die.

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Номер записи: 69
05-12-2008 дата публикации

STRUCTURED COMPOSITE OPTICAL FILMS

Номер: KR1020080106456A
Автор: OUDERKIRK ANDREW J., HART SHANDON D., BENSON OLESTER JR., FLEMING PATRICK R., THUNHORST KRISTIN L.
Принадлежит:

Optical films having structured surfaces are used, inter alia, for managing the propagation of light within a display. As displays become larger, it becomes more important that the film be reinforced so as to maintain rigidity. An optical film of the invention has a first layer comprising inorganic fibers embedded within a polymer matrix. The first layer has a structured surface to provide an optical function to light passing therethrough. The film may have various beneficial optical properties, for example, light that propagates substantially perpendicularly through the first layer may be subject to no more than a certain level of haze or light incident on the film may be subject to a minimum value of brightness gain. Various methods of manufacturing the films are described. © KIPO & WIPO 2009 ...

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Номер записи: 70
27-10-2005 дата публикации

PHOSPHOR BASED LIGHT SOURCES HAVING A NON-PLANAR SHORT PASS REFLECTOR AND METHOD OF MAKING

Номер: KR1020050103207A
Автор: OUDERKIRK ANDREW J., WHEATLEY JOHN A., WEBER MICHAEL F.
Принадлежит:

A light source includes an LED that emits excitation light, a layer of phosphor material positioned to receive the excitation light, the phosphor material emitting visible light when illuminated with the excitation light, and a non-planar flexible multilayer reflector that transmits the excitation light and reflects visible light. The non-planar flexible multilayer reflector is positioned between the LED and the layer of phosphor material. © KIPO & WIPO 2007 ...

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Номер записи: 71
30-01-2008 дата публикации

MULTIFUNCTIONAL THICK FILM REFLECTIVE POLARIZER FOR DISPLAYS

Номер: KR1020080010419A
Автор: OUDERKIRK ANDREW J., NEVITT TIMOTHY J.
Принадлежит:

Multilayer reflective polarizers are disclosed that utilize a thick film multilayer stack and that are suitable for use in liquid crystal display devices. The disclosed polarizers can be mechanically stiff and suitable for use as a plate or substrate for other light control films within the display. The polarizers can also include diffusing means to scatter transmitted light of the pass state, reflected light of the block state, or both. © KIPO & WIPO 2008 ...

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Номер записи: 72
30-08-2007 дата публикации

METHOD OF MAKING LIGHT EMITTING DEVICE WITH SILICON-CONTAINING ENCAPSULANT

Номер: KR1020070089163A
Автор: BOARDMAN LARRY D., THOMPSON D. SCOTT, LEATHERDALE CATHERINE A., OUDERKIRK ANDREW J.
Принадлежит:

A method of making a light emitting device is disclosed. The method includes the steps of providing a light emitting diode and forming an encapsulant in contact with the light emitting diode; wherein forming the encapsulant includes contacting the light emitting diode with a photopolymerizable composition consisting of a silicon-containing resin and a metal-containing catalyst, wherein the silicon-containing resin consists of silicon-bonded hydrogen and aliphatic unsaturation, and applying actinic radiation having a wavelength of 700 nm or less to initiate hydrosilylation within the silicon-containing resin. © KIPO & WIPO 2007 ...

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Номер записи: 73
12-10-2004 дата публикации

Electroluminescent light source and display incorporating same

Номер: US0006804058B1
Автор: Andrew J. Ouderkirk, Michael F. Weber, Olester Benson, Jr., OUDERKIRK ANDREW J, WEBER MICHAEL F, BENSON OLESTER JR, OUDERKIRK ANDREW J., WEBER MICHAEL F., BENSON, JR. OLESTER
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

A light source comprises an electroluminescent panel and a reflective polarizer that is preferably polymeric, birefringent, or both. The reflective polarizer is positioned to receive light generated by the light generating layer. The reflective polarizer transmits light of a first polarization and reflects light of a second polarization back to the light generating layer. The light generating layer diffusely reflects and randomizes the polarization state of the reflected light and recirculates the reflected light back to the reflective polarizer.

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Номер записи: 74
18-10-2007 дата публикации

Transflective LC Display Having Backlight With Spatial Color Separation

Номер: US2007242197A1
Автор: WATSON PHILIP E, OUDERKIRK ANDREW J, WATSON PHILIP E., OUDERKIRK ANDREW J.
Принадлежит:

A transflective display includes a liquid crystal (LC) panel having an array of pixels defining a viewing area, the panel being disposed between a front and back polarizer. The display also includes a backlight and a transflector, except that the transflector may optionally be or include the back polarizer. The transflector is disposed between the LC panel and the backlight. The backlight produces multiple light components that are separated spatially over the viewing area to give the display a full color appearance in the transmissive viewing mode. The multiple light components may be, for example, red, green, and blue light components, or another set of light components capable of producing white light. The display can provide a monochrome image in reflection and a full color image in transmission.

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Номер записи: 75
14-08-2007 дата публикации

Phosphor based illumination system having a light guide and an interference reflector

Номер: US0007255469B2
Автор: John A. Wheatley, Andrew J. Ouderkirk, Michael F. Weber, Kenneth A. Epstein, James E. Watson, WHEATLEY JOHN A, OUDERKIRK ANDREW J, WEBER MICHAEL F, EPSTEIN KENNETH A, WATSON JAMES E, WHEATLEY JOHN A., OUDERKIRK ANDREW J., WEBER MICHAEL F., EPSTEIN KENNETH A., WATSON JAMES E.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

An illumination system including a light source, a light guide including an output surface, emissive material positioned between the light source and the output surface of the light guide, and an interference reflector positioned between the emissive material and the output surface of the light guide is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.

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Номер записи: 76
31-12-2003 дата публикации

REFLECTIVE POLARIZER DISPLAY

Номер: KR20030097905A
Автор: OUDERKIRK ANDREW J., WEBER MICHAEL F., JONZA JAMES M., STOVER CARL A., COBB SANFORD JR., WORTMAN DAVID L., BENSON OLESTER JR.
Принадлежит:

A multiple layer reflective polarizer (12) is described. This element is placed between an optical cavity (24) and an LCD module (16) to form an optical display. The reflective polarizer reflects some light into the optical cavity (24) where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display. © KIPO & WIPO 2007 ...

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Номер записи: 77
27-10-2005 дата публикации

PHOSPHOR BASED LIGHT SOURCES UTILIZING TOTAL INTERNAL REFLECTION

Номер: KR1020050103208A
Автор: OUDERKIRK ANDREW J., WATSON JAMES E., WEBER MICHAEL F.
Принадлежит:

A LED package including an LED that emits excitation light at an excitation light wavelength and a layer of phosphor material positioned to receive the excitation light and having a first index of refraction at the excitation light wavelength. The phosphor material emits visible light at a visible light wavelength when illuminated with the excitation light. An interference reflector is positioned adjacent to the layer of phosphor material and a TIR promoting layer is in contact with the layer of phosphor material. The TIR promoting layer has a second index of refraction at the excitation light wavelength that is less than the first index of refraction at the excitation light wavelength. © KIPO & WIPO 2007 ...

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Номер записи: 78
17-01-2002 дата публикации

OPTICAL DEVICES USING REFLECTING POLARIZING MATERIALS

Номер: KR20020005702A
Автор: ALLEN RICHARD C., COBB SANFORD JR., CROSS ELISA M., NEVITT TIMOTHY J., OUDERKIRK ANDREW J., TABAR RONALD J., WORTMAN DAVID L.
Принадлежит:

Optical devices using reflective polarizers and, in particular, diffusely reflective polarizers are provided. Many of the optical devices utilize the diffusely reflecting and specularly transmitting properties of diffusely reflecting poarizers to enhance their optical characteristics. The optical devices include a lighting system which uses a reflector formed from a diffusely reflecting polarizer attached to a specular reflector. Another optical device is a display apparatus which uses a diffusely reflecting polarizer layer in combination with a turning lens which folds shallow angle light toward a light modulating layer. Other optical devices exploit the depolarizing characteristics of a diffusely reflecting polarizer when reflecting light. Still other optical devices use diffusely reflecting poarizers to recycle light and improve display illumination. © KIPO & WIPO 2007 ...

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Номер записи: 79
05-07-2002 дата публикации

MULTILAYER OPTICAL BODIES

Номер: KR20020053874A
Автор: CONDO PETER D., HEBRINK TIMOTHY J., WHEATLEY JOHN A., OUDERKIRK ANDREW J., RUFF ANDREW T., LIU YAOQI J., ANDRUS MILTON H. JR.
Принадлежит:

In various aspects, the present invention provides optical bodies configured and arranged to reflect at least a portion of light over at least one wavelength region, the bodies comprising a plurality of first optical layers comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units and a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers. In other aspects, the invention provides optical bodies comprising a plurality of first optical layers, each first optical layer being oriented; and a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethylmethacrylate and polyvinylidene fluoride. The materials are chosen such that they have compatible glass transition temperatures for orienting the layers. © KIPO & WIPO 2007 ...

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Номер записи: 80
19-12-2005 дата публикации

STRUCTURED TRANSFLECTORS FOR LIQUID CRYSTAL DISPLAYS

Номер: KR1020050118739A
Автор: KOTCHICK KEITH M., EPSTEIN KENNETH A., MARUSHIN PATRICK H., MCCLURE DONALD J., OUDERKIRK ANDREW J.
Принадлежит:

According to the invention, a color transflective dispplay device uses comprises a transmissive display unit having a viewing side and a back side and defining picture elements. A structured transflector is disposed to the back side of the color display unit. The structured transflector includes a structured surface and a layered dielectric reflector disposed over the structured surface. © KIPO & WIPO 2007 ...

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Номер записи: 81
17-01-2008 дата публикации

OPTICAL DEVICES USING REFLECTING POLARIZING MATERIALS

Номер: US2008013174A1
Автор: ALLEN RICHARD C, OUDERKIRK ANDREW J, ALLEN RICHARD C., OUDERKIRK ANDREW J.
Принадлежит:

Optical devices using reflective polarizers and, in particular, diffusely reflective polarizers are provided. Many of the optical devices utilize the diffusely reflecting and specularly transmitting properties of diffusely reflecting polarizers to enhance their optical characteristics. The optical devices include a lighting system which uses a reflector formed from a diffusely reflecting polarizer attached to a specular reflector. Another optical device is a display apparatus which uses a diffusely reflecting polarizer layer in combination with a turning lens which folds shallow angle light toward a light modulating layer. Other optical devices exploit the depolarizing characteristics of a diffusely reflecting polarizer when reflecting light. Still other optical devices use diffusely reflecting polarizers to recycle light and improve display illumination.

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Номер записи: 82
21-10-2014 дата публикации

Method of making double-sided wavelength converter and light generating device using same

Номер: US0008865493B2
Автор: Tommie W. Kelley, Andrew J. Ouderkirk, Catherine A. Leatherdale, KELLEY TOMMIE W, OUDERKIRK ANDREW J, LEATHERDALE CATHERINE A, KELLEY TOMMIE W., OUDERKIRK ANDREW J., LEATHERDALE CATHERINE A.
Принадлежит: 3M Innovative Properties Company, KELLEY TOMMIE W, OUDERKIRK ANDREW J, LEATHERDALE CATHERINE A, 3M INNOVATIVE PROPERTIES CO, KELLEY TOMMIE W., OUDERKIRK ANDREW J., LEATHERDALE CATHERINE A., 3M INNOVATIVE PROPERTIES COMPANY

A method of forming a light conversion element includes providing a semiconductor construction having a first photoluminescent element epitaxially grown together with a second photoluminescent element. A first region is etched in the first photoluminescent element from a first side of the semiconductor construction and a second region is etched in the second photoluminescent element from a second side of the semiconductor construction. In some embodiments the wavelength converter is attached to an electroluminescent element, such as a light emitting diode (LED).

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Номер записи: 83
19-05-2016 дата публикации

FLAT LIGHT GUIDE

Номер: US20160139323A1
Автор: Tilo Remhof, Nicholas T. Gabriel, Andrew J. Ouderkirk, REMHOF TILO, GABRIEL NICHOLAS T, OUDERKIRK ANDREW J, GABRIEL NICHOLAS T., OUDERKIRK ANDREW J.
Принадлежит:

The present disclosure describes a flat lightguide configured to be illuminated by one or more small light sources, such as light emitting diode (LED) light sources. The one or more small light sources inject light into an end of a stepped lightguide that includes light redirecting elements capable of changing the direction of the light to exit perpendicular to the stepped lightguide and enter an edge of a planar lightguide. 1. A lightguide , comprising:a first lightguide layer extending along a first length of the lightguide along a first direction and comprising:a first top surface comprising a first staircase extending along the first direction and comprising a plurality of first steps forming alternating first risers and first treads;an opposite first bottom surface; anda first light input side extending between the first top and bottom surfaces, the first lightguide layer being configured to receive light from the first light input side; anda second lightguide layer extending along a second length of the lightguide along a different second direction and comprising:a second top surface;an opposite second bottom surface; anda second light input side extending between the second top and bottom surfaces and comprising a row of first light redirecting elements disposed along the second light input side, each first light redirecting element being disposed on a different corresponding first tread and optically coupled to a different corresponding first riser, the first light redirecting element being configured to redirect light exiting the corresponding first riser.2. The lightguide of claim 1 , wherein the first lightguide layer is configured to receive light from the first light input side claim 1 , the received light propagating within the first lightguide layer along the first direction and exiting the first lightguide layer from the first risers.3. The lightguide of claim 1 , wherein the first light redirecting element is configured to redirect light exiting the ...

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Номер записи: 84
19-01-2012 дата публикации

FRONT PROJECTION SCREEN WITH HIGH CONTRAST

Номер: US20120013851A1
Автор: YuFeng Liu, David T. Yust, Myron K. Jordan, Andrew J. Ouderkirk, LIU YUFENG, YUST DAVID T, JORDAN MYRON K, OUDERKIRK ANDREW J, YUST DAVID T., JORDAN MYRON K., OUDERKIRK ANDREW J.
Принадлежит:

A light diffusing optical construction is disclosed. The optical construction includes an asymmetric optical diffuser that scatters light in a first direction with a first viewing angle Aand in a second direction orthogonal to the first direction with a second viewing angle A. The ratio A/Ais at least about 2. The optical construction also includes a substantially specular reflector that reflects light that is not scattered by the asymmetric optical diffuser. The substantially specular reflector has a first average reflectance Rin the visible at a substantially zero incident angle and a second average reflectance R45 in the visible at a substantially 45 degree incident angle. The ratio R/Ris at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector. 1. A light diffusing optical construction comprising:{'sub': H', 'V', 'H', 'V, 'an asymmetric optical diffuser scattering light in a first direction with a first viewing angle A, and in a second direction orthogonal to the first direction with a second viewing angle A, A/Abeing at least about 2;'}{'sub': o', '45', 'o', '45, 'a substantially specular reflector reflecting light that is not scattered by the asymmetric optical diffuser and having a first average reflectance Rin the visible at a substantially zero incident angle and a second average reflectance Rin the visible at a substantially 45 degree incident angle, R/Rbeing at least about 1.5; and'}a light absorbing layer absorbing light that is not reflected by the specular reflector.27-. (canceled)8. The light diffusing optical construction of claim 1 , wherein the asymmetric optical diffuser comprises a plurality of elongated structures within a first material claim 1 , the elongated structures being generally oriented along the second direction.9. (canceled)10. The front projection screen of claim 1 , wherein gain curves of the asymmetric optical diffuser for two mutually ...

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Номер записи: 85
14-01-2008 дата публикации

METHOD OF MANUFACTURING COMPOSITE OPTICAL BODY CONTAINING INORGANIC FIBERS

Номер: KR1020080005543A
Автор: BENSON OLESTER JR., DETWILER NOREEN G., FLEMING PATRICK R., OUDERKIRK ANDREW J., THUNHORST KRISTIN L.
Принадлежит:

Optical bodies, for example optical films, are formed with inorganic fibers embedded within a polymer matrix. In some embodiments, the refractive indices of the inorganic fibers and the polymer matrix are matched. There need be no bonding agent between the fibers and the polymer matrix. The inorganic fibers may be glass fibers, ceramic fibers, or glass-ceramic fibers. A structure may be provided on the surface of the optical body, for example to provide optical power to light passing through the optical body. The body may be formed using a continuous process, with a continuous layer of the inorganic fibers being embedded within the matrix which is then solidified. © KIPO & WIPO 2008 ...

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Номер записи: 86
25-04-2001 дата публикации

CLEAR TO COLORED SECURITY FILM

Номер: KR20010034097A
Автор: JONZA JAMES M., OUDERKIRK ANDREW J., WEBER MICHAEL F.
Принадлежит:

A multilayer film including multiple polymeric layers designed and made to enable the film to reflect light in the near infrared (IR) portion of the visible spectrum. Depending on the amount and range of red light that is reflected, the film of the present invention appears under certain conditions to exihit a visible color, commonly cyan. The film appears to be substantially clear when viewed against a diffuse white background from approximately a zero degree observation angle, and appears to be cyan when viewed against that background from an observation angle that is greater than a predetermined shift angle. © KIPO & WIPO 2007 ...

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Номер записи: 87
12-03-2007 дата публикации

PHOSPHOR BASED ILLUMINATION SYSTEM HAVING A LONG PASS REFLECTOR AND METHOD OF MAKING SAME

Номер: KR1020070028603A
Автор: OUDERKIRK ANDREW J., WHEATLEY JOHN A., WEBER MICHAEL F., EPSTEIN KENNETH A., WATSON JAMES E.
Принадлежит:

An illumination system including a light source, a light guide including an output surface, emissive material positioned to receive light from the output surface of the light guide, and an interference reflector positioned such that the emissive material is between the output surface of the light guide and the interference reflector is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic. © KIPO & WIPO 2007 ...

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Номер записи: 88
07-06-2007 дата публикации

PHOSPHOR BASED ILLUMINATION SYSTEM HAVING A PLURALITY OF LIGHT GUIDES AND A DISPLAY USING SAME

Номер: US2007127262A1
Автор: SCHULTZ JOHN C, OUDERKIRK ANDREW J, SCHARDT CRAIG R, WHEATLEY JOHN A, WEBER MICHAEL F, EPSTEIN KENNETH A, WATSON JAMES E, SCHULTZ JOHN C., OUDERKIRK ANDREW J., SCHARDT CRAIG R., WHEATLEY JOHN A., WEBER MICHAEL F., EPSTEIN KENNETH A., WATSON JAMES E.
Принадлежит:

An illumination system including a light source, light guides coupled to the light source, each including an input surface and an output surface, emissive material positioned to receive light from at least one light guide, and an interference reflector positioned such that the emissive material is between the output surfaces of the light guides and the interference reflector is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.

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Номер записи: 89
04-11-2003 дата публикации

Signage having films to reduce power consumption and improve luminance uniformity and method for using same

Номер: US0006641880B1
Автор: Frank L. Deyak, Neal T. Strand, Ellen O. Aeling, Andrew J. Ouderkirk, Michael F. Weber, David G. Freier, DEYAK FRANK L, STRAND NEAL T, AELING ELLEN O, OUDERKIRK ANDREW J, WEBER MICHAEL F, FREIER DAVID G, DEYAK FRANK L., STRAND NEAL T., AELING ELLEN O., OUDERKIRK ANDREW J., WEBER MICHAEL F., FREIER DAVID G.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

A lighted sign housing is provided with a diffuse reflective film that is selected based on its reflectivity and luminance uniformity in order to reduce power consumption required for a given luminance while also increasing luminance uniformity. A method of using such film is also provided.

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Номер записи: 90
10-11-2011 дата публикации

COLOR COMBINER

Номер: US20110273770A1
Автор: Yarn Chee Poon, Andrew J. Ouderkirk, Philip E. Watson, Kim L. Tan, Xiaohui Cheng, POON YARN CHEE, OUDERKIRK ANDREW J, WATSON PHILIP E, TAN KIM L, CHENG XIAOHUI, OUDERKIRK ANDREW J., WATSON PHILIP E., TAN KIM L.
Принадлежит:

Optical elements, color combiners using the optical elements, and image projectors using the color combiners are described. The optical elements can be configured as color combiners that receive different wavelength spectrums of light and produce a combined light output that includes the different wavelength spectrums of light. In one aspect, the received light inputs are unpolarized, and the combined light output is polarized in a desired state. In one aspect, the received light inputs are unpolarized, and the combined light output is also unpolarized. The optical elements are configured to minimize the passage of light which may be damaging to wave-length-sensitive components in the light combiner. Image projectors using the color combiners can include imaging modules that operate by reflecting or transmitting polarized light.

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Номер записи: 91
20-10-2005 дата публикации

Anti-reflective thin film constructions

Номер: US2005233123A1
Автор: WEBER MICHAEL F, OUDERKIRK ANDREW J, WEBER MICHAEL F., OUDERKIRK ANDREW J.
Принадлежит:

A broadband anti-reflective thin film article is disclosed. The articles includes a base substrate having a substrate surface and a thin film polymeric multi-layer anti-reflectivity stack having a plurality of polymer layers. Each polymer layer having a thickness no greater than 1 micrometer. The substrate surface has a broadband reflectivity value. The thin film polymeric multi-layer anti-reflectivity stack is optically coupled to the substrate surface. The thin film polymeric multi-layer anti-reflectivity stack reduces the broadband reflectivity of the substrate surface by a factor of at least 2 at normal angles of incidence.

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Номер записи: 92
05-01-2006 дата публикации

Phosphor based illumination system having a long pass reflector and method of making same

Номер: US2006002678A1
Автор: WEBER MICHAEL F, WHEATLEY JOHN A, OUDERKIRK ANDREW J, EPSTEIN KENNETH A, WATSON JAMES E, WEBER MICHAEL F., WHEATLEY JOHN A., OUDERKIRK ANDREW J., EPSTEIN KENNETH A., WATSON JAMES E.
Принадлежит:

An illumination system including a light source, a light guide including an output surface, emissive material positioned to receive light from the output surface of the light guide, and an interference reflector positioned such that the emissive material is between the output surface of the light guide and the interference reflector is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.

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Номер записи: 93
25-04-2001 дата публикации

RETROREFLECTIVE DICHROIC REFLECTOR

Номер: KR20010034061A
Автор: BENSON OLESTER JR., WEBER MICHAEL F., WHEATLEY JOHN A., OUDERKIRK ANDREW J., FELLOWS BENJAMIN T., GARLAND WILSON C., WONG MEL Y.
Принадлежит:

Various combinations of retroreflective sheeting and multilayer polymeric reflective films are disclosed. The reflective film includes alternating layers of at least a first and second polymer, the alternating layers being configured to exhibit a high reflectance for light within a first spectral range and a low reflectance for light within a second spectral range. At least two of the alternating layers can have out-of-plane indices of refraction which differ by no more than 50 % of the maximum in-plane refractive index difference. The polymeric layers can define optical repeating units arranged in a sequence to have a specific thickness profile designed to give sharpened spectral transitions. The retroreflective layer preferably exhibits retroreflectance in all planes of incidence, but alternately it can be retroreflective in at least one plane of incidence but not in at least one other plane of incidence. © KIPO & WIPO 2007 ...

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Номер записи: 94
20-12-2006 дата публикации

DISPLAY INCLUDING A SOLID STATE LIGHT DEVICE AND METHOD USING SAME

Номер: KR1020060131805A
Автор: OUDERKIRK ANDREW J., MEIS MICHAEL A.
Принадлежит:

A display (800) includes a solid state light device (810) and a spatial light modulator (830) in optical communication with the solid state light device. The solid state light device includes an array of solid state radiation sources (812) to generate radiation, where each solid state radiation source includes a controllable radiation output. The solid state light device further includes an array of optical concentrators (814), where each optical concentrator receives radiation from a corresponding one of the array of solid state radiation sources. The solid state light device further includes a plurality of optical fibers (816), where each of the plurality of optical fibers includes an input end (818) that receives concentrated radiation from a corresponding optical concentrator. The spatial light modulator includes a plurality of controllable elements operable to modulate light from the solid state light device. © KIPO & WIPO 2007 ...

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Номер записи: 95
17-09-2002 дата публикации

Multilayer infrared reflecting optical body

Номер: US0006451414B1
Автор: John A. Wheatley, Andrew J. Ouderkirk, WHEATLEY JOHN A, OUDERKIRK ANDREW J, WHEATLEY JOHN A., OUDERKIRK ANDREW J.
Принадлежит: 3M Innovatives Properties Company, 3M INNOVATIVES PROPERTIES COMP, 3M INNOVATIVES PROPERTIES COMPANY

An optical body comprising (a) a dielectric multilayer film having a reflecting band positioned to reflect infrared radiation of at least one polarization at an incident angle normal to the film, the reflecting band having a short wavelength bandedge lambda0 and long wavelength bandedge lambdb0 at a normal incident angle, and a short wavelength bandedge lambdatheta and long wavelength bandedge lambdbtheta at a maximum usage angle theta, wherein lambdatheta is less than lambda0 and lambda0 is selectively positioned at a wavelength greater than about 700 nm; and (b) at least one component which at least partially absorbs or reflects radiation in the wavelength region between lambdatheta and lambda0 at a normal angle of incidence.

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Номер записи: 96
09-08-2005 дата публикации

Anti-reflective polymer constructions and method for producing same

Номер: US0006926952B1
Автор: Michael F. Weber, Andrew J. Ouderkirk, WEBER MICHAEL F, OUDERKIRK ANDREW J, WEBER MICHAEL F., OUDERKIRK ANDREW J.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

Articles, including free-standing films, comprising a base comprising a polymer layer having a major surface; and an anti-reflective stack optically coupled to the base that reduces the reflectivity of the base at over a first wavelength range of interest. The anti-reflective stack comprises alternating layers of (i) high index polymer; and (ii) low index polymer. Methods of making such articles are also provided.

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Номер записи: 97
04-12-2007 дата публикации

Illumination assembly using circuitized strips

Номер: US0007303315B2
Автор: Andrew J. Ouderkirk, Denny G. Aeschliman, Hung T. Tran, Kenneth A. Epstein, Michael A. Meis, John C. Schultz, OUDERKIRK ANDREW J, AESCHLIMAN DENNY G, TRAN HUNG T, EPSTEIN KENNETH A, MEIS MICHAEL A, SCHULTZ JOHN C, OUDERKIRK ANDREW J., AESCHLIMAN DENNY G., TRAN HUNG T., EPSTEIN KENNETH A., MEIS MICHAEL A., SCHULTZ JOHN C.
Принадлежит: 3M Innovative Properties Company, 3M INNOVATIVE PROPERTIES CO, 3M INNOVATIVE PROPERTIES COMPANY

An illumination assembly includes a heat dissipating member having a plurality of circuitized strips disposed thereon a spaced relationship. Each circuitized strip includes an electrically insulative substrate having at least one circuit trace on a first side of the substrate and an electrically and thermally conductive layer on a second side of the substrate, such that the at least one circuit trace is electrically insulated from the second side of the substrate. The circuitized strips have a plurality of vias extending from the first side to the second side of the substrate. A plurality of LEDs are disposed in the plurality of vias, such that each LEDs is disposed on the electrically and thermally conductive layer on the second side of the substrate and electrically connected to the at least one circuit trace on the first side of the substrate.

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Номер записи: 98
30-08-2007 дата публикации

UNIAXIALLY ORIENTED BIREFRINGENT ARTICLE HAVING A STRUCTURED SURFACE

Номер: KR1020070089200A
Автор: BIERNATH ROLF W., MERRILL WILLIAM WARD, OUDERKIRK ANDREW J., BENSON OLESTER JR., KOWITZ DAVID A., TARNOWSKI CATHERINE P., BROTT ROBERT L.
Принадлежит:

An article, such as a film, comprising a body portion and a surface portion is provided. The body portion has (i) a first and a second surface, and (ii) first and second in-plane axes that are orthogonal with respect to each other and a third axis that is mutually orthogonal to the first and second in-plane axis in a thickness direction of the body. The surface portion comprises a linear geometric feature disposed on the first surface of the body in a direction substantially parallel to the first in-plane axis of the polymeric body. The article has (i) a first index of refraction (n1) along the first in-plane axis, (ii) a second index of refraction (n2) along the second in-plane axis, and (iii) a third index of refraction (n3) along the third axis, wherein n2 and n3 are substantially the same but substantially different from n1; and wherein the uniaxially oriented polymeric film has a relative birefringence of 0.3 or less and wherein the ratio of the thickness of the body to the height ...

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Номер записи: 99
27-01-2006 дата публикации

VISIBLE WAVELENGTH DETECTOR SYSTEMS AND FILTERS THEREFOR

Номер: KR1020060008871A
Автор: HARADA TAKASHI, MIZUNO KAZUHIKO, WHEATLEY JOHN A., NEVITT TIMOTHY J., OUDERKIRK ANDREW J.
Принадлежит:

A visible wavelength detector and method of making the same is disclosed. A visible wavelength detector includes a semiconductor structure that converts electromagnetic energy into an electrical signal and an interference element that includes polymeric material and substantially reflects normally incident light over a band of near-infrared wavelengths and that substantially transmits normally incident light over visible wavelengths, disposed on the semiconductor structure. © KIPO & WIPO 2007 ...

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Номер записи: 100
03-05-2012 дата публикации

POST-FORMABLE MULTILAYER OPTICAL FILMS AND METHODS OF FORMING

Номер: US20120105957A1
Автор: BENSON, Jonza James M., JR. Olester, Keller Janet T., Merrill William W., OUDERKIRK Andrew J., Stumo Roger J., Weber Michael F.
Принадлежит:

Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are disclosed. The articles, methods and multilayer optical films of the present invention allow for post-forming of multilayer optical films including strain-induced index of refraction differentials while retaining the desired optical properties of the multilayer optical films. 1. An article comprising multilayer optical film comprising an optical stack comprising a plurality of layers , the layers comprising at least one birefringent polymer and at least one different polymer , wherein the optical stack comprises a strain-induced index of refraction differential along a first in-plane axis and substantially the entire optical stack reflects at least about 85% of light of desired wavelengths that is polarized along the first in-plane axis , and further wherein the thickness of the optical stack varies by at least about 10% or more.2. The article of claim 1 , wherein the thickness of the optical stack varies by at least about 20% or more.3. The article of claim 1 , wherein substantially the entire optical stack reflects at least about 90% of light of desired wavelengths that is polarized along the first in-plane axis.4. The article of claim 1 , wherein the optical stack further comprises a strain-induced index of refraction differential along a second in-plane axis that is perpendicular to the first in-plane axis.5. The article of claim 1 , wherein the optical stack further comprises a first major surface claim 1 , the first major surface comprising at least one depressed area formed thereon.6. The article of claim 1 , further comprising a rigid substrate attached to the multilayer optical film. This application is a continuation of U.S. patent application Ser. No. 12/391,738, ...

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Номер записи: 101
05-07-2012 дата публикации

LED PROJECTOR AND METHOD

Номер: US20120170002A1
Автор: Barnes Amy S., Davidson Robert S., Ong Sen Ching, OUDERKIRK Andrew J., Song Yifei, Thompson David S., Tio Andrew T.
Принадлежит:

A light emitting diode (LED) projector, an LED projector array, and a method of making the LED projector and LED projector array are provided. In general, an LED is disposed to inject light into an input aperture of a compound parabolic concentrator (CPC), disposed in a molded optical element. At least partially collimated light exits the output aperture of the CPC. The CPC has a portion of the surface free to expand and contract without degrading the performance of the LED projector. 1. A light emitting diode (LED) projector , comprising:a heat extraction substrate; an input aperture, an output aperture, and an inner surface defining a cavity;', 'an outer surface at least partially surrounding the inner surface, a portion of the outer surface in thermal contact with the heat extraction substrate;', 'a mold material filling a space between the inner surface and the outer surface; and, 'a molded optical element, comprisingan LED disposed to inject a light beam into the input aperture, wherein the injected light beam travels through the cavity and exits the output aperture as a partially collimated light beam.2. (canceled)3. (canceled)4. (canceled)5. The LED projector of claim 1 , wherein the cavity comprises a first polymeric material that is transparent to the light beam.6. The LED projector of claim 5 , wherein the mold material has a first coefficient of thermal expansion (CTE) that is smaller than a second CTE of the first polymeric material.7. The LED projector of claim 5 , wherein the first polymeric material comprises a silicone claim 5 , an epoxy claim 5 , an acrylate claim 5 , or a cyclo-olefin copolymer.8. The LED projector of claim 1 , wherein the mold material comprises a second polymer claim 1 , a metal claim 1 , or a ceramic.9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. The LED projector of claim 1 , wherein the cavity has a square compound parabolic concentrator (CPC) shape.17. An LED projection ...

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Номер записи: 102
07-03-2013 дата публикации

POLARIZED PROJECTION ILLUMINATOR

Номер: US20130057786A1
Автор: Cheng Xiaohui, OUDERKIRK Andrew J., Tan Kim Leong, Tio Andrew T., Watson Philip E., Yun Zhisheng
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as “fly-eye arrays” (FEA). The FEA is positioned to homogenize a polarized combined light after an unpolarized input light is converted to a single polarization state. 1. An optical element , comprising:a polarization converter disposed to accept an unpolarized light and output a polarized light;a first lenslet array having a first plurality of lenses disposed to accept the polarized light and output a convergent polarized light;a second lenslet array having a second plurality of lenses disposed to accept the convergent polarized light and output a divergent polarized light,wherein the first lenslet array and the second lenslet array are a monolithic array, and a polarized light ray coincident with the optical axis of a first lens of the first plurality of lenses is coincident with the optical axis of a second lens of the second plurality of lenses.2. The optical element of claim 1 , wherein the monolithic array comprises a glass claim 1 , a plastic claim 1 , or a silicone.3. The optical element of claim 1 , wherein the monolithic array comprises a birefringence less than about 30 nm at a nominal wavelength of 550 nm.4. The optical element of claim 1 , wherein the polarized light ray comprises a first polarization light ray and a second orthogonal polarization light ray having equal optical path lengths.5. The optical element of claim 1 , wherein the focal point of each of the first plurality of lenses is positioned at a first principle plane of the second plurality of lenses.6. The optical element of claim 1 , wherein the monolithic array further comprises a polymer film disposed between the first plurality of lenses and the second plurality of lenses.7. The optical ...

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Номер записи: 103
14-03-2013 дата публикации

COMPACT ILLUMINATOR

Номер: US20130063671A1
Автор: OUDERKIRK Andrew J., Tan Kim Leong, Tio Andrew T., Yun Zhisheng
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as “fly-eye arrays” (FEA). The FEA is positioned to homogenize an unpolarized combined light before the light is converted to a single polarization state. 1. An optical element , comprising:a first lenslet array having a first plurality of lenses disposed to accept an unpolarized light and output a convergent unpolarized light;a second lenslet array having a second plurality of lenses disposed to accept the convergent unpolarized light and output a divergent unpolarized light; anda polarization converter disposed to accept the divergent unpolarized light and output a polarized light,wherein the first lenslet array and the second lenslet array are a monolithic array, and an unpolarized light ray coincident with the optical axis of a first lens of the first plurality of lenses is coincident with the optical axis of a second lens of the second plurality of lenses.2. The optical element of claim 1 , wherein the monolithic array comprises a glass claim 1 , a polymer claim 1 , or a silicone.3. The optical element of claim 1 , wherein the monolithic array comprises a polymeric material having a birefringence of less than about 50 nm at a nominal wavelength of 550 nm.4. The optical element of claim 1 , wherein the unpolarized light ray is split into a first polarized light ray and a second polarized light ray having equal optical path lengths through the polarization converter.5. The optical element of claim 1 , wherein the monolithic array has a thickness between about 2 mm and about 10 mm.6. The optical element of claim 1 , wherein the focal point of each of the first plurality of lenses is positioned at a first principle plane of the second plurality of lenses.7. The ...

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Номер записи: 104
14-03-2013 дата публикации

FLY EYE INTEGRATOR POLARIZATION CONVERTER

Номер: US20130063701A1
Автор: Cheng Xiaohui, OUDERKIRK Andrew J., Tan Kim Leong, Yun Zhisheng
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as “fly-eye arrays” (FEA). A first FEA is positioned to intercept and converge an unpolarized combined light before the light is converted to a single polarization state, and a second FEA is positioned to intercept and diverge the converted light having a single polarization state. 1. An optical element , comprising:a first lenslet array having a first plurality of lenses disposed to accept an unpolarized light and output a convergent unpolarized light;a polarization converter disposed to accept the convergent unpolarized light and output a convergent polarized light; anda second lenslet array having a second plurality of lenses disposed to accept the convergent polarized light and output a divergent polarized light,wherein an unpolarized light ray coincident with the optical axis of a first lens of the first plurality of lenses passes through the polarization converter and becomes a first polarized light ray and a second polarized light ray, andfurther wherein the first polarized light ray is coincident with the optical axis of a second lens of the second plurality of lenses, and the second polarized light ray is coincident with the optical axis of a third lens of the second plurality of lenses.2. The optical element of claim 1 , wherein a first cross-sectional area of the first lenslet array is ½ of a second cross-sectional area of the second lenslet array.3. The optical element of claim 1 , wherein the second plurality of lenses comprises twice as many lenses as the first plurality of lenses.4. The optical element of claim 1 , wherein the first polarized light ray and the second polarized light ray comprise equal optical path lengths.5. The optical element of claim ...

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Номер записи: 105
23-05-2013 дата публикации

Backlight And Display System Using Same

Номер: US20130128549A1
Автор: Andrew J. Ouderkirk, Craig R. Schardt, David G. Freier, Edward J. Kivel, John A. Wheatley, Kristopher J. Derks, Michael F. Weber, Myron K. Jordan, Rolf W. Biernath, Timothy J. Hebrink, Timothy J. Nevitt, William J. Bryan, Zhaohui Yang
Принадлежит: 3M Innovative Properties Co

A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane.

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Номер записи: 106
04-07-2013 дата публикации

TILTED DICHROIC COLOR COMBINER II

Номер: US20130169893A1
Автор: Cheng Xiaohui, OUDERKIRK Andrew J., Yun Zhisheng
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The disclosure generally relates to color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed color combiners include a tilted dichroic plate having at least two reflectors configured with light collection optics to combine at least two colors of light. 1. A color combiner , comprising:a first light collection optics having a light input surface and an optical axis;a first and a second light source disposed to inject a first and a second color light into the light input surface, at least one of the first and second light sources displaced from the optical axis; and a first dichroic reflector capable of reflecting the first color light and transmitting other color light; and', 'a second reflector capable of reflecting the second color light,, 'a dichroic plate disposed facing the first light collection optics opposite the light input surface and disposed at a tilt angle to the optical axis, the dichroic plate includingwherein the first dichroic reflector and the second reflector are each tilted such that the first and the second color light are both reflected in an output direction, the first and the second color light forming a combined color light beam.2. The color combiner of claim 1 , wherein the first light collection optics comprises light collimation optics.3. The color combiner of claim 2 , wherein the light collimation optics comprises a one lens design claim 2 , a two lens design claim 2 , a diffractive optical element claim 2 , or a combination thereof.4. The color combiner of claim 1 , wherein the first light collection optics comprises:a first lens having a first convex surface opposite the light input surface; anda second lens having a second surface facing the first convex surface, and a third convex surface opposite the second surface.5. The color combiner of claim 1 , wherein each of the first and second color light include a first divergence angle claim 1 , and the combined ...

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Номер записи: 107
04-07-2013 дата публикации

TILTED PLATE NORMAL INCIDENCE COLOR COMBINER WITH A POLARIZING BEAM SPLITTER

Номер: US20130169894A1
Автор: Cheng Xiaohui, OUDERKIRK Andrew J., Yun Zhisheng
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The disclosure generally relates to color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed color combiners include at least two tilted dichroic plates having at least two reflectors configured with light collection optics to combine at least two colors of light. 1. A color combiner , comprising:a light collection optics having a light input surface and an optical axis;a first and a second light source disposed to inject a first and a second color light into the light input surface, at least one of the first and second light sources displaced from the optical axis;a first face of a polarizing beam splitter (PBS) facing the light collection optics and opposite the light input surface, the PBS including a reflective polarizer disposed at a polarizer angle to the optical axis;a first dichroic plate disposed facing a second face of the PBS opposite the light collection optics, the first dichroic plate disposed at a first tilt angle to the optical axis;a second dichroic plate disposed facing a third face of the PBS, the second dichroic plate disposed at a second tilt angle to the optical axis; anda first and a second retarder disposed between the PBS and the first and second dichroic plates, respectively,wherein each of the first and second dichroic plates include a first dichroic reflector capable of reflecting the first color light and transmitting other color light and a second reflector capable of reflecting the second color light, and furtherwherein the first dichroic reflector and the second reflector are each tilted such that the first and the second color light beam exit the PBS in an output direction as a collimated combined color light beam.2. The color combiner of claim 1 , wherein the light collection optics comprises light collimation optics.3. The color combiner of claim 2 , wherein the light collimation optics comprises a one lens design claim 2 , a two lens design claim 2 , a ...

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Номер записи: 108
04-07-2013 дата публикации

TILTED DICHROIC COLOR COMBINER I

Номер: US20130169937A1
Автор: Cheng Xiaohui, OUDERKIRK Andrew J., Yun Zhisheng
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The disclosure generally relates to color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed color combiners include a tilted dichroic plate having at least two reflectors configured with light collection optics to combine at least two colors of light. 1. A color combiner , comprising:a first light collection optics having a first light input surface and an optical axis;a first and a second light source, each displaced from the optical axis and disposed to inject a first and a second color light into the first light input surface; and a first dichroic reflector capable of reflecting the first color light and transmitting other color light; and', 'a second reflector capable of reflecting the second color light,, 'a dichroic plate disposed facing the first light collection optics opposite the first light input surface, the dichroic plate includingwherein the first dichroic reflector and the second reflector are each tilted such that the first and the second color light are both reflected to exit through the first light input surface along the optical axis, as a combined color light beam.2. The color combiner of claim 1 , wherein the first light collection optics comprises light collimation optics.3. The color combiner of claim 2 , wherein the light collimation optics comprises a one lens design claim 2 , a two lens design claim 2 , a diffractive optical element claim 2 , or a combination thereof.4. The color combiner of claim 1 , wherein the first light collection optics comprises:a first lens having a first convex surface opposite the first light input surface; anda second lens having a second surface facing the first convex surface, and a third convex surface opposite the second surface.5. The color combiner of claim 1 , wherein each of the first and second color light include a first divergence angle claim 1 , and the combined color light beam includes a second divergence angle that varies ...

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Номер записи: 109
15-08-2013 дата публикации

ILLUMINATION CONVERTER

Номер: US20130208498A1
Автор: OUDERKIRK Andrew J.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The disclosure generally relates to illumination converters that are capable of converting light from one geometrical format to another. In particular, the described illumination converters are capable of converting a circular source such as an LED to a linear source useful in an edgelit waveguide, which can be used in a backlight for a display. 1. An illumination converter , comprising: a central axis about which the visible-light transparent film is wound;', 'a light input surface perpendicular to the central axis, the light input surface comprising a first edge of the visible-light transparent film;', 'a reflective surface comprising a second edge of the visible-light transparent film disposed at a 45 degree angle to the first edge of the visible-light transparent film;', 'a light output region parallel to the central axis; and, 'a spiral-wound portion of a visible-light transparent film havinga planar portion of the visible-light transparent film extending tangentially from the spiral-wound portion of the visible-light transparent film to a light output edge of the visible-light transparent film.2. The illumination converter of claim 1 , wherein the light output edge of the visible-light transparent film is parallel to the central axis.3. The illumination converter of claim 1 , wherein the spiral-wound portion further comprises a gap between adjacent layers of the spiral-wound portion such that total internal reflection (TIR) can occur within the visible-light transparent film.4. The illumination converter of claim 3 , wherein the gap comprises air or a material having a lower index of refraction than the visible-light transparent film.5. The illumination converter of claim 1 , wherein the reflective surface comprises a polished surface capable of supporting TIR.6. The illumination converter of claim 1 , wherein the reflective surface comprises a metalized surface reflector claim 1 , a dielectric multilayer reflector claim 1 , or a combination thereof.7. The ...

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Номер записи: 110
22-08-2013 дата публикации

FLEXIBLE LED DEVICE WITH WIRE BOND FREE DIE

Номер: US20130213697A1
Автор: Foo Siang Sin, Jesudoss Arokiaraj, Mooney Justine A., Narag Alejandro Aldrin Il Agcaoili, OUDERKIRK Andrew J., Palaniswamy Ravi, Tan Fong Liang
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

An article includes a flexible polymeric dielectric layer having first and second major surfaces. The first major surface has a conductive layer thereon and at least one cavity therein. The at least one cavity contains a conductive material including electrically separated first and second portions supporting and electrically connecting a light emitting semiconductor device to the conductive layer on the first major surface. 1. An article comprising:a flexible polymeric dielectric layer having first and second major surfaces, the first major surface having a conductive layer thereon and having at least one cavity therein, the at least one cavity containing a conductive material including electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer on the first major surface.2. The article of claim 1 , wherein the conductive material in the cavity is electrically insulated from the second major surface.3. The article of claim 1 , wherein the second major surface has a conductive layer thereon.4. The article of claim 3 , wherein the conductive material in the cavity is electrically connected to the conductive layer on the second major surface.5. The article of claim 1 , wherein the at least one cavity is at least 25% filled with conductive material.6. The article of claim 1 , wherein the top surface of the at least one cavity is reflective.7. The article of claim 1 , wherein the top surface of the at least one cavity comprises a reflective material applied over at least a portion of the conductive material in the at least one cavity.8. The article of claim 1 , wherein the distance between the bottom of the at least one cavity and the second major surface is about 5% to about 75% of the thickness of the dielectric layer.9. The article of claim 1 , wherein the floor of the cavity comprises a dielectric coating disposed at the bottom of the at least one cavity to electrically ...

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Номер записи: 111
22-08-2013 дата публикации

METHOD OF FORMING A LIGHTING SYSTEM

Номер: US20130213929A1
Автор: BENSON, BINDER Erin A., GABRIEL Nicholas T., GUPTA Shrey, HUNG Huang Chin, INGHAM Kelly Reed, JR. Olester, OUDERKIRK Andrew J., RAIDER Wesley A.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A method of forming a lighting system comprises providing a cavity having at least a first array of first optical elements and a second array of second optical elements that have a different shape than the first array, filling the cavity with a curable resin, applying a secondary optical element to the curable resin in alignment with the first optical array, curing the resin to form a cured assembly, and removing the cured assembly from the cavity. 1. A method of forming a lighting system , comprising:providing a cavity having at least a first array of first optical elements and a second array of second optical elements that have a different shape than the first array;filling the cavity with a curable resin;applying a secondary optical element to the curable resin in alignment with the first optical array;curing the resin to form a cured assembly; andremoving the cured assembly from the cavity.2. The method of claim 1 , further comprising applying a molding tool to a same side of the first array as is the secondary optical element.3. The method of claim 1 , wherein the method is a continuous process.4. The method of claim 1 , wherein the method is a batch process.5. The method of claim 1 , wherein the cavity comprises a depressed area formed in a mold having a molding surface.6. The method of claim 5 , further comprising applying a release agent to the molding surface.7. The method of claim 6 , wherein the release agent comprises at least one of a diamond like coating claim 6 , silicone claim 6 , acrylate claim 6 , fluoropolymer claim 6 , and a vapor deposited material.8. The method according to claim 1 , wherein the curable resin is applied by at least one of dip coating claim 1 , wire bar coating claim 1 , doctor blade coating claim 1 , ink jet coating claim 1 , roll coating claim 1 , and silk screen coating.9. The method according to claim 1 , wherein the curable resin comprises at least one of acrylates claim 1 , silicones claim 1 , epoxies claim 1 , esters ...

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Номер записи: 112
22-08-2013 дата публикации

Optical light guide coupler

Номер: US20130216182A1
Автор: Andrew J. Ouderkirk
Принадлежит: 3M Innovative Properties Co

An optical light guide coupler for coupling at least two light guides comprises an input face and an output face, wherein the optical light guide coupler is configured to receive light from a first light guide having a stepped output profile and is configured to transmit that light to a second light guide having a non-stepped profile. The input face of the light guide coupler is registered to the stepped output profile of the first light guide and the output face of the light guide coupler is at least one of rectilinear and curved.

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Номер записи: 113
12-09-2013 дата публикации

ELECTRONIC DISPLAY INCLUDING AN OBSCURING LAYER AND METHOD OF MAKING SAME

Номер: US20130235515A1
Автор: Busman Stanley C., Charles Scott B., OUDERKIRK Andrew J.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

An electronic display () is provided that includes a display panel () having an image—forming region, a substantially clear photocured bonding layer () which is the reaction product of a first photocurable resin system disposed upon the image—forming region, an obscuring layer () in proximity to at least a portion of the substantially clear photocurable bonding layer, and a substantially transparent outer panel () in contact with at least a portion of the obscuring layer. The bonding layer () is disposed partially beneath the obscuring layer (). The obscuring layer has an average light transmission of less than about 5% in the wavelength range of 420 nm to 700 nm and a light transmission of greater than about 5% in the wavelength range of 300 to 400 nm. Also provided is a method for making the electronic display. 2. An electronic display according to claim 1 , wherein the image-forming region is part of a liquid crystal display device claim 1 , a cathode-ray tube display device claim 1 , a light-emitting diode display device claim 1 , or a combination thereof.3. An electronic display according to claim 1 , wherein the first photocurable resin system comprises a photoinitiator having an absorption band in the 200 nm to 400 nm wavelength range.4. An electronic display according to claim 3 , wherein the first photocurable resin system comprises acrylates.5. An electronic display according to claim 1 , wherein the obscuring layer comprises the reaction product of a second photocurable resin system.6. An electronic display according to claim 5 , wherein the second photocurable resin system comprises at least one pigment or dye.7. An electronic display according to claim 6 , wherein the second photocurable resin system comprises a nickel oxide or a magnesium-doped cobalt phosphate-doped pigment.8. An electronic display according to claim 1 , wherein the obscuring layer comprises a multi-layer optical stack.9. A resin system comprising:a substantially transparent ...

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Номер записи: 114
26-09-2013 дата публикации

LED COLOR COMBINER

Номер: US20130250570A1
Автор: Cheng Xiaohui, Jesudoss Arokiaraj, OUDERKIRK Andrew J., Palaniswamy Ravi, Poon Yarn Chee, Yun Zhisheng
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A light source combines colored light from different LED sources to provide white light output. Multiple LEDs emitting light at different peak wavelengths may be disposed on a flexible substrate, the LEDs being close to an aperture formed in the substrate. Multiple mirrors, including at least one dichroic mirror, are oriented to reflect light from the multiple LEDs into the aperture. The flexible substrate includes a dielectric layer having a cavity region and an adjacent neighboring region that is thicker than the cavity region. The aperture and the multiple LEDs are all disposed in the cavity region of the dielectric layer. An integrating rod may be coupled to the aperture to receive the reflected light from the multiple LEDs. 1. A light source , comprising:a flexible substrate having an aperture;a first and second LED disposed on the substrate, the first and second LEDs adapted to emit light at different first and second peak wavelengths respectively; anda plurality of mirrors oriented to reflect the light from the first and second LEDs into the aperture, the plurality of mirrors including at least one dichroic mirror;wherein the flexible substrate includes a dielectric layer having a cavity region and an adjacent neighboring region that is thicker than the cavity region; andwherein the aperture, the first LED, and the second LED are all disposed in the cavity region.2. The source of claim 1 , further comprising:a third LED disposed on the substrate, the third LED adapted to emit light at a third peak wavelength different from the first and second peak wavelengths;wherein the plurality of mirrors are also oriented to reflect the light from the third LED into the aperture.3. The source of claim 2 , wherein the light from the first claim 2 , second claim 2 , and third LEDs that is reflected into the aperture combines to form a white light output of the light source.4. The source of claim 1 , further comprising:collimation optics configured to collimate light from ...

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Номер записи: 115
10-10-2013 дата публикации

REMOTE PHOSPHOR LED DEVICE WITH BROADBAND OUTPUT AND CONTROLLABLE COLOR

Номер: US20130264947A1
Автор: GABRIEL Nicholas T., Jesudoss Arokiaraj, OUDERKIRK Andrew J., Palaniswamy Ravi
Принадлежит:

A broadband light source includes a phosphor layer excited by light from multiple LEDs. A dichroic reflector reflects light from the LEDs onto the phosphor layer. First and second LEDs are responsible for first and second broadband portions respectively of a broadband output light of the source, each such broadband portion being broadband and nominally white. The device components are configured and arranged so that the first and second broadband light portions have different CIE color coordinates. These portions combine to yield a resultant color for the overall broadband light output of the source, which resultant color is a func tion of the relative amounts of the first and second broadband light portions. An open-loop or closed-loop controller can independently drive the LEDs to provide a desired mix of the broadband light portions so that the overall broadband light output has a color in a desired design space. 1. A light source for emitting broadband output light , comprising:a first and second LED adapted to emit first and second LED light respectively;a layer of phosphor material adapted to emit first longer wavelength phosphor light in response to excitation from light emitted by the first LED and second longer wavelength phosphor light in response to excitation from light emitted by the second LED; anda dichroic reflector configured to reflect at least a portion of the first LED light, and at least a portion of the second LED light, onto the layer of phosphor material in such a way that as light propagates from the first and second LEDs to the dichroic reflector it does not pass through the layer of phosphor material, the dichroic reflector substantially transmitting light at the first and second longer wavelengths so that such transmitted first and second longer wavelength phosphor light is included in the broadband output light of the light source;wherein the first longer wavelength phosphor light and optionally a remaining portion of the first LED light ...

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Номер записи: 116
17-10-2013 дата публикации

Remote phosphor led constructions

Номер: US20130270587A1
Автор: Andrew J. Ouderkirk, Arokiaraj Jesudoss, Ravi Palaniswamy
Принадлежит: 3M Innovative Properties Co

A white light source includes a short wavelength LED and a phosphor layer that emits light at longer visible wavelengths. A dichroic reflector transmits the longer wavelength light, and reflects some LED light onto the phosphor such that as light travels from the LED to the dichroic reflector it does not pass through the phosphor. The LED may emit blue light, and the dichroic reflector may transmit a second portion of the LED light, such that the light source output light includes both the second portion of the LED light and the longer wavelength phosphor light. The LED may be mounted on a flexible substrate having a cavity region and neighboring region, the LED being mounted in the cavity region. A dielectric layer may be thinner in the cavity region than in the neighboring region, or a hole may extend completely through the dielectric layer in the cavity region.

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Номер записи: 117
24-10-2013 дата публикации

PHOSPHOR REFLECTOR ASSEMBLY FOR REMOTE PHOSPHOR LED DEVICE

Номер: US20130279151A1
Автор: GABRIEL Nicholas T., OUDERKIRK Andrew J.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Phosphor assemblies include a phosphor layer and a broadband reflector attached to the phosphor layer. The phosphor assembly can be combined with a short wavelength (e.g. blue) emitting LED and other optional components to provide a remote phosphor lighting system. At least some LED light passes through the phosphor layer before reaching the broadband reflector. The broadband reflector provides high reflectivity for both the LED light and the longer wavelength phosphor light. The degree of transparency or of transmission of the phosphor layer to LED light can be tailored to increase the broadband light output of the lighting system. Such increase can actually be achieved by decreasing the amount of phosphor used in the phosphor layer. The single pass transmission T of the phosphor layer to the LED light may be from 30 to 65%, and the reflectivity of the broadband reflector may be at least 90, 94, or 98%. 1. An assembly for use in a remote phosphor LED device in which the assembly is illuminated with LED light having an emission peak in a range from 400 to 500 nm , the assembly comprising:a phosphor layer configured to absorb a portion of the LED light and emit phosphor light in response to the absorbed LED light; anda broadband reflector attached to the phosphor layer;wherein the broadband reflector has a reflectivity of at least 90% for the LED light and for the phosphor light; andwherein the phosphor layer has a phosphor concentration and physical thickness tailored to provide a single pass transmission of the LED light through the phosphor layer of T, where T is in a range from 30 to 65%.2. The assembly of claim 1 , wherein the assembly is die-cuttable.3. The assembly of claim 1 , wherein the broadband reflector attaches directly to the phosphor layer.4. The assembly of claim 1 , wherein the broadband reflector attaches to the phosphor layer through one or more intermediate layers.5. The assembly of claim 1 , further comprising an adhesive layer attached to the ...

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Номер записи: 118
07-11-2013 дата публикации

FLEXIBLE LED DEVICE AND METHOD OF MAKING

Номер: US20130294471A1
Автор: Gao Jian Xia, Jesudoss Arokiaraj, Kreutter Nathan P., Mooney Justine A., Narag Alejandro Aldrin II Agcaoili, Nie Qihong, OUDERKIRK Andrew J., Palaniswamy Ravi, Tan Fong Liang, White James R.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Provided is a flexible light emitting semiconductor device, such as an LED device, that includes a flexible dielectric layer having first and second major surfaces with a conductive layer on the first major surface and at least one cavity in the first major surface with a conductive layer in the cavity that supports a light emitting semiconductor device. The conductive layer in the cavity is electrically isolated from the second major surface of the dielectric layer. 1. A flexible article comprising:a flexible polymeric dielectric layer having first and second major surfaces, the first surface having a first conductive layer thereon and having at least one cavity therein, the second major surface optionally having a second conductive layer thereon, the at least one cavity defined by one or more walls and a floor, the at least one cavity having a third conductive layer on at least a portion of its walls and floor; the third conductive layer configured to directly or indirectly support a light emitting semiconductor device,wherein the first conductive layer is electrically conductive and the second and third conductive layers are thermally conductive, andwherein there is no direct connection between the second major surface of the dielectric layer and the third conductive layer.2. The article of wherein the third conductive layer is electrically conductive and is electrically connected to the first conductive layer.3. The article of wherein the first electrically conductive layer comprises a circuit.4. The article of wherein the second major surface has a second conductive layer thereon.5. The article of wherein the second conductive layer is electrically conductive and comprises an electrical circuit.6. The article of wherein the second conductive layer comprises a thermally conductive adhesive.71. The article of wherein the first major surface of the dielectric layer has an array of cavities therein and at least a portion of the cavities are configured to support ...

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Номер записи: 119
05-12-2013 дата публикации

FLEXIBLE LIGHT EMITTING SEMICONDUCTOR DEVICE

Номер: US20130320390A1
Автор: Foo Siang Sin, II Alejandro Aldrin Agcaoili, Jesudoss Arokiaraj, Mooney Justine A., Narag, OUDERKIRK Andrew J., Palaniswamy Ravi, Pee Wei Meng, Tan Fong Liang
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A flexible polymeric dielectric layer has first and second major surfaces. The first major surface has a conductive layer thereon. The dielectric layer has at least one via extending from the second major surface to the first major surface. The conductive layer includes electrically separated first and second portions configured to support and electrically connect a light emitting semi-conductor device to the conductive layer. 1. An article comprising:a flexible polymeric dielectric layer having first and second major surfaces, at least one of the first and second major surfaces having a conductive layer thereon, wherein when the first major surface has a conductive layer thereon, the dielectric layer has at least one via extending from the second major surface to the first major surface, and the conductive layer includes electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer, and wherein when the first and second major surfaces each have a conductive layer thereon, the second major surface has at least one cavity therein, the at least one cavity contains a conductive material that is electrically connected to the conductive layer on the second major surface, and the conductive layer on the first major surface includes electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer on the first major surface.2. (canceled)3. The article of further comprising a thermal interface material disposed in the at least one via or cavity.4. The article of further comprising a light emitting semiconductor device supported and electrically connected to the conductive layer on the first major surface by the first and second portions.5. The article of claim 1 , wherein the first and second portions of the conductive layer on the first major surface are electrically separated by a gap ...

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Номер записи: 120
19-12-2013 дата публикации

Refractive polarization converter and polarized color combiner

Номер: US20130335708A1
Автор: Andrew J. Ouderkirk
Принадлежит: 3M Innovative Properties Co

The disclosure generally relates to refractive polarization converters, polarized color combiners using the refractive polarization converters, and in particular polarized color combiners using the refractive polarization converters that can be useful in small size format projectors such as pocket projectors. The disclosed refractive polarization converters include at least one birefringent prism that can separate an unpolarized light beam into divergent polarized light beams having orthogonal polarization directions.

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Номер записи: 121
09-01-2014 дата публикации

THIN HOLLOW BACKLIGHTS WITH BENEFICIAL DESIGN CHARACTERISTICS

Номер: US20140009963A1
Автор: Biernath Rolf W., Derks Kristopher J., Freier David G., Hebrink Timothy J., Hoyle Charles D., Nevitt Timothy J., OUDERKIRK Andrew J., Weber Michael F., Wheatley John A.
Принадлежит:

A front and back reflector are arranged to form a hollow light recycling cavity having an output region, and one or more light sources (e.g. LEDs) are disposed to emit light into the cavity. In one aspect, the back reflector has a design characterized by a first and second parameter. The first design parameter is a ratio of the collective emitting area of the light sources Aemit to the area of the output region Aout, and Aemit/Aout is preferably from 0.0001 to 0.1. The second design parameter is SEP/H, where H is the depth of the recycling cavity, and SEP is an average plan view source separation associated with the light sources. Other aspects of the disclosed extended area light sources are also described. 1. An edge-lit backlight , comprising:a front and back reflector forming a hollow light recycling cavity having a cavity depth H and an output region of area Aout; andone or more light sources disposed proximate a periphery of the backlight to emit light into the light recycling cavity, the light sources having an average plan view source separation of SEP and collectively having an active emitting area Aemit;wherein a first parameter equals Aemit/Aout;wherein a second parameter equals SEP/H;{'sup': f', 'b', 'f', 'b, 'sub': hemi', 'hemi', 'hemi', 'hemi, 'wherein the backlight is characterized by the first parameter being in a range from 0.0001 to 0.1, and by the second parameter being in a range from 3 to 10; and wherein the front reflector has a hemispherical reflectivity for unpolarized visible light of R, and the back reflector has a hemispherical reflectivity for unpolarized visible light of R, and (1−R)/(1−R) is at least 10.'}2. The backlight of claim 1 , wherein the one or more light sources comprise one or more LEDs.3. The backlight of claim 1 , wherein R*Ris at least 0.70.4. The backlight of claim 3 , wherein R*Ris at least 0.80.5. The backlight of claim 1 , wherein the backlight exhibits a VESA 9 uniformity value of at least 50% over the output region.6 ...

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Номер записи: 122
06-02-2014 дата публикации

FLEXIBLE LED DEVICE FOR THERMAL MANAGEMENT AND METHOD OF MAKING

Номер: US20140036461A1
Автор: Gao Jian Xia, Jesudoss Arokiaraj, Kreutter Nathan P, Mooney Justine A, Narag Alejandro Aldrin II Agcaoili, Nie Qihong, Ouderkirk Andrew J, Palaniswamy Ravi, Tan Fong Liang, White James R
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Provided is a flexible light emitting semiconductor device (), such as an LED device, that includes a flexible dielectric layer () having first and second major surfaces and at least one via () extending through the dielectric layer from the first to the second major surface, with a conductive layer () on each of the first and second major surfaces and in the via. The conductive layer () in the via supports a light emitting semiconductor device () and is electrically isolated from the conductive layer () on the first major surface of the dielectric layer. 1. An article comprising:a flexible polymeric dielectric layer having first and second major surfaces, the dielectric layer having an array of vias extending from the first major surface to the second major surface, the first major surface having a first conductive layer thereon and the second major surface having a second conductive layer thereon, the vias being defined by walls comprising the dielectric material and the second conductive layer covering the via opening in the second major surface, at least one via having a third conductive layer on at least a portion of its walls and on at least a portion of the second conductive layer covering the via opening in the second major surface; the third conductive layer configured to directly or indirectly support a light emitting semiconductor device,wherein the first conductive layer is electrically conductive and the second and third conductive layers are thermally conductive, andwherein the third conductive layer provides no direct electrical connection between the first and the second conductive layers.2. The article of wherein the first conductive layer is electrically and thermally conductive.3. The article of wherein the second conductive layer is thermally and electrically conductive.4. The article of wherein the third conductive layer is thermally and electrically conductive.51. The article of wherein the third conductive layer comprises a portion of the ...

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Номер записи: 123
13-03-2014 дата публикации

RECYCLING BACKLIGHTS WITH SEMI-SPECULAR COMPONENTS

Номер: US20140071658A1
Автор: Benoit Gilles J., Biernath Rolf W., Freier David G., Hoyle Charles D., Nevitt Timothy J., OUDERKIRK Andrew J., Weber Michael F., Wheatley John A., Yang Zhaohui
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A recycling cavity such as used in a backlight or similar extended area source includes a front and back reflector, the front reflector being partially transmissive to provide an output illumination area. The recycling cavity also includes a component that provides the cavity with a balance of specular and diffuse characteristics so as to balance cavity efficiency and brightness uniformity over the output area. The component can be characterized by a transport ratio of greater than 15% for a 15 degree incidence angle, and less than 95% for a 45 degree incidence angle. 1. A backlight , comprising:a front and back reflector forming a hollow light recycling cavity, the front reflector being partially transmissive to provide an output illumination area, and wherein the front reflector has a reflectivity for p-polarized light that is: (1) constant, or (2) increases, with angle of incidence, and a transmission that generally decreases with angle of incidence;a component that provides the cavity with a desired balance of specular and diffuse characteristics, the component being characterized by a transport ratio greater than 15% at a 15 degree incidence angle and less than 95% at a 45 degree incidence angle, wherein the front or back reflectors can be or include the component, or the component can be distinct from the front and back reflectors; andone or more light source members disposed to emit light into the light recycling cavity over a limited angular distribution.2. The backlight of claim 1 , wherein the front reflector has a hemispherical reflectivity for unpolarized visible light of R claim 1 , the back reflector has a hemispherical reflectivity for unpolarized visible light of R claim 1 , and Ris greater than R.3. The backlight of claim 2 , wherein Ris greater than about 0.95.4. The backlight of claim 1 , wherein the output illumination area defines a transverse plane claim 1 , and the light source members emit light into the light recycling cavity with a full ...

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Номер записи: 124
05-01-2017 дата публикации

POLARIZING BEAM SPLITTER AND METHODS OF MAKING SAME

Номер: US20170003514A1
Автор: Carls Joseph C., Charles Scott B., Murray Cameron T., OUDERKIRK Andrew J.
Принадлежит:

Polarizing beam splitter is disclosed. The polarizing beam splitter includes a first polymeric prism, a second polymeric prism, a reflective polarizer that is disposed between and adhered to a hypotenuse of each of the first and second polymeric prisms, and a hardcoat that is disposed on each of the first and second polymeric prisms. The polarizing beam splitter includes an input major surface and an output major surface. At least one of the input and output major surfaces has a pencil hardness of at least 3 H. The polarizing beam splitter has a low birefringence such that when polarized light having a first polarization state enters the optical element from the input major surface and travels through at least 2 mm of the polarizing beam splitter and exits the polarizing beam splitter from the output major surface, at least 95% of light exiting the polarizing beam splitter is polarized has the first polarization state. 1. A polarizing beam splitter comprising a reflective polarizer disposed between and adhered to first and second polymeric prisms , the reflective polarizer substantially reflecting polarized light having a first polarization state and substantially transmitting polarized light having an opposite second polarization state , at least an outer major surface of the polarizing beam splitter having a pencil hardness of at least 3 H , such that when a polarized light having a polarization state enters the polarizing beam splitter and travels through at least 2 mm of the polarizing beam splitter and exits the polarizing beam splitter , at least 95% of light exiting the polarizing beam splitter is polarized having the polarization state.2. The polarizing beam splitter of claim 1 , wherein each of the first and second polymeric prisms is a right angle prism.3. The polarizing beam splitter of claim 1 , wherein the reflective polarizer comprises a multilayer optical film reflective polarizer.4. The polarizing beam splitter of claim 1 , wherein when polarized ...

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Номер записи: 125
07-01-2016 дата публикации

ASSYMETRIC INPUT LIGHTGUIDE

Номер: US20160003997A1
Автор: OUDERKIRK Andrew J.
Принадлежит:

The disclosure generally relates to illumination converters that are capable of converting light from one geometrical format to another. In particular, the described illumination converters are capable of converting one or more circular sources aligned adjacent each other, such as LED source(s) arranged in a line, to a linear source useful in an edgelit waveguide, which can be used in a backlight for a display. 1. An illumination converter , comprising: a central plane having a width, about which the visible-light transparent film is wound;', 'a light input surface perpendicular to the central plane, the light input surface comprising a first edge of the visible-light transparent film;', 'a reflective surface comprising a second edge of the visible-light transparent film disposed at a 45 degree angle to the first edge of the visible-light transparent film;', 'a light output region parallel to the central plane; and, 'a spiral-wound portion of a visible-light transparent film havinga planar portion of the visible-light transparent film extending tangentially from the spiral-wound portion of the visible-light transparent film to a light output edge of the visible-light transparent film.2. The illumination converter of claim 1 , wherein the visible-light transparent film is selected from a polymeric film claim 1 , a glass film claim 1 , and a combination thereof.3. The illumination converter of claim 1 , wherein the light output edge of the visible-light transparent film is parallel to the central plane.4. The illumination converter of claim 1 , wherein the spiral-wound portion further comprises a gap between adjacent layers of the spiral-wound portion such that total internal reflection (TIR) can occur within the visible-light transparent film.5. The illumination converter of claim 4 , wherein the gap comprises air or a material having a lower index of refraction than the visible-light transparent film.6. The illumination converter of claim 1 , wherein the reflective ...

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Номер записи: 126
04-01-2018 дата публикации

LIGHT GUIDE ARTICLES AND METHODS OF MAKING

Номер: US20180003892A1
Автор: OUDERKIRK Andrew J.
Принадлежит:

Foldable and folded light guide articles are described. Foldable light guide articles include a backing, a light guide disposed upon the backing and a prism disposed upon the backing adjacent to the light guide such that when the backing is folded about an axis between the prism and the light guide, a side of the prism is positioned adjacent to and aligned with an end of the light guide. Folded light guide articles include a light guide, a first prism and a second prism. The first prism is disposed adjacent to and aligned with an end of the light guide. The second prism is disposed adjacent to and aligned with the first prism with a low-index material separating the first prism and the second prism. 1. An article comprising:a backing;a first light guide disposed upon the backing;a first prism disposed upon the backing adjacent the first light guide such that when the backing is folded about a first axis between the first prism and the first light guide, a first side of the first prism is positioned adjacent to and aligned with an end of the first light guide.2. The article of claim 1 , wherein the first prism has a substantially right triangular cross-section and wherein a hypotenuse of the first prism is disposed adjacent the backing.3. The article of claim 1 , further comprising a second prism disposed upon the backing adjacent the first prism opposite the first light guide such that when the backing is folded about a second axis between the first prism and the second prism claim 1 , a first side of the second prism is positioned adjacent to and aligned with a second side of the first prism.4. The article of claim 3 , wherein each of the first and second prisms have substantially right triangular cross-sections and wherein a hypotenuse of the first prism is disposed adjacent the backing and a hypotenuse of the second prism is disposed adjacent the backing.5. The article of claim 3 , further comprising a second light guide disposed upon the backing adjacent the ...

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Номер записи: 127
13-01-2022 дата публикации

OPTICAL SYSTEM

Номер: US20220011557A1
Автор: Benoit Gilles J., Etter Jo A., Le John D., McDowell Erin A., OUDERKIRK Andrew J., Steiner Michael L., Wong Timothy L., Yun Zhisheng
Принадлежит:

An optical system including one or more optical lenses, at least one retarder layer, a reflective polarizer, and a partial reflector is provided. The at least one retarder layer may include first and second retarder layers having different wavelength dispersion curves. The at least one retarder layer may include a first retarder layer having a non-uniform fast axis orientation and/or a non-uniform retardance. 1. An optical system for displaying an object to a viewer , comprising:one or more optical lenses having at least one curved major surface;a reflective polarizer disposed on and conforming to a first major surface of the one or more optical lenses, the reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having an orthogonal second polarization state;a partial reflector disposed on and conforming to a different second major surface of the one or more optical lenses, the partial reflector having an average optical reflectance of at least 20%;a first retarder layer disposed on and conforming to a third major surface of the one or more optical lenses; anda second retarder layer disposed on and conforming to a fourth major surface, different than the third major surface, of the one or more optical lenses, such that relative to the first polarization state, the first retarder has a substantially uniform orientation and uniform retardance across the first retarder layer, and the second retarder layer has a substantially non-uniform retardance and non-uniform orientation across the second retarder layer.2. The optical system of claim 1 , wherein the first retarder layer has a first wavelength dispersion curve and the second retarder layer has a different second wavelength dispersion curve.3. The optical system of claim 1 , wherein the first retarder layer comprises a first spin-coated retarder layer having a smaller average first physical thickness and the second retarder layer comprises a second ...

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Номер записи: 128
03-01-2019 дата публикации

POLARIZING BEAM SPLITTING SYSTEM

Номер: US20190004327A1
Автор: BOHANNON KANDYCE M., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A polarizing beam splitting system is described. The polarizing beam splitting system may include first and second prisms where the volume of the first prism is no greater than half the volume of the second prism. The first prism includes first and second surfaces and a light source may be disposed adjacent the first surface and an image forming device may be disposed adjacent the second surface. The first prism has a first hypotenuse and the second prism has a second hypotenuse. A reflective polarizer is disposed between the first and second hypotenuses. 1. A polarizing beam splitting system comprising:a reflective polarizer, a first face;', 'a second face adjacent the first face, an angle between the first and second faces substantially equal to 90 degrees; and', 'a first hypotenuse opposite the angle;, 'a first prism having a first volume and comprisinga light source disposed adjacent the first face;an image forming device disposed adjacent the second face; anda second prism having a second volume, the second prism a right triangular prism having third and fourth faces and having a second hypotenuse, the second hypotenuse disposed adjacent the first hypotenuse, the first the first and second hypotenuses having substantially equal surface areas, the third face opposite the first face and substantially parallel with the first face, the fourth face opposite the second face and substantially parallel with the second face;wherein the reflective polarizer is disposed between the first and second hypotenuses, and wherein the first volume is no greater than half the second volume.2. The polarizing beam splitting system of claim 1 , wherein the first face has a largest area that is less than half of a largest area of the third face and that is less than half a largest area of the fourth face.3. The polarizing beam splitting system of claim 1 , wherein the second face has a largest area that is less than half of a largest area of the third face and that is less than half ...

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Номер записи: 129
17-01-2019 дата публикации

EDGE CURE FOR DISPLAY ASSEMBLIES HAVING A MASKED TRANSPARENT ADHESIVE

Номер: US20190016105A1
Автор: OUDERKIRK Andrew J.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A technique for producing a bonded display assembly uses actinic radiation from a series of discrete LEDs, and an anamorphic optical system. The display assembly comprises a cover glass, a display housing, and an initially uncured adhesive layer. A peripheral mask lies between the adhesive layer and the cover glass, such that corresponding peripheral portions of the adhesive layer are masked from direct illumination through the cover glass. Actinic light from the LEDs is injected into a first masked portion of the adhesive layer through an adhesive edge, after such light passes through or is otherwise redirected by the anamorphic optical system. The anamorphic optical system, such as one or more cylindrical lenses, is configured such that the redirected light (a) spreads out along the adhesive edge, and (b) is focused onto the adhesive edge in a reference plane perpendicular to the adhesive edge. 1. A method of bonding a cover glass to a display housing to provide a bonded display assembly , the method comprising:providing a light source arrangement including a first series of discrete LEDs; is initially uncured,', 'includes a first masked portion covered by the peripheral mask, and an unmasked portion, and', 'terminates to form a first adhesive edge proximate the first masked portion;, 'providing an assembly comprising the cover glass, the display housing, an adhesive layer therebetween, and a peripheral mask between the cover glass and the adhesive layer, wherein the adhesive layerproviding a first anamorphic optical system proximate the first series of discrete LEDs to receive light from the first series of discrete LEDs and to redirect the received light to (a) spread out along the first adhesive edge, and (b) focus the received light onto the first adhesive edge in a first reference plane perpendicular to the first adhesive edge; andenergizing the first series of discrete LEDs so that light from the first series of discrete LEDs, after being redirected by the ...

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Номер записи: 130
17-01-2019 дата публикации

OPTICAL SYSTEM

Номер: US20190018235A1
Автор: Etter Jo A., Jennings Robert M., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

An optical system including at least a first lens, a partial reflector and a reflective polarizer is described. The optical system has an optical axis such that a light ray propagating along the optical axis passes through the first lens the partial reflector and the reflective polarizer without being substantially refracted. At least one major surface of the optical system is rotationally asymmetric about the optical axis. A major surface of the optical system may have a first portion defined by a first equation and a second portion adjacent the first portion defined by a different equation. The first lens may have a contoured edge adapted to be placed adjacent an eye of a viewer and substantially conform to the viewer's face. 117-. (canceled)19. The optical system of claim 18 , wherein the film has a film axis aligned in a predetermined way with a major axis of the lens substrate.20. The optical system of claim 19 , wherein the film is a reflective polarizer and the film axis is a pass axis or a block axis of the reflective polarizer.21. The optical system of claim 20 , further comprising a display emitting an image for viewing by an eye of a viewer claim 20 , wherein a first image ray emitted by the display propagating along the optical axis passes through the lens claim 20 , the partial reflector and the reflective polarizer without being substantially refracted and passes through a pupil of the eye of the viewer claim 20 , andat least one second image ray emitted by the display and making a first oblique angle with the optical axis, passes through the lens, the partial reflector, the reflective polarizer, and passes through the pupil of the eye of the viewer, such that a straight line coincident with the at least one second image ray intersects a facial feature of the viewer at an intersection point, the display disposed between the intersection point and the eye of the viewer.22. The optical system of claim 18 , wherein the lens has a principle axis claim 18 , ...

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Номер записи: 131
29-01-2015 дата публикации

ANAMORPHIC LIGHT GUIDE

Номер: US20150029754A1
Автор: INGHAM Kelly Reed, Jesudoss Arokiaraj, Lee Justina Sze Ying, OUDERKIRK Andrew J., Palaniswamy Ravi
Принадлежит:

A backlight system for a display is described. The system can include an anamorphic light guide that comprises a light receiving portion, a light diverting portion, and a light output portion. The light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least an order of magnitude. The light input face is substantially perpendicular to light output face. The etendue of the light is substantially preserved. 1. An anamorphic light guide , comprising:a light receiving portion;a light diverting portion; anda light output portion, wherein the light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least a factor of four, and wherein the light input face is substantially perpendicular to light output face.2. The anamorphic light guide of claim 1 , wherein light entering the input face has an aspect ratio of about from about 1 to 1 to about 1 to 4 and the light exiting the output face has an aspect ratio of at least 1 to 50.3. The anamorphic light guide of claim 1 , wherein the light diverting portion comprises an array of spatially separated diverting elements.4. The anamorphic light guide of claim 3 , wherein each diverting element comprises a substantially reflecting facet that substantially reflects light from the light receiving portion towards the light output portion.57-. (canceled)8. The anamorphic light guide of claim 3 , wherein each spatially separated diverting element has an upper major surface and a lower major surface bounded by a lower index material.9. The anamorphic light guide of claim 1 , wherein the light diverting portion comprises a plurality of curved planar channels ...

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Номер записи: 132
08-02-2018 дата публикации

OPTICAL SYSTEM AND MAGNIFYING DEVICE

Номер: US20180039004A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

An optical system and a magnifying device including the optical system are described. The optical system includes an exit pupil, a reflective polarizer proximate the exit pupil, a partial reflector disposed adjacent the reflective polarizer opposite the exit pupil, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector. The reflective polarizer is curved about two orthogonal axes and the partial reflector is spaced apart from the reflective polarizer. 2. A magnifying device comprising the optical system of .3. The magnifying device of further comprising an objective portion and an eyepiece portion.4. The magnifying device of claim 3 , wherein the objective portion comprises the reflective polarizer claim 3 , the partial reflector and the quarter wave retarder.5. The magnifying device of claim 3 , wherein the eyepiece portion comprises the optical system.6. The magnifying device of being binoculars claim 2 , a telescope or a microscope.7. The optical system of further comprising a first optical stack claim 1 , the first optical stack including a first lens and the partial reflector.8. The optical system of further comprising a second optical stack claim 7 , the second optical stack including a second lens and the reflective polarizer.9. The optical system of further comprising an integral optical stack claim 1 , the integral optical stack comprising a first optical lens claim 1 , the reflective polarizer claim 1 , the partial reflector and the quarter wave retarder.10. The optical system of claim 9 , wherein the integral optical stack further comprises a second optical lens adjacent the first optical lens claim 9 , the quarter wave retarder disposed between the first and second optical lenses claim 9 , the partial reflector disposed on a major surface of the first optical lens opposite the second optical lens claim 9 , and the reflective polarizer disposed on a major surface of the second optical lens opposite the first ...

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Номер записи: 133
18-02-2016 дата публикации

Flexible led device with wire bond free die

Номер: US20160049567A1
Автор: Alejandro Aldrin Ii Agcaoili Narag, Andrew J. Ouderkirk, Arokiaraj Jesudoss, Fong Liang Tan, Justine A. Mooney, Ravi Palaniswamy, Siang Sin Foo
Принадлежит: 3M Innovative Properties Co

An article includes a flexible polymeric dielectric layer having first and second major surfaces. The first major surface has a conductive layer thereon and at least one cavity therein. The at least one cavity contains a conductive material including electrically separated first and second portions supporting and electrically connecting a light emitting semiconductor device to the conductive layer on the first major surface.

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Номер записи: 134
01-03-2018 дата публикации

HEAD-MOUNTED DISPLAY

Номер: US20180059296A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A head-mounted display including a first optical system is provided. The first optical system includes an image surface, a stop surface, a first optical stack disposed between the image surface and the stop surface and a second optical stack disposed between the first optical stack and the stop surface. The first optical stack includes a first optical lens and a partial reflector. The second optical stack includes a second optical lens and a curved multilayer reflective polarizer. A quarter wave retarder is disposed between the multilayer reflective polarizer and the partial reflector. The multilayer reflective polarizer and the partial reflector may be convex toward the image surface along orthogonal first and second axes. 1. A head-mounted display comprising a first optical system , the first optical system comprising:a first image surface;a first stop surface; a first optical lens; and', 'a first partial reflector having an average optical reflectance of at least 30% in a desired plurality of wavelengths; and, 'a first optical stack disposed between the first image surface and the first stop surface, the first optical stack comprising a second optical lens; and', {'b': 1', '1', '1', '1, 'a first multilayer reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state, the first multilayer reflective polarizer curved about orthogonal first and second axes and having at least one location having a radial distance, r, from an optical axis passing through an apex of the first multilayer reflective polarizer and a displacement, s, from a plane perpendicular to the optical axis at the apex, s/r being at least 0.1 and less than 0.8; and'}], 'a second optical stack disposed between the first optical stack and the first stop surface, the second optical stack comprisinga first quarter wave retarder disposed between the first multilayer reflective polarizer and the ...

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Номер записи: 135
01-03-2018 дата публикации

VIEWING DEVICE

Номер: US20180059423A1
Автор: OUDERKIRK Andrew J., Powers Max
Принадлежит:

A viewing device is disclosed. The device includes a projector that projects a first imaged light, and a polarizing beam splitter plate that receives the projected first imaged light from the projector and reflects the received first imaged light for viewing by a viewer. The polarizing beam splitter plate also receives a second image and transmits the second image for viewing by the viewer. The polarizing beam splitter plate includes a substrate and a multilayer optical film reflective polarizer that is adhered to the substrate. The reflective polarizer substantially reflects polarized light having a first polarization state and substantially transmits polarized light having a second polarization state perpendicular to the first polarization state. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface. The polarizing beam splitter plate reflects the received first imaged light towards the viewer with the reflected first imaged light having an effective pixel resolution of less than 12 microns. 1. A polarizing beam splitter (PBS) comprising a multilayer polymeric optical film reflective polarizer adhered to a first substrate , the first substrate comprising opposing major surfaces making an angle of less than about 20 degrees with each other , wherein when the PBS receives a first image , the multilayer polymeric optical film reflective polarizer reflects the first image with the reflected first image having an effective pixel resolution of less than 12 microns.2. The PBS of claim 1 , wherein the multilayer polymeric optical film reflective polarizer has a surface roughness Ra of less than 45 nm.3. The PBS of claim 1 , wherein the multilayer polymeric optical film reflective polarizer has a surface roughness Rq of less than 80 nm.4. The PBS of being flat.5. The PBS of being curved.6. The PBS of claim 1 , wherein ...

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Номер записи: 136
01-03-2018 дата публикации

PARTICLES HAVING VARYING REFRACTIVE INDEX

Номер: US20180059501A1
Автор: Brott Robert L., Crandall Michael D., Erdogan-Haug Belma, Everaerts Albert I., Lundquist Jenna M., OUDERKIRK Andrew J., Sherman Audrey A., Sitter Brett J., Song Zhipeng
Принадлежит:

Particles having a first region and a second region surrounding the first region where the second region includes a copolymer extending across a thickness of the second region are described. The volume of the second region is at least 75 percent of the volume of the particle. The particles have a composition and a refractive index that each vary across the thickness of the second region. 1. A particle having a first region and a second region surrounding the first region , wherein a volume of the second region is at least 75 percent of a total volume of the particle , wherein the second region comprises a copolymer extending across a thickness of the second region , and wherein the particle has a composition and a refractive index that each varies across the thickness of the second region.2. The particle of claim 1 , wherein a difference between a maximum refractive index in the second region and a minimum refractive index in the second region is at least 0.05.3. The particle of claim 1 , wherein the composition and the refractive index each varies continuously across the thickness of the second region4. The particle of claim 3 , wherein an absolute value of a derivative of the refractive index with respect to a radial coordinate monotonically increases with increasing radial coordinate across at least 80 percent of the thickness of the second region.5. The particle of claim 1 , wherein the second region comprises a plurality of mutually concentric layers claim 1 , each layer having a substantially constant refractive index claim 1 , wherein adjacent layers have different refractive indices.6. The particle of claim 5 , further comprising transition regions between adjacent layers claim 5 ,wherein each of the transition regions have a continuously varying refractive index and a thickness less than about ⅓ of a minimum thickness of the immediately adjacent layers.7. A composition comprising:a substantially transparent matrix having a first refractive index; and{'claim ...

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Номер записи: 137
09-03-2017 дата публикации

OPTICAL STACK AND OPTICAL SYSTEM

Номер: US20170068029A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

Integral optical stacks and optical systems including an image surface, a stop surface and an integral optical stack disposed between the image surface and the stop surface are described. The integral optical stack includes an optical lens, a partial reflector, a multilayer reflective polarizer and a quarter wave retarder. At least one chief light ray transmitted through the stop surface and the image surface passes through the stop surface at an incident angle of at least 40 degrees. 23-. (canceled)4. The optical system of claim 1 , wherein an image source comprises the image surface and the stop surface is an exit pupil.5. The optical system of claim 1 , wherein an image recorder comprises the image surface and the stop surface is an entrance pupil.6. The optical system of further comprising a second quarter wave retarder at at least one wavelength in the pre-determined plurality of wavelengths claim 1 , the second quarter wave retarder disposed between the partial reflector and the image surface claim 1 , the first quarter wave retarder disposed between the multilayer reflective polarizer and the partial reflector.7. The optical system of claim 1 , wherein the partial reflector is a second reflective polarizer.8. The optical system of claim 1 , wherein the pre-determined plurality of wavelengths is a visible range of wavelengths from 400 nm to 700 nm.9. The optical system of claim 1 , wherein the partial reflector is a notch reflector.10. The optical system of claim 9 , wherein the pre-determined plurality of wavelengths comprises one or more continuous wavelength ranges claim 9 , and wherein at least one of the continuous wavelength ranges has a full width at half maximum of no more than 100 nm.11. The optical system of claim 1 , wherein the multilayer reflective polarizer has at least one first location having a radial distance claim 1 , r1 claim 1 , from an optical axis passing through an apex of the multilayer reflective polarizer claim 1 , and a displacement ...

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Номер записи: 138
09-03-2017 дата публикации

THERMOFORMED MULTILAYER REFLECTIVE POLARIZER

Номер: US20170068030A1
Автор: Ambur Gregg A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A thermoformed multilayer reflective polarizer substantially rotationally symmetric about an optical axis passing thorough an apex of the thermoformed multilayer reflective polarizer and convex along orthogonal first and second axes orthogonal to the optical axis is described. The thermoformed multilayer reflective polarizer has at least one first location having a radial distance r1 from the optical axis and a displacement s1 from a plane perpendicular to the optical axis at the apex, where s1/r1 is at least 0.2. The thermoformed multilayer reflective polarizer may have at least one inner layer substantially optically uniaxial at at least one first location away from the apex. For an area of the reflective polarizer defined by s1 and r1, a maximum variation of a transmission axis of the reflective polarizer may be less than about 2 degrees. 1. A thermoformed multilayer reflective polarizer substantially rotationally symmetric about an optical axis passing thorough an apex of the thermoformed multilayer reflective polarizer and convex along orthogonal first and second axes orthogonal to the optical axis , the thermoformed multilayer reflective polarizer having:at least one inner layer substantially optically uniaxial at at least one first location away from the apex; andat least one first location on the reflective polarizer having a radial distance, r1, from the optical axis and a displacement, s1, from a plane perpendicular to the optical axis at the apex, s1/r1 being at least 0.2.2. The thermoformed multilayer reflective polarizer of claim 1 , wherein for an area of the reflective polarizer defined by s1 and r1 claim 1 , a maximum variation of a transmission axis of the reflective polarizer is less than about 2 degrees.3. The optical system of claim 2 , wherein the maximum variation of the transmission axis of the reflective polarizer is less than about 1.5 degrees.4. The optical system of claim 1 , wherein a maximum variation of a transmission axis of the ...

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Номер записи: 139
09-03-2017 дата публикации

BEAM EXPANDER WITH A CURVED REFLECTIVE POLARIZER

Номер: US20170068096A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A beam expander including a partial reflector, a reflective polarizer curved about two orthogonal axes and a quarter wave retarder disposed between the reflective polarizer and the partial reflector is described. The beam expander is adapted to receive an input light beam incident on the partial reflector and transmit an expanded output light beam. Illuminators and projection systems including the beam expander are described. 1. A beam expander comprising:a partial reflector having a having an average optical reflectance of at least 30% in a pre-determined plurality of wavelengths;a reflective polarizer disposed adjacent to and spaced apart from the partial reflector, the reflective polarizer curved about two orthogonal axes; anda quarter wave retarder disposed between the reflective polarizer and the partial reflector,wherein the beam expander is adapted to receive an input light beam incident on the partial reflector and transmit an expanded output light beam,wherein the reflective polarizer comprises at least one layer substantially optically biaxial at at least one first location on the at least one layer away from the optical axis and substantially optically uniaxial at at least one second location away from the optical axis, wherein substantially any chief light ray in the input light beam is incident of the reflective polarizer at an angle of incidence of less than 30 degrees.2. The beam expander of claim 1 , wherein at least one first location on the reflective polarizer has a radial distance r1 from an optical axis of the reflective polarizer and a displacement s1 from a plane perpendicular to the optical axis at an apex of the reflective polarizer claim 1 , s1/r1 being at least 0.1.3. (canceled)4. The beam expander of claim 1 , wherein the reflective polarizer is a thermoformed substantially uniaxially oriented multilayer optical film.5. The beam expander of claim 1 , wherein the reflective polarizer is a thermoformed multilayer reflective polarizer ...

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Номер записи: 140
09-03-2017 дата публикации

Optical system

Номер: US20170068099A1
Автор: Andrew J. Ouderkirk, Erin A. McDOWELL, Gregg A. Ambur, Timothy L. Wong, Zhisheng Yun
Принадлежит: 3M Innovative Properties Co

Optical systems including an image surface, a stop surface, a partial reflector disposed between the image surface and the stop surface, a reflective polarizer disposed between the stop surface and the partial reflector, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector are described. The reflective polarizer is convex along two orthogonal axes. The reflective polarizer may be a thermoformed multilayer reflective polarizer.

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Номер записи: 141
09-03-2017 дата публикации

OPTICAL SYSTEM

Номер: US20170068100A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

Optical systems including an image surface, a stop surface, a partial reflector disposed between the image surface and the stop surface, a reflective polarizer disposed between the stop surface and the partial reflector, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector are described. The reflective polarizer is convex along two orthogonal axes. The reflective polarizer may be a thermoformed multilayer reflective polarizer. 1. An optical system , comprising:an image surface;a stop surface; a first optical lens; and', 'a partial reflector having an average optical reflectance of at least 30% in a desired plurality of wavelengths; and, 'a first optical stack disposed between the image surface and the stop surface and convex toward the image surface along orthogonal first and second axes, the first optical stack comprising a second optical lens;', 'a multilayer reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state; and', 'a first quarter wave retarder disposed between the reflective polarizer and the first optical stack,', 'wherein the multilayer reflective polarizer comprises at least one layer that is substantially optically biaxial at at least one first location on the at least one layer away from an optical axis of the second optical stack and substantially optically uniaxial at at least one second location away from the optical axis, the at least one layer at the at least one second location having a first refractive index in a thickness direction, a second refractive index in a second direction orthogonal to the thickness direction, and a third refractive index in a third direction orthogonal to the thickness direction and to the second direction, an absolute value of a difference in the first and second refractive indices being less than 0.02, an absolute value of a difference in the second and third ...

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Номер записи: 142
09-03-2017 дата публикации

OPTICAL SYSTEM

Номер: US20170068101A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

Optical systems including an image surface and a stop surface are described. First second and third optical lenses, a partial reflector, a multilayer reflective polarizer and a quarter wave retarder are disposed between the image surface and the stop surface. A plurality of major surfaces are disposed between the image surface and the stop surface with each major surface convex toward the image surface along orthogonal first and second axes. At least six different major surfaces have six different convexities. 1. An optical system , comprising:an image surface;a substantially planar stop surface; and first, second and third optical lenses;', 'a partial reflector having an average optical reflectance of at least 30% in a pre-determined plurality of wavelengths;', 'a multilayer reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state; and', 'a first quarter wave retarder at at least one wavelength in the pre-determined plurality of wavelengths,, 'disposed between the image surface and the stop surfacewherein the optical system comprises a plurality of major surfaces disposed between the image surface and the stop surface, each major surface convex toward the image surface along orthogonal first and second axes, wherein at least six different major surfaces have six different convexities, andwherein the multilayer reflective polarizer has at least one first location having a radial distance, r1, from an optical axis passing through an apex of the multilayer reflective polarizer and a displacement, s1, from a plane perpendicular to the optical axis at the apex, s1/r1 being at least 0.2, and wherein for an area of the reflective polarizer defined by s1 and r1, a maximum variation of a transmission axis of the reflective polarizer is less than about 2 degrees.2. The optical system of claim 1 , wherein the plurality of major surfaces includes opposing first and ...

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Номер записи: 143
09-03-2017 дата публикации

OPTICAL SYSTEM

Номер: US20170068102A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

Optical systems including first and second optical stacks and adapted to provide an adjustable dioptric correction are described. The first optical stack includes a first optical lens and a partial reflector. The second optical stack is convex along orthogonal first and second axes and includes a second optical lens and a reflective polarizer. The reflective polarizer has at least one first location having a radial distance r1 from an optical axis of the second optical stack and a displacement s1 from a plane perpendicular to the optical axis at an apex of the reflective polarizer, where s1/r1 is at least 0.1. A quarter wave retarder is disposed between the second optical stack and the first optical stack. 2. The optical system of claim 1 , wherein the adjustable dioptric correction is provided by one or more of an adjustable distance between the first and second optical stacks claim 1 , an adjustable shape of the first optical stack claim 1 , and an adjustable shape of the second optical stack.3. The optical system of claim 2 , wherein the adjustable dioptric correction is provided claim 2 , at least in part claim 2 , by an adjustable distance between the first and second optical stacks.4. The optical system of claim 2 , wherein the adjustable dioptric correction is provided claim 2 , at least in part claim 2 , by an adjustable shape of the first optical stack.5. The optical system of claim 2 , wherein the adjustable dioptric correction is provided claim 2 , at least in part claim 2 , by an adjustable shape of the second optical stack.6. The optical system of claim 1 , wherein the optical system is adapted to electronically adjust the dioptric correction.7. The optical system of claim 1 , wherein the reflective polarizer comprises at least one layer substantially optically biaxial at at least one first location on the at least one layer away from the optical axis and substantially optically uniaxial at at least one second location away from the optical axis.8. The ...

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Номер записи: 144
09-03-2017 дата публикации

CAMERA

Номер: US20170068104A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A camera including an aperture, an image recording device, a reflective polarizer disposed between the aperture and the image recording device, a partial reflector disposed between the reflective polarizer and the image recording device, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector. The reflective polarizer is curved about two orthogonal axes. 1. A camera comprising:an aperture;an image recording device;a reflective polarizer disposed between the aperture and the image recording device, the reflective polarizer curved about two orthogonal axes;a partial reflector disposed between the reflective polarizer and the image recording device, the partial reflector having an average optical reflectance of at least 30% in a pre-determined plurality of wavelengths for all polarizations of light; anda quarter wave retarder disposed between the reflective polarizer and the partial reflector.2. The camera of further comprising a first optical stack claim 1 , the first optical stack including a first lens and the partial reflector.3. The camera of further comprising a second optical stack claim 2 , the second optical stack including a second lens and the reflective polarizer.4. The camera of further comprising an integral optical stack claim 1 , the integral optical stack comprising a first optical lens claim 1 , the reflective polarizer claim 1 , the partial reflector and the quarter wave retarder.5. The camera of claim 4 , wherein the integral optical stack further comprises a second optical lens adjacent the first optical lens claim 4 , the quarter wave retarder disposed between the first and second optical lenses claim 4 , the partial reflector disposed on a major surface of the first optical lens opposite the second optical lens claim 4 , and the reflective polarizer disposed on a major surface of the second optical lens opposite the first optical lens.61111. The camera of claim 1 , wherein at least one first location on the ...

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Номер записи: 145
09-03-2017 дата публикации

MAGNIFYING DEVICE

Номер: US20170068105A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A magnifying device including an optical system is described. The optical system includes an exit pupil, a reflective polarizer proximate the exit pupil, a partial reflector disposed adjacent the reflective polarizer opposite the exit pupil, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector. The reflective polarizer is curved about two orthogonal axes and the partial reflector is spaced apart from the reflective polarizer. 1. A magnifying device comprising an optical system , the optical system comprising:an exit pupil;a reflective polarizer proximate the exit pupil, the reflective polarizer curved about two orthogonal axes;a partial reflector disposed adjacent the reflective polarizer opposite the exit pupil, the partial reflector spaced apart from the reflective polarizer; the partial reflector having an average optical reflectance of at least 30% in a pre-determined plurality of wavelengths; anda quarter wave retarder disposed between the reflective polarizer and the partial reflector,wherein the reflective polarizer comprises at least one layer substantially optically biaxial at at least one first location on the at least one layer away from the optical axis and substantially optically uniaxial at at least one second location away from the optical axis, the at least one layer at the at least one second location having a first refractive index in a thickness direction, a second refractive index in a second direction orthogonal to the thickness direction, and a third refractive index in a third direction orthogonal to the thickness direction and to the second direction, an absolute value of a difference in the first and second refractive indices being less than 0.02, an absolute value of a difference in the second and third refractive indices being greater than 0.05, andwherein substantially any chief ray that passes through the optical system is incident on the reflective polarizer at an angle of incidence less than ...

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Номер записи: 146
15-03-2018 дата публикации

LENS WITH EMBEDDED MULTILAYER OPTICAL FILM FOR NEAR-EYE DISPLAY SYSTEMS

Номер: US20180074331A1
Автор: BINDER Erin A., OUDERKIRK Andrew J.
Принадлежит:

A lens is formed from at least two sections or bodies that are shaped to mate with each other, and a multilayer optical film is sandwiched between these two sections. Smooth surfaces of each section combine to provide a first optical surface of the lens, e.g., a concave, convex, or flat optical surface. The multilayer optical film includes a stack of polymer layers configured to selectively reflect light by constructive or destructive interference, at least some of the polymer layers being birefringent. The multilayer optical film may thus be or comprise e.g. a reflective polarizer and/or a narrow band or otherwise notched reflector. The multilayer optical film has an extended terminus that separates the smooth surfaces of the two sections. Any edge defects such as cracks or delaminations that may exist along the extended terminus are characterized by an average defect distance of no more than 100 or 50 microns. 1. An optical system comprising:a lens comprising opposing first and second major surfaces; anda multilayer reflective polarizer embedded in the lens and extending between the first and second major surfaces, the multilayer reflective polarizer separating the first major surface into adjacent first and second surface portions of the first major surface, and separating the second major surface into adjacent first and second surface portions of the second major surface.2. The optical system of claim 1 , wherein the multilayer reflective polarizer separates the lens into two sections.3. The optical system of claim 1 , wherein the lens further comprises a circumferential surface extending between and connecting the first and second major surfaces of the lens.4. The optical system of claim 3 , wherein the multilayer reflective polarizer extends from a first side of the circumferential surface on a first lateral side of the lens to an opposite second side of the circumferential surface on an opposite second lateral side of the lens.5. The optical system of claim 1 ...

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Номер записи: 147
15-03-2018 дата публикации

POLARIZING BEAM SPLITTER PLATES PROVIDING HIGH RESOLUTION IMAGES AND SYSTEMS UTILIZING SUCH POLARIZING BEAM SPLITTER PLATES

Номер: US20180074339A1
Автор: Carls Joseph C., OUDERKIRK Andrew J.
Принадлежит:

Polarizing beam splitter plates and systems incorporating such beam splitter plates are described. The polarizing beam splitter plate includes a first substrate and a multilayer optical film reflective polarizer that is disposed on the first substrate. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface. The polarizing beam splitter plate is adapted to reflect an imaged light received from an imager towards a viewer or screen with the reflected imaged light having an effective pixel resolution of less than 12 microns. 1. A method , comprising:providing a multilayer optical film;providing a temporary substrate coated with an aqueous solution;releasably attaching a first surface of the multilayer optical film to the aqueous solution side of the temporary substrate;providing a permanent substrate;attaching a second surface of the multilayer optical film to the permanent substrate; andremoving the multilayer optical film from the temporary flat substrate.2. The method of further comprising the step of evaporating the aqueous solution after releasably attaching the first surface of the multilayer optical film to the aqueous solution side of the temporary substrate and before removing the multilayer optical film from the temporary substrate.3. The method of claim 1 , wherein the permanent substrate comprises a first outermost major surface and an opposing second outermost major surface making an angle of less than about 20 degrees with the first outermost major surface.4. The method of claim 1 , wherein the temporary substrate is flat. This application is related to the pending U.S. Patent Application Ser. No. 61/564,161, “Polarizing Beam Splitters Providing High Resolution Images and Systems Utilizing Such Beam Splitters”, (Attorney Docket No. 67895US002), filed Nov. 28, 2011; and the pending U.S. Patent ...

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Номер записи: 148
26-03-2015 дата публикации

REMOTE PHOSPHOR LED CONSTRUCTIONS

Номер: US20150084500A1
Автор: Jesudoss Arokiaraj, OUDERKIRK Andrew J., Palaniswamy Ravi
Принадлежит:

A white light source includes a short wavelength LED and a phosphor layer that emits light at longer visible wavelengths. A dichroic reflector transmits the longer wavelength light, and reflects some LED light onto the phosphor such that as light travels from the LED to the dichroic reflector it does not pass through the phosphor. The LED may emit blue light, and the dichroic reflector may transmit a second portion of the LED light, such that the light source output light includes both the second portion of the LED light and the longer wavelength phosphor light. The LED may be mounted on a flexible substrate having a cavity region and neighboring region, the LED being mounted in the cavity region. A dielectric layer may be thinner in the cavity region than in the neighboring region, or a hole may extend completely through the dielectric layer in the cavity region. 1. A light source , comprising:a first ultraviolet emitting LED;a layer of phosphor material, the phosphor material adapted to emit light at longer visible wavelengths in response to excitation from the ultraviolet light emitted by the first LED;a dichroic reflector configured to reflect a first portion of the light emitted by the first LED onto the layer of phosphor material in such a way that as light propagates from the first LED to the dichroic reflector it does not pass through the layer of phosphor material, the dichroic reflector substantially transmitting light at the longer visible wavelengths;wherein the dichroic reflector is configured to transmit a second portion of the light emitted by the first LED, such that the light source emits broadband light that includes a combination of the second portion of the light emitted by the first LED and the light at longer wavelengths emitted by the phosphor material.2. The source of claim 1 , wherein the first LED and the layer of phosphor material are substantially coplanar.3. The source of claim 1 , further comprising a substrate on which at least the ...

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Номер записи: 149
23-03-2017 дата публикации

LED WITH REMOTE PHOSPHOR AND SHELL REFLECTOR

Номер: US20170084799A1
Автор: Dodge Bill H., GABRIEL Nicholas T., McDowell Erin A., OUDERKIRK Andrew J.
Принадлежит:

The present disclosure provides a configuration and technique of fabricating remote phosphor optics (such as lenses) for downconverting LEDs, replacing the prior art solid hemispherical lenses with a novel thin-shell hemispherical lens that can be used with a wide range of encapsulating materials, including low index materials such as air and methyl silicones. The present disclosure further provides a configuration and technique whereby the remote phosphor lenses can be used with an LED array. 2. The lamp of claim 1 , wherein the light conversion material comprises a phosphor capable of down-converting the first wavelength range of light to a second wavelength range of light.3. The lamp of claim 1 , wherein the edge extends between the exterior convex surface and the interior concave surface.4. The lamp of claim 1 , wherein the volume between the interior concave surface and the substrate is at least partially filled with an encapsulant.5. The lamp of claim 4 , wherein the encapsulant comprises a material having an index of refraction not greater than about 1.5.6. The lamp of claim 4 , wherein the encapsulant comprises methyl silicone.7. The lamp of claim 1 , wherein angles of incidence between the interior concave surface and a light ray from the LED are less than 65 degrees from normal incidence.9. The lamp of claim 8 , wherein the at least two LEDs comprise an array of LEDs claim 8 , and the sheet comprises a matching array of light transmissive shells.10. The lamp of claim 9 , wherein the array comprises a linear array claim 9 , a rectangular array claim 9 , a circular array claim 9 , a staggered array claim 9 , or a combination thereof.11. The lamp of claim 8 , wherein the light conversion material comprises a phosphor capable of down-converting the first wavelength range of light to a second wavelength range of light.12. The lamp of claim 8 , wherein the volume between the interior concave surface and the substrate is at least partially filled with an ...

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Номер записи: 150
29-03-2018 дата публикации

POLARIZING BEAM SPLITTER PLATES PROVIDING HIGH RESOLUTION IMAGES AND SYSTEMS UTILIZING SUCH POLARIZING BEAM SPLITTER PLATES

Номер: US20180088348A1
Автор: Carls Joseph C., OUDERKIRK Andrew J.
Принадлежит:

Polarizing beam splitter plates and systems incorporating such beam splitter plates are described. The polarizing beam splitter plate includes a first substrate and a multilayer optical film reflective polarizer that is disposed on the first substrate. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface. The polarizing beam splitter plate is adapted to reflect an imaged light received from an imager towards a viewer or screen with the reflected imaged light having an effective pixel resolution of less than 12 microns. 1. A multilayer optical film reflective polarizer configured to substantially reflect light having a first polarization state and substantially transmit light having an orthogonal second polarization state , the reflective polarizer having a surface roughness Ra of less than 45 nm or a surface roughness Rq of less than 80 nm.2. The multilayer optical film reflective polarizer of having a surface roughness Ra of less than 40 nm or a surface roughness Rq of less than 70 nm.3. The multilayer optical film reflective polarizer configured to reflect an incident image light having the first polarization state with the reflected image light having an effective pixel resolution of less than 12 microns.4. A multilayer optical film reflective polarizer configured to substantially reflect light having a first polarization state and substantially transmit light having an orthogonal second polarization state claim 1 , the multilayer optical film reflective polarizer configured to reflect an incident image light having the first polarization state with the reflected image light having an effective pixel resolution of less than 12 microns.5. The multilayer optical film reflective polarizer of having a surface roughness Ra of less than 45 nm or a surface roughness Rq of less than 80 nm.6. The multilayer optical ...

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Номер записи: 151
05-05-2022 дата публикации

NOVEL NANO-RIBBONS FROM MULTILAYER COEXTRUDED FILM

Номер: US20220136140A1
Автор: Huang Rongzhi, Jonza James M., Jost Kristy A., Kopecky William J., OUDERKIRK Andrew J., Ren Liyun
Принадлежит:

The present invention is a process for converting a multilayer film to a plurality of nano-ribbons. The process includes co-extruding a first film and a second film to form the multilayer film, slitting the multilayer film to form a plurality of multilayer ribbons, and separating the multilayer ribbons to form a plurality of nano-ribbons having substantially flat cross-sections.

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Номер записи: 152
19-03-2020 дата публикации

POLARIZING BEAM SPLITTING SYSTEM

Номер: US20200089005A1
Автор: BOHANNON KANDYCE M., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A polarizing beam splitting system is described. The polarizing beam splitting system may include first and second prisms where the volume of the first prism is no greater than half the volume of the second prism. The first prism includes first and second surfaces and a light source may be disposed adjacent the first surface and an image forming device may be disposed adjacent the second surface. The first prism has a first hypotenuse and the second prism has a second hypotenuse. A reflective polarizer is disposed between the first and second hypotenuses. 1. A polarizing beam splitting system comprising:a first prism comprising a hypotenuse and a first peak opposite the hypotenuse; opposing facets meeting at a second peak opposite the first peak; and', 'extensions extending from the facets along the hypotenuse of the first prism; and, 'a second prism disposed adjacent the hypotenuse of the first prism and comprisinga reflective polarizer disposed between the first and second prisms.2. The polarizing beam splitting system of claim 1 , wherein each extension comprises opposing substantially parallel major surfaces.3. The polarizing beam splitting system of claim 1 , wherein the second prism comprises a substantially planar major surface opposite the second peak claim 1 , the substantially planar major surface comprising a major surface of each extension.4. The polarizing beam splitting system of claim 3 , wherein the substantially planar major surface of the second prism has a substantially same total area as the hypotenuse of the first prism.5. The polarizing beam splitting system of claim 4 , wherein the substantially planar major surface and the first prism are substantially coextensive with the reflective polarizer.6. The polarizing beam splitting system of claim 5 , wherein the second prism has a volume no greater than about half a volume of the first prism.7. The polarizing beam splitting system of claim 1 , wherein the first prism is a right triangular prism ...

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Номер записи: 153
26-06-2014 дата публикации

HYBRID POLARIZING BEAM SPLITTER

Номер: US20140176818A1
Автор: OUDERKIRK Andrew J., Poon Yarn Chee, Watson Philip E.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Polarizing beam splitters and systems incorporating such beam splitters are described. More specifically, hybrid polarizing beam splitters and systems with such beam splitters that incorporate polymeric reflective polarizers aligned with MacNeille or wire grid reflective polarizers are described. 1. An optical component , comprising:a first reflective polarizer disposed to reflect light having a first polarization state and transmit light having a second polarization state different from the first polarization state;a second reflective polarizer positioned adjacent the first reflective polarizer and disposed to reflect light having the first polarization state and transmit light having the second polarization state;wherein the first reflective polarizer is a polymeric reflective polarizer and the second reflective polarizer comprises inorganic dielectric layers or a wire grid.2. The optical component of claim 1 , wherein the first reflective polarizer comprises alternating layers of polymeric film having different refractive indices.3. The optical component of claim 1 , wherein the second reflective polarizer comprises inorganic dielectric layers deposited onto optical glass.4. The optical component of claim 1 , wherein the first polarization state comprises a linear polarization state.5. The optical components of claim 4 , wherein the second polarization state comprises a linear polarization state orthogonal to the first polarization state.6. The optical component of claim 1 , further comprising an optically clear adhesive positioned between the first reflective polarizer and the second reflective polarizer.7. The optical component of claim 6 , wherein the optically clear adhesive is a pressure sensitive adhesive.8. The optical component of claim 1 , wherein the optical component comprises a pellicle component.9. The optical component of claim 1 , further comprising a first prism with a first diagonal surface positioned adjacent the first reflective polarizer ...

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Номер записи: 154
28-03-2019 дата публикации

HEAD-MOUNTED DISPLAY SYSTEM AND COMPONENTS

Номер: US20190094553A1
Автор: Benoit Gilles Jean-Baptiste, McDowell Erin A., Meyer Kenneth Andrew Penner, OUDERKIRK Andrew J., Riddle Brian K.
Принадлежит:

A head-mounted display system including a contact lens having a first region and a second region adjacent the first region, an eyewear lens having an inner surface facing the contact lens, and an illuminator configured to produce an imaged light output directed toward the inner surface of the eyewear lens. A first imaged light ray produced by the illuminator is incident on the inner surface and is reflected by the eyewear lens to the first region. The first region is configured to transmit the first imaged light ray, and the second region is configured to reflect or absorb a second imaged light ray produced by the illuminator and reflected from the eyewear lens. The eyewear lens is configured to transmit an ambient light ray to the second region and the second region is configured to transmit the ambient light ray. 1. A contact lens comprising a first region and a second region and incorporating a multilayer optical film comprising at least one stack of microlayers arranged into a plurality of optical repeat units , each microlayer continuously extending through the first and second regions of the contact lens , each optical repeat unit comprising a first microlayer that is birefringent in the second region and substantially isotropic in the first region.2. The contact lens of claim 1 , wherein in the second region claim 1 , the at least one stack of microlayers substantially transmits visible light having a first polarization state and substantially reflects visible light having an orthogonal second polarization state.3. The contact lens of claim 1 , wherein in the first region claim 1 , the at least one stack of microlayers substantially transmits visible light having a first polarization state and substantially transmits visible light having an orthogonal second polarization state.4. The contact lens of claim 1 , wherein the first region is a central region and the second region is an annular region surrounding the central region.5. The contact lens of claim 1 , ...

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Номер записи: 155
28-03-2019 дата публикации

HEAD MOUNTED DISPLAY WITH EYE TRACKING

Номер: US20190094555A1
Автор: OUDERKIRK Andrew J.
Принадлежит:

A head mounted display is disclosed. More particularly, a head mounted display including one or more projection light sources, one or more eye-tracking light sources, a polarizing beam splitter, and a second polarizing beam splitter is disclosed. Light from the one or more projection light sources and the one or more projection light sources and the one or more eye-tracking light sources are both at least partially reflected by the polarizing beam splitter. An optical path between the polarizing beam splitter and the second polarizing beam splitter passes through air. A head mounted display that utilizes polarizing beam splitters having certain reflection bandedges over a range of incidence angles is disclosed. 1. An optical device , comprising:a first polarizing beam splitter; anda second polarizing beam splitter facing, and adapted to receive light transmitted and reflected by, the first polarizing beam splitter, the first and second polarizing beam splitters having substantially equal left band edges and different right band edges.2. The optical device of further comprising a wave plate for rotating a polarization state of light claim 1 , the second polarizing beam splitter disposed between the first polarizing beam splitter and the wave plate.3. The optical device of further comprising a reflector for reflecting light claim 1 , the second polarizing beam splitter disposed between the first polarizing beam splitter and the reflector.4. The optical device of claim 1 , wherein for light incident at about 45 degrees claim 1 , the first polarizing beam splitter has a right band edge between about 950 nm and about 850 nm.5. The optical device of claim 1 , wherein for light incident at about 45 degrees claim 1 , the second polarizing beam splitter has a right band edge between about 800 nm and about 700 nm.6. The optical device of further comprising a first light source configured to emit visible light and a different second light source configured to emit infrared ...

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Номер записи: 156
06-04-2017 дата публикации

HEAD-MOUNTED DISPLAY

Номер: US20170097449A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A head-mounted display including a first optical system is provided. The first optical system includes an image surface, a stop surface, a first optical stack disposed between the image surface and the stop surface and a second optical stack disposed between the first optical stack and the stop surface. The first optical stack includes a first optical lens and a partial reflector. The second optical stack includes a second optical lens, a multilayer reflective polarizer and a first quarter wave retarder disposed between the multilayer reflective polarizer and the first optical stack. The multilayer reflective polarizer may be convex toward the image surface along orthogonal first and second axes. 1. A head-mounted display comprising a first optical system , the first optical system comprising:a first image surface;a first stop surface; a first optical lens; and', 'a first partial reflector having an average optical reflectance of at least 30% in a desired plurality of wavelengths; and, 'a first optical stack disposed between the first image surface and the first stop surface and convex toward the first image surface along orthogonal first and second axes, the first optical stack comprising a second optical lens;', {'b': 1', '1', '1', '1, 'a first multilayer reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state, the first multilayer reflective polarizer having at least one first location having a radial distance, r, from an optical axis passing through an apex of the first multilayer reflective polarizer and a displacement, s, from a plane perpendicular to the optical axis at the apex, s/r being at least 0.1; and'}, 'a first quarter wave retarder disposed between the first multilayer reflective polarizer and the first optical stack., 'a second optical stack disposed between the first optical stack and the first stop surface and convex toward the image ...

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Номер записи: 157
06-04-2017 дата публикации

METHOD OF MAKING OPTICAL FILMS AND STACKS

Номер: US20170097453A1
Автор: Ambur Gregg A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

Methods of making optical films and optical stacks are described. A method of making an optical stack includes providing a thermoform tool centered on a tool axis and having an external surface rotationally asymmetric about the tool axis; heating an optical film resulting in a softened optical film; conforming the softened optical film to the external surface while stretching the softened film along at least orthogonal first and second directions away from the tool axis resulting in a conformed optical film rotationally asymmetric about an optical axis of the conformed film where the optical axis coincident with the tool axis; cooling the conformed optical film resulting in a symmetric optical film rotationally symmetric about the optical axis; and molding an optical lens on the symmetric optical film resulting in the optical stack. 1. A method of making an optical stack comprising a desired optical film having a desired shape , the method comprising:providing a tool having an external surface having a first shape different than the desired shape;conforming the optical film to the external surface having the first shape while stretching the optical film along at least orthogonal first and second directions resulting in a conformed optical film having the first shape;releasing the conformed optical film from the external surface resulting in the desired optical film having the desired shape; andmolding an optical lens on the optical film resulting in the optical stack.2. The method of making an optical stack of claim 1 , wherein the molding step comprises film insert molding.3. The method of making an optical stack of claim 1 , wherein the molding step comprises injection molding.4. The method of claim 1 , wherein the molding step comprises molding a second film on the optical lens opposite the desired optical film.5. The method of claim 4 , wherein the second film comprises a partial reflector.6. The method of claim 5 , wherein the second film further comprises a ...

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Номер записи: 158
06-04-2017 дата публикации

Optical system

Номер: US20170097454A1
Автор: Andrew J. Ouderkirk, Erin A. McDOWELL, Gregg A. Ambur, Timothy L. Wong, Zhisheng Yun
Принадлежит: 3M Innovative Properties Co

Optical systems including first and second optical stacks and adapted to provide an adjustable dioptric correction are described. The first optical stack includes a first optical lens and a partial reflector. The second optical stack is convex along orthogonal first and second axes and includes a second optical lens and a reflective polarizer. The reflective polarizer has at least one first location having a radial distance r1 from an optical axis of the second optical stack and a displacement s1 from a plane perpendicular to the optical axis at an apex of the reflective polarizer, where s1/r1 is at least 0.1. A quarter wave retarder is disposed between the second optical stack and the first optical stack.

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Номер записи: 159
26-03-2020 дата публикации

Optical system

Номер: US20200096780A1
Автор: Andrew J. Ouderkirk, Jo Anne Etter, Zhisheng Yun
Принадлежит: 3M Innovative Properties Co

An optical system for displaying an object to a viewer is described. The optical system includes an integral first optical assembly, an integral second optical assembly, and an integral third optical assembly disposed between the integral first and second optical assemblies. The integral first optical assembly has a first focal length and includes one or more first optical lenses, and a reflective polarizer. The integral second optical assembly has a second focal length and includes one or more second optical lenses, and a partial reflector having an average optical reflectance of at least 30% for a desired plurality of wavelengths. The integral third optical assembly has a third focal length and includes a curved first phase retarder. The third focal length is greater than a smaller of the first and second focal lengths.

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Номер записи: 160
23-04-2015 дата публикации

ILLUMINATION CONVERTER

Номер: US20150109822A1
Автор: OUDERKIRK Andrew J.
Принадлежит:

The disclosure generally relates to illumination converters that are capable of converting light from one geometrical format to another. In particular, the described illumination converters are capable of converting a circular source such as an LED to a linear source useful in an edgelit waveguide, which can be used in a backlight for a display. The converter consists of a waveguide plate () with two edges () oriented towards each other at 45° such that a the waveguide plate consists of a rectangular part () attached to a triangular part (). The triangular part is rolled into a coil around a central axis () and one side of the coil is used for coupling in of the light from a source. 1. An illumination converter , comprising: a central axis about which the visible-light transparent film is wound;', 'a light input surface perpendicular to the central axis, the light input surface comprising a first edge of the visible-light transparent film;', 'a reflective surface comprising a second edge of the visible-light transparent film disposed at a 45 degree angle to the first edge of the visible-light transparent film;', 'a light output region parallel to the central axis; and, 'a spiral-wound portion of a visible-light transparent film havinga planar portion of the visible-light transparent film extending tangentially from the spiral-wound portion of the visible-light transparent film to a light output edge of the visible-light transparent film,wherein the visible-light transparent film is a glass film.2. The illumination converter of claim 1 , wherein the light output edge of the visible-light transparent film is parallel to the central axis.3. The illumination converter of claim 1 , wherein the spiral-wound portion further comprises a gap between adjacent layers of the spiral-wound portion such that total internal reflection (TIR) can occur within the visible-light transparent film.4. The illumination converter of claim 3 , wherein the gap comprises air or a material ...

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Номер записи: 161
02-06-2022 дата публикации

BI-FOCAL EYEWEAR LENS AND EYEGLASSES INCLUDING SAME

Номер: US20220171217A1
Автор: Kent Susan L., Le John D., McDowell Erin A., OUDERKIRK Andrew J., Steiner Michael L., Wong Timothy L., Yun Zhisheng
Принадлежит:

A bi-focal prescription eyewear lens includes a substrate and a reflective polarizer, or a partial reflector, bonded to the substrate. A reflective polarizer substantially transmits light having a first polarization state and substantially reflects light having an orthogonal second polarization state. The bi-focal optical lens has a first focal length for light having the first polarization state and a second focal length for light having the second polarization state. The first focal length is longer than the second focal length. Without the reflective polarizer or partial reflector, the bi-focal optical lens would have a single focal length. Eyeglasses can include the bi-focal prescription eyewear lens. 1. A bi-focal prescription eyewear lens , comprising:a substrate; anda reflective polarizer bonded to the substrate, the reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state, the bi-focal optical lens having a first focal length for light having the first polarization state and a second focal length for light having the second polarization state, the first focal length being longer than the second focal length, such that without the reflective polarizer, the bi-focal optical lens would have a single focal length.2. Eyeglasses comprising the bi-focal prescription eyewear lens of .3. A bi-focal prescription eyewear lens claim 1 , comprising:a substrate; anda partial reflector bonded to the substrate, the partial reflector having an average optical reflectance of at least 30% for a desired plurality of wavelengths, the bi-focal optical lens having a first focal length for light having a first polarization state and a second focal length for light having an orthogonal second polarization state, the first focal length being longer than the second focal length, such that without the partial reflector, the bi-focal optical lens would have a single focal ...

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Номер записи: 162
29-04-2021 дата публикации

Polymer composites and methods of making

Номер: US20210122125A1
Автор: Andrew J. Ouderkirk, Erin A. McDOWELL, Jo A. Etter, Kristy A. Jost, Rachel ANDREASEN, Robert R. Kieschke
Принадлежит: 3M Innovative Properties Co

Polymer composites and methods of making wherein the polymer composites include a continuous matrix phase and a reinforcing phase, with varying properties (material and/or physical).

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Номер записи: 163
02-04-2020 дата публикации

VIEWING DEVICE

Номер: US20200103659A1
Автор: OUDERKIRK Andrew J., Powers Max
Принадлежит:

A viewing device is disclosed. The device includes a projector that projects a first imaged light, and a polarizing beam splitter plate that receives the projected first imaged light from the projector and reflects the received first imaged light for viewing by a viewer. The polarizing beam splitter plate also receives a second image and transmits the second image for viewing by the viewer. The polarizing beam splitter plate includes a substrate and a multilayer optical film reflective polarizer that is adhered to the substrate. The reflective polarizer substantially reflects polarized light having a first polarization state and substantially transmits polarized light having a second polarization state perpendicular to the first polarization state. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface. The polarizing beam splitter plate reflects the received first imaged light towards the viewer with the reflected first imaged light having an effective pixel resolution of less than 12 microns. 1. An optical component comprising opposing first and second major surfaces , at least one of which is curved , and a multilayer polymeric optical film adhered to one of the first and second major surfaces , wherein the multilayer polymeric optical film reflects at least 80% of polarized light having a first polarization state and has a surface roughness Ra of less than 45 nm.2. The optical component of claim 1 , wherein when the optical component receives a first image claim 1 , the multilayer polymeric optical film reflects the first image with the reflected first image having an effective pixel resolution of less than 12 microns.3. The optical component of claim 1 , wherein the multilayer polymeric optical film has a surface roughness Rq of less than 80 nm.4. The optical component of claim 1 , wherein the first and ...

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Номер записи: 164
18-04-2019 дата публикации

VIEWING DEVICE

Номер: US20190113756A1
Автор: OUDERKIRK Andrew J., Powers Max
Принадлежит:

A viewing device is disclosed. The device includes a projector that projects a first imaged light, and a polarizing beam splitter plate that receives the projected first imaged light from the projector and reflects the received first imaged light for viewing by a viewer. The polarizing beam splitter plate also receives a second image and transmits the second image for viewing by the viewer. The polarizing beam splitter plate includes a substrate and a multilayer optical film reflective polarizer that is adhered to the substrate. The reflective polarizer substantially reflects polarized light having a first polarization state and substantially transmits polarized light having a second polarization state perpendicular to the first polarization state. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface. The polarizing beam splitter plate reflects the received first imaged light towards the viewer with the reflected first imaged light having an effective pixel resolution of less than 12 microns. 1. An optical component comprising opposing first and second major surfaces , at least one of which is curved , and a multilayer polymeric optical film reflective polarizer adhered to one of the first and second major surfaces , wherein when the optical component receives a first image , the multilayer polymeric optical film reflective polarizer reflects the first image with the reflected first image having an effective pixel resolution of less than 12 microns.2. The optical component of claim 1 , wherein the multilayer polymeric optical film reflective polarizer has a surface roughness Ra of less than 45 nm.3. The optical component of claim 1 , wherein the multilayer polymeric optical film reflective polarizer has a surface roughness Rq of less than 80 nm.4. The optical component of claim 1 , wherein the first and second ...

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Номер записи: 165
03-05-2018 дата публикации

LIGHT CONTROL FILM WITH VARIED VIEWING ANGLE

Номер: US20180120580A1
Автор: BENSON, Blong Thomas J., Boyd Gary T., Gaides Gary E., JR. Olester, Kieschke Robert R., Liu Tao, OUDERKIRK Andrew J., Smith Kenneth L., Sykora MICHAEL J.
Принадлежит:

A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle. 1. A light control film comprising a plurality of spaced apart substantially parallel light absorbing regions arranged along a first direction , each light absorbing region having a width W and a height H and a length L , H/W≥1 , L/H≥20 , the plurality of light absorbing regions comprising nonoverlapping adjacent first and second sub-pluralities of the plurality of light absorbing regions , the light absorbing regions in the first sub-plurality of the plurality of light absorbing regions disposed in a first light transmissive region , the first sub-plurality of the plurality of light absorbing regions having a first viewing angle , the light absorbing regions in the second sub-plurality of the plurality of light absorbing regions disposed in a second light transmissive region , the second sub-plurality of the plurality of light absorbing regions having a different second viewing angle.2. The light control film of claim 1 , wherein each of the first and second sub-pluralities includes at least 100 light absorbing regions.3. The light control film of claim 1 , wherein the light absorbing regions are substantially perpendicular to a major surface of the light control film.4. The light control film of claim 1 , wherein the light absorbing regions form oblique angles with a major surface of the light control film.5. A solar cell assembly comprising the light control film of disposed on a solar cell ...

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Номер записи: 166
03-05-2018 дата публикации

LIGHT CONTROL FILM WITH VARIED VIEWING ANGLE

Номер: US20180120581A1
Автор: BENSON, Blong Thomas J., Boyd Gary T., Gaides Gary E., JR. Olester, Kieschke Robert R., Liu Tao, OUDERKIRK Andrew J., Smith Kenneth L., Sykora MICHAEL J.
Принадлежит:

A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle. 1. A light control film comprising alternating light absorbing and light transmissive regions disposed between , and substantially perpendicular to , substantially parallel opposing major first and second surfaces , each light absorbing region tapering from a wider first end proximate the major first surface to a narrower second end proximate the major second surface , each light transmissive region terminating at , and aligned with , a corresponding optical lens at the major first surface , each light absorbing region partially filled with a light absorbing material so that the first end of each light absorbing region is recessed relative to a base of the optical lens on each lateral side of the light absorbing region and concave toward the major first surface.2. The light control film of claim 1 , such that when the light control film receives light from a Lambertian light source through the major first surface claim 1 , light exits the light control film from the major second surface of the light control film having an intensity profile having a substantially flat-top and a half width at half maximum between about 10 degrees to about 20 degrees.3. The light control film of claim 1 , wherein the first end of each light absorbing region is recessed from the major first surface by a distance from about 5 microns to about 20 microns.4. The light control film of claim 1 , wherein the light ...

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Номер записи: 167
14-05-2015 дата публикации

HYBRID LIGHT BULBS USING COMBINATIONS OF REMOTE PHOSPHOR LEDS AND DIRECT EMITTING LEDS

Номер: US20150131259A1
Автор: McDowell Erin A., OUDERKIRK Andrew J.
Принадлежит:

A light source suitable for general lighting applications combines at least one remote phosphor LED and at least one direct emitting LED in a single unit. Both the remote phosphor LED and the direct emitting LED are carried by a base and covered by a bulb or other suitable cover member, which may be light-diffusing. The remote phosphor LED includes a first LED, a phosphor layer, and a first dichroic reflector. Excitation light from the first LED is reflected by the first dichroic reflector onto the phosphor layer to generate phosphor light, which is substantially transmitted by the first dichroic reflector. At least some light from the direct emitting LED propagates to the cover member without passing through any dichroic reflector, including the first dichroic reflector. The light source may provide white light output using relatively small amounts of phosphor material. 1. A light source for emitting broadband output light , comprising:a base;a light-transmissive cover member attached to the base;a first LED, a second LED, a first phosphor layer, and a first dichroic reflector carried by the base and covered by the cover member;wherein the first dichroic reflector is configured to reflect at least some excitation light from the first LED onto the first phosphor layer to cause the first phosphor layer to emit first phosphor light, the first dichroic reflector also configured to substantially transmit the first phosphor light;wherein the second LED is disposed to emit at least some light that propagates from the second LED to the cover member without passing through any dichroic reflector including the first dichroic reflector.2. The source of claim 1 , wherein the first LED claim 1 , the first phosphor layer claim 1 , and the first dichroic reflector are arranged such that the at least some excitation light propagates from the first LED to the first dichroic reflector without passing through the first phosphor layer.3. The source of claim 1 , wherein light emitted ...

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Номер записи: 168
11-05-2017 дата публикации

OPTICAL STACKS FOR SPARKLE REDUCTION

Номер: US20170131559A1
Автор: Hennen Daniel W., Hoffend, JR. Thomas R., Liu Lan H., OUDERKIRK Andrew J., Radcliffe Marc D., Sitter Brett J.
Принадлежит:

Optical stacks including a grating structure that generates diffraction in two in-plane dimensions. The optical stacks may include two gratings, which may be one-directional or two-directional, or may include a single two-directional grating. The optical stacks include particles selected to give controlled diffusion of light. The optical stacks are suitable for reducing sparkle in displays. 2. The optical stack of claim 1 , wherein the first grating is a one-directional grating.3. The optical stack of claim 1 , wherein the first grating is a two-directional grating.4. The optical stack of claim 1 , wherein Iis greater than about 0.1 times I.5. The optical stack of claim 1 , wherein the first layer includes an optically clear adhesive.6. The optical stack of claim 1 , wherein the first layer includes a polymer or a polymer composite.7. The optical stack of claim 1 , wherein the second layer includes an optically clear adhesive.8. The optical stack of claim 1 , wherein the second layer includes a polymer or polymer composite.9. The optical stack of further comprising a third layer adjacent the second layer opposite the first layer.10. The optical stack of claim 9 , wherein the third layer includes a polymer or a polymer composite or an optically clear adhesive.11. The optical stack of claim 9 , wherein an interface between the second layer and the third layer comprises a second grating.12. The optical stack of claim 11 , wherein the first grating is a first one-directional grating extending substantially along a first direction and the second grating is a second one-directional grating extending substantially along a second direction different from the first direction.13. The optical stack of claim 1 , wherein the plurality of particles have a mean diameter in a range of about 0.5 microns to about 30 microns.14. The optical stack of claim 1 , wherein an absolute value of a refractive index difference between particles in the plurality of particles and a medium in ...

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Номер записи: 169
23-04-2020 дата публикации

OPTICAL SYSTEM

Номер: US20200124856A1
Автор: Etter Jo A., Jennings Robert M., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

An optical system including at least a first lens, a partial reflector and a reflective polarizer is described. The optical system has an optical axis such that a light ray propagating along the optical axis passes through the first lens the partial reflector and the reflective polarizer without being substantially refracted. At least one major surface of the optical system is rotationally asymmetric about the optical axis. A major surface of the optical system may have a first portion defined by a first equation and a second portion adjacent the first portion defined by a different equation. The first lens may have a contoured edge adapted to be placed adjacent an eye of a viewer and substantially conform to the viewer's face. 1. An optical system comprising:a first lens;a partial reflector having an average optical reflectance of at least 30% for at least one desired wavelength; anda reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state,the optical system having an optical axis, a light ray propagating along the optical axis passes through the first lens, the partial reflector and the reflective polarizer without being substantially refracted,the first lens having opposing first and second major surfaces defined by respective different first and second equations, wherein each equation, but not each major surface, is rotationally symmetric about the optical axis.2. The optical system of claim 1 , wherein each of the first and second major surfaces has a first portion rotationally symmetric about the optical axis and a second portion adjacent the first portion rotationally asymmetric about the optical axis.3. The optical system of claim 2 , wherein the first portion is an interior portion and the second portion is a peripheral portion.4. The optical system of claim 3 , wherein the optical system is adapted for displaying an image to a viewer and the ...

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Номер записи: 170
03-06-2021 дата публикации

COMPACT PROJECTION SYSTEMS AND RELATED COMPONENTS

Номер: US20210165230A1
Автор: McDowell Erin A., OUDERKIRK Andrew J., Yun Zhisheng
Принадлежит:

Projection systems and components thereof are described that are well suited to miniaturization. These systems and components may use one or more of the following features: a folded optical path, as in a reflective cavity or a beamsplitter; an illumination beam that is converging at the place where it impinges upon the spatial light modulator; a beamsplitter that uses opposed prisms of substantially different sizes; a beamsplitter whose obliquely disposed partial reflector defines a first rectangular reference space, and where at least a portion of the light source or at least a portion of the projector lens is disposed within such first rectangular reference space; a system in which a ratio of areas of the first rectangular reference space and a second rectangular reference space is within a specified range, where the second rectangular reference space is just large enough to encompass the optical components of the projector; a system in which the projector lens is small compared to the spatial light modulator. 1. A compact polarized illuminator , comprising:a reflector;a reflective polarizer disposed to form a reflective cavity with the reflector;a retarder film disposed within the reflective cavity; anda light source disposed to emit a polarized input light beam into the reflective cavity through an aperture in the reflector;wherein the reflector, the reflective polarizer, and the retarder film are configured to produce an output illumination beam from the input light beam, and wherein the output illumination beam is polarized.2. The compact polarized illuminator of claim 1 , wherein at least one of the reflector and the reflective polarizer is curved claim 1 , and wherein the output illumination beam is converging.3. The compact polarized illuminator of claim 1 , wherein light follows a light path from the light source to the output illumination beam that includes passing through the aperture claim 1 , reflecting from the reflective polarizer claim 1 , ...

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Номер записи: 171
07-08-2014 дата публикации

LENS ASSEMBLY FOR REMOTE PHOSPHOR LED DEVICE

Номер: US20140218938A1
Автор: GABRIEL Nicholas T., HUNG Huang Chin, OUDERKIRK Andrew J., Sura Ravi K.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Lens assemblies for use in remote phosphor lighting systems, and methods of making and using them, are described. The lens assemblies typically include a lens member, a dichroic reflector attached to an outer surface of the lens member, and a phosphor layer attached to an inner surface of the lens member. The dichroic reflector reflects LED light originating from a given source point in a reference plane proximate the inner surface to a given image point in the reference plane. The phosphor layer may be patterned to cover one or more first portions of the inner surface and to expose one or more second portions, and/or the phosphor layer may be removably bonded to the inner surface. The lens assemblies can be readily combined with one or more short wavelength (e.g. blue) LEDs and other components to provide a remote phosphor lighting system. 1. A lens assembly for use in a remote phosphor LED device , comprising:a lens member having an outer surface and an inner surface, the outer surface being curved to define an optical axis that intersects the inner surface;a dichroic reflector attached to at least a portion of the outer surface, the dichroic reflector being configured to reflect LED light originating from a given source point in a reference plane proximate the inner surface to a given image point in the reference plane; anda phosphor layer attached to at least a portion of the inner surface, the phosphor layer adapted to emit phosphor light;wherein the dichroic reflector is adapted to transmit the phosphor light; andwherein (a) the phosphor layer is patterned to cover one or more first portions of the inner surface and to expose one or more second portions of the inner surface, the given image point being disposed proximate the one or more first portions and the given source point being disposed proximate the one or more second portions, and/or (b) the phosphor layer is removably bonded to the inner surface.2. The assembly of claim 1 , wherein the outer surface ...

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Номер записи: 172
18-05-2017 дата публикации

EFFICIENT LIGHTING SYSTEM WITH WIDE COLOR RANGE

Номер: US20170138570A1
Автор: OUDERKIRK Andrew J.
Принадлежит:

Broadband solid state light sources include remote phosphor LED(s), short-wavelength direct emitting LED(s), and long-wavelength direct emitting LED(s). A diffuse or clear cover member covers these LEDs. Each remote phosphor LED includes an LED, a phosphor layer, and a dichroic reflector. The light sources can provide a broadband output light over a wide color range, and can do so efficiently while energizing a high percentage or proportion of the total number of LEDs in the system. The broadband output may for example exhibit a color difference of at least 0.2 in CIE chromaticity units, and/or a correlated color temperature difference of at least 4000 or 5000 Kelvin, while energizing more than half, or at least 60%, or at least 70%, of the total number of LEDs. Numbers of LEDs can be replaced with effective numbers of LEDs if LEDs of substantially different sizes are included in the light source. 1. A lighting system , comprising:a plurality of independently controlled LEDs, wherein light from at least one LED in the plurality of LEDs creates light in a phosphor layer after being reflected by a partial reflector, the created light exiting the lighting system after passing though the partial reflector, wherein light from at least one other LED in the plurality of LEDs exits the lighting system without being reflected by a partial reflector, and wherein light exiting the lighting system has first and second colors having a color difference of at least 0.2 in CIE chromaticity units.2. The system of claim 1 , wherein more than half of the plurality of LEDs are energized.3. The system of claim 1 , wherein more than 60% of the plurality of LEDs are energized.4. The system of claim 1 , wherein the first and second colors are sufficiently close to the Planckian locus such that they have respective first and second correlated color temperatures.5. The system of claim 4 , such that the first and second correlated color temperatures differ by at least 4000 Kelvin.6. The ...

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Номер записи: 173
25-05-2017 дата публикации

CONVEX MULTILAYER REFLECTIVE POLARIZER

Номер: US20170146714A1
Автор: Ambur Gregg A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A multilayer reflective polarizer substantially rotationally symmetric about an optical axis passing thorough an apex of the multilayer reflective polarizer and convex along orthogonal first and second axes orthogonal to the optical axis is described. The multilayer reflective polarizer has at least one first location having a radial distance r1 from the optical axis and a displacement s1 from a plane perpendicular to the optical axis at the apex, where s1/r1 is at least 0.1. The multilayer reflective polarizer may have at least one inner layer substantially optically uniaxial at at least one first location away from the apex. For an area of the reflective polarizer defined by s1 and r1, a maximum variation of a transmission axis of the reflective polarizer may be less than about 2 degrees. 1. A multilayer reflective polarizer substantially rotationally symmetric about an optical axis passing thorough an apex of the multilayer reflective polarizer and convex along orthogonal first and second axes orthogonal to the optical axis , the multilayer reflective polarizer having:at least one inner layer substantially optically uniaxial at at least one first location away from the apex; andat least one first location on the reflective polarizer having a radial distance, r1, from the optical axis and a displacement, s1, from a plane perpendicular to the optical axis at the apex, s1/r1 being at least 0.1.2. The multilayer reflective polarizer of claim 1 , wherein for an area of the reflective polarizer defined by s1 and r1 claim 1 , a maximum variation of a transmission axis of the reflective polarizer is less than about 2 degrees.3. The multilayer reflective polarizer of claim 2 , wherein the maximum variation of the transmission axis of the reflective polarizer is less than about 1.5 degrees.4. The multilayer reflective polarizer of claim 1 , wherein the at least one inner layer is substantially optically biaxial at at least one second location on the at least one layer away ...

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Номер записи: 174
16-05-2019 дата публикации

PORTABLE HYDRATION SENSOR

Номер: US20190142332A1
Автор: Bonifas Andrew P., GABRIEL Nicholas T., Jesme Ronald D., McDowell Erin A., OUDERKIRK Andrew J.
Принадлежит:

A portable sensor for measuring a hydration level of an object in close physical proximity with the sensor includes a portable housing having a total volume of less than about 50 cm3. First circuitry disposed in the housing includes a thermal source, a controller electrically coupled to the thermal source, a temperature sensing element, and a processor coupled to the temperature sensing element. When the object is in close physical proximity with the sensor, the thermal source is energized by the controller with a signal having a known function of time. The object affects a time variation of a temperature of the thermal source, the temperature sensing element senses the affected time variation of the temperature of the thermal source, and the processor determines a hydration level of the object based on a characteristic of the affected time variation of the temperature of the thermal source. 1. A portable sensor for measuring a hydration level of an object in close physical proximity with the portable sensor , comprising:{'sup': '3', 'a portable housing having a total volume of less than about 50 cm; and'}a first circuitry disposed in the housing and comprising:a thermal source;a controller electrically coupled to the thermal source;a temperature sensing element; anda processor coupled to the temperature sensing element,a moisture management layer in thermal contact with the thermal source and the temperature sensing element, the moisture management layer, when substantially dry, having a known time variation of temperature in response to the thermal source being energized with the signal having the known function of time, such that when an object is in close physical proximity with the moisture management layer with the moisture management layer disposed between the object and the thermal source and the temperature sensing element, the moisture management layer controls a moisture transfer rate between the object and the moisture management layer, the thermal ...

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Номер записи: 175
02-06-2016 дата публикации

ROLL PROCESSING OF FILM

Номер: US20160152518A1
Автор: GABRIEL Nicholas T., Johnson Eugene V., Johnson Kelly S., Kieschke Robert R., McDowell Erin A., OUDERKIRK Andrew J.
Принадлежит:

A method of coating film in a roll. A film is wound into a roll with gaps between the layers of the film in the roll. A fluid is forced through the roll such that the fluid deposits a coating on at least one side of the film. 1. A method of processing a film , comprising the steps of:winding the film into a roll with gaps between layers of the film in the roll; andforcing a fluid through the gaps,wherein the fluid deposits a coating on at least one side of the film.2. The method of claim 1 , wherein spacers are positioned near a first edge and near a second edge of the layers of the film such that the spacers provide the gaps between the layers of the film.3. The method of claim 2 , wherein the spacers allow fluid to pass axially through the layers of the film.4. The method of claim 2 , wherein the spacers have a structured surface.5. The method of claim 1 , wherein each gap between the layers of the film is in the range of 5 to 5000 microns.6. The method of claim 1 , wherein each gap between the layers of the film is in the range of 10 to 1000 microns.7. The method of claim 6 , wherein each gap is in the range of 50 to 250 microns.8. The method of claim 1 , wherein the fluid is forced through the gaps from a first edge to a second edge of the film.9. The method of claim 1 , wherein the fluid flows spirally or axially through the roll.10. The method of claim 1 , wherein the film has a thickness between about 10 and 500 microns.11. The method of claim 1 , wherein the fluid is a gas.12. The method of claim 1 , wherein the fluid is a liquid or a combination of a liquid and a gas.13. The method of claim 1 , wherein the film comprises polymer claim 1 , glass claim 1 , metal claim 1 , ceramic claim 1 , or a combination thereof.14. The method of claim 13 , wherein the film is a glass film.15. The method of claim 1 , wherein the film has a Young's modulus of greater than 5 GPa.16. The method of claim 15 , wherein the film has a Young's modulus of greater than 20 GPa.17. The ...

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Номер записи: 176
02-06-2016 дата публикации

SHEET COATING METHOD

Номер: US20160153087A1
Автор: Dodge Bill H., GABRIEL Nicholas T., Johnson Kelly S., Kieschke Robert R., McDowell Erin A., Miller James R., Nevitt Timothy J., OUDERKIRK Andrew J., Powers Max, Schmidt Daniel J.
Принадлежит:

A method of coating a plurality of sheets. A fluid is forced through gaps in the plurality of sheets. The fluid has a substantially plug flow profile and the fluid deposits a coating on at least one surface of the plurality of sheets in a self-limiting deposition process. 1. A method of coating sheets , comprising the steps of:providing a plurality of sheets with gaps between the sheets, the sheets having an input edge and an output edge; andforcing a fluid through the gaps,wherein the fluid flow through the gaps has a substantially plug flow profile and the fluid deposits a coating on at least one surface of the plurality of sheets in a self-limiting deposition process.2. The method of claim 1 , wherein the fluid is a gas.3. The method of claim 1 , wherein the fluid is a liquid or a combination of a liquid and a gas.4. The method of claim 1 , wherein a ratio of an input pressure of the fluid on the input edge to an output pressure of the fluid on the output edge is at least 1.01.5. The method of claim 4 , wherein the ratio is at least 1.05.6. The method of claim 5 , wherein the ratio is at least 1.1.7. The method of claim 6 , wherein the ratio is as least 1.2.8. The method of claim 1 , wherein the self-limiting deposition process comprises atomic layer deposition.9. The method of claim 1 , wherein the self-limiting deposition process comprises layer-by-layer self-assembly.10. The method of claim 1 , wherein the gaps are in the range of 2 mm to 6 mm.11. The method of claim 1 , further comprising the steps of placing the plurality of sheets in a reactor and forcing a fluid through the reactor.12. The method of claim 11 , wherein at least 50% of the fluid forced through the reactor passes through the gaps between the sheets.13. The method of claim 12 , wherein at least 80% of the fluid forced through the reactor passes through the gaps between the sheets.14. The method of claim 11 , wherein the reactor provides space for gas flow in front of the sheets and the space ...

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Номер записи: 177
28-08-2014 дата публикации

BACKLIGHT AND DISPLAY SYSTEM USING SAME

Номер: US20140240981A1
Автор: Biernath Rolf W., BRYAN William J., Derks Kristopher J., Freier David G., Hebrink Timothy J., Jordan Myron K., Kivel Edward J., Nevitt Timothy J., OUDERKIRK Andrew J., Schardt Craig R., Weber Michael F., Wheatley John A., Yang Zhaohui
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane. 1. A luminaire comprising:a front reflector and a back reflector that form a hollow light recycling cavity comprising an output surface; andone or more light sources comprising multiple LEDs that emit different colors of light disposed to emit light into the light recycling cavity;wherein the front reflector comprises a polymeric multilayer optical film having an on-axis average reflectivity of at least 65%.2. The luminaire of further comprising a light sensor and feedback system to detect and control white point or temperature of light from the LEDs.3. The luminaire of wherein one or more light sensors are located along the edge or within the light recycling cavity.4. The luminaire of further comprising a thermal sensor and feedback system to detect and control the output of the LEDs.5. The luminaire of comprising one or more side-emitting LEDs.6. The luminaire of wherein the luminaire provides polarized outputs.7. The luminaire of wherein the luminaire provides unpolarized outputs. The following co-owned and copending PCT Patent Applications are incorporated herein by reference: PCT Patent Publication No. WO2008/144636, PCT Publication WO2008/144644 and; PCT Publication No. WO2008/147753.The present disclosure relates to extended area light sources suitable for illuminating a display or other graphic from behind, commonly referred to as backlights. The disclosure is particularly suited, but not necessarily limited, to backlights that emit ...

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Номер записи: 178
14-05-2020 дата публикации

HEAD MOUNTED DISPLAY AND LOW CONSPICUITY PUPIL ILLUMINATOR

Номер: US20200150439A1
Автор: Benoit Gilles J., BOHANNON KANDYCE M., OUDERKIRK Andrew J., Wong Timothy L.
Принадлежит:

The present disclosure provides for an optical element useful in an optical device for illuminating the pupil of an eye, particularly for use with a head mountable display that can include eye-tracking. The optical device includes a light source and an optical element that transmits light, where light emitted from the light source is directed by the optical element toward the pupil of the eye, and attributes of the eye can then be detected by an optical sensor such as a camera. The light source can emit infrared light that is not visible to the human eye, so that world view images and/or combined digital images of the head-mountable display are not compromised. 1. A head-mountable display comprising:a lens comprising opposing first and second major surfaces and a partial reflector embedded in the lens between, and making oblique angles with, the first and second major surfaces;a reflective polarizer disposed adjacent the lens; anda quarter-wave retarder disposed between the reflective polarizer and the partial reflector.2. The head-mountable display of claim 1 , wherein the partial reflector comprises a reflective polarizer.3. The head-mountable display of claim 1 , wherein the partial reflector comprises a broadband partial mirror. A major trend in wearable devices is not only providing data to a user, but also sensing important information from a user. The user's eyes can provide critical information to help the user navigate through screens, monitor the health and alertness of the user, and provide feedback on reactions of the user to different sources of information. Eye monitoring commonly requires illumination sources, typically infrared lights, to be positioned in front of the eye. This front illumination adds devices and electrical connections to a highly visible part of eyewear, often limiting design aesthetics. Furthermore, the electrical connections can often pass through the hinge of the eyewear, and can result in the hinge becoming stiffer, reducing the ...

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Номер записи: 179
21-05-2020 дата публикации

LOW BIREFRIGENCE, MOLDED OPTICAL COMPONENTS

Номер: US20200156335A1
Автор: McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L.
Принадлежит:

In some examples, a method may include injection molding an optical material in a mold defining at least one optical surface to form a molded component, and machining the molded component to form a machined optical component including a machined optical surface. In some examples, a method may include injection molding an optical material in an axially symmetric mold cavity defining at least one optical surface to form a molded component, and machining the molded component to form an optical component that does not possess axial symmetry. Optical component formed by these methods and molds for utilizing in these methods also are described. 1. A method comprising:injection molding an optical material in an axially symmetric mold cavity defining at least one optical surface to form a molded component comprising at least one molded optical surface; andmachining the molded component to form a machined optical component comprising a machined optical surface and the at least one molded optical surface, wherein the machined optical component that does not possess axial symmetry.2. The method of claim 1 , wherein the axially symmetric mold cavity defines a long axis claim 1 , and wherein the mold cavity is axially symmetric about the long axis.3. The method of claim 1 , wherein the machined optical component comprises a prism.4. The method of claim 1 , wherein the optical material comprises at least one of an acrylic or a cyclo-olefin polymer.5. The method of further comprising adhering an optically active film to the machined optical surface using an optical adhesive.6. The method of claim 5 , wherein a refractive index of the optical adhesive is within about 20% of a refractive index of the optical material.7. The method of claim 1 , wherein the machining of the molded component produces at least one acute interior angle in the machined optical component. The disclosure describes optical components and techniques for forming optical components.Molded optical components ...

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Номер записи: 180
11-09-2014 дата публикации

TITLED DICHROIC POLARIZING BEAMSPLITTER

Номер: US20140253849A1
Автор: Cheng Xiaohui, OUDERKIRK Andrew J., Poon Yarn Chee, Tan Kim Leong, Watson Philip E., Willett Stephen J.
Принадлежит:

The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.

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Номер записи: 181
25-06-2015 дата публикации

POLARIZING BEAM SPLITTER PLATES PROVIDING HIGH RESOLUTION IMAGES AND SYSTEMS UTILIZING SUCH POLARIZING BEAM SPLITTER PLATES

Номер: US20150177531A1
Автор: Carls Joseph C., OUDERKIRK Andrew J.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Polarizing beam splitter plates and systems incorporating such beam splitter plates are described. The polarizing beam splitter plate includes a first substrate and a multilayer optical film reflective polarizer that is disposed on the first substrate. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface. The polarizing beam splitter plate is adapted to reflect an imaged light received from an imager towards a viewer or screen with the reflected imaged light having an effective pixel resolution of less than 12 microns. 1. A polarization subsystem comprising:a first imager; anda polarizing beam splitter plate for receiving imaged light from the imager and comprising:a first substrate;a multilayer optical film reflective polarizer disposed on the first substrate;a first outermost major surface; andan opposing second outermost major surface making an angle of less than about 20 degrees with the first outermost major surface,wherein the polarizing beam splitter plate reflects the received imaged light towards a viewer or screen with the reflected imaged light having an effective pixel resolution of less than 12 microns.210-. (canceled)11. The polarization subsystem of claim 1 , wherein the second outermost major surface makes an angle of less than about 5 degrees with the first outermost major surface.12. The polarization subsystem of claim 1 , wherein a maximum separation between the first and second outermost major surfaces is less than about 1 mm.13. The polarization subsystem of claim 1 , wherein at least one of the first and second outermost major surfaces comprises a curved portion.14. The polarization subsystem of further comprising a second substrate claim 1 , the multilayer optical film reflective polarizer being disposed between the first and second substrates.15. The polarization subsystem of claim 1 , ...

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Номер записи: 182
21-05-2020 дата публикации

LENS WITH EMBEDDED MULTILAYER OPTICAL FILM FOR NEAR-EYE DISPLAY SYSTEMS

Номер: US20200159025A1
Автор: McDowell Erin A., OUDERKIRK Andrew J.
Принадлежит:

A lens is formed from at least two sections or bodies that are shaped to mate with each other, and a multilayer optical film is sandwiched between these two sections. Smooth surfaces of each section combine to provide a first optical surface of the lens, e.g., a concave, convex, or flat optical surface. The multilayer optical film includes a stack of polymer layers configured to selectively reflect light by constructive or destructive interference, at least some of the polymer layers being birefringent. The multilayer optical film may thus be or comprise e.g. a reflective polarizer and/or a narrow band or otherwise notched reflector. The multilayer optical film has an extended terminus that separates the smooth surfaces of the two sections. Any edge defects such as cracks or delaminations that may exist along the extended terminus are characterized by an average defect distance of no more than 100 or 50 microns. 1. A method of fabricating an optical component , the method comprising:providing a first optical section having a first mating surface; a second optical section having a second mating surface; and a multilayer optical film;disposing the multilayer optical film between, and bonding the multilayer optical film to each of, the first mating surface of the first optical section and the second mating surface of the second optical section; andcutting a first portion of the first optical section and a first portion of the multilayer optical film to form a first optical surface, and cutting a second portion of the second optical section and a second portion, opposite the first portion, of the multilayer optical film to form a second optical surface.2. The method of fabricating an optical component of claim 1 , wherein forming the first optical surface further comprises the step of cutting a first portion of the second optical section claim 1 , and forming the second optical surface further comprises the step of cutting a second portion of the first optical section.3 ...

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Номер записи: 183
22-06-2017 дата публикации

HEAD MOUNTED DISPLAY AND LOW CONSPICUITY PUPIL ILLUMINATOR

Номер: US20170176749A1
Автор: Benoit Gilles J., BOHANNON KANDYCE M., OUDERKIRK Andrew J., Wong Timothy L.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The present disclosure provides for an optical element useful in an optical device for illuminating the pupil of an eye, particularly for use with a head mountable display that can include eye-tracking. The optical device includes a light source and an optical element that transmits light, where light emitted from the light source is directed by the optical element toward the pupil of the eye, and attributes of the eye can then be detected by an optical sensor such as a camera. The light source can emit infrared light that is not visible to the human eye, so that world view images and/or combined digital images of the head-mountable display are not compromised. 1. An optical element , comprising:a lens having a concave first major surface, an opposing second major surface, and an embedded reflector disposed therebetween;a reflective polarizer aligned to a first polarization direction and disposed adjacent the concave first major surface; anda retarder between the reflective polarizer and the embedded reflector, the retarder having a fast axis aligned at a retarder angle to the first polarization direction.2. The optical element of claim 1 , wherein the retarder is disposed immediately adjacent the reflective polarizer.3. The optical element of claim 1 , wherein the retarder is disposed immediately adjacent the embedded reflector.4. The optical element of claim 1 , wherein the retarder is a quarter-wave retarder claim 1 , and the retarder angle is about 45 degrees.5. The optical element of claim 1 , wherein the embedded reflector comprises a partial reflector.6. The optical element of claim 5 , wherein the partial reflector comprises a dichroic reflector capable of reflecting at least a first wavelength range of light and transmitting other wavelength ranges of light.7. The optical element of claim 5 , wherein the partial reflector comprises a broadband partial mirror.8. The optical element of claim 1 , wherein the embedded reflector is a planar reflector.9. The ...

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Номер записи: 184
22-06-2017 дата публикации

NEAR-EYE DISPLAY SYSTEM HAVING A PELLICLE AS A COMBINER

Номер: US20170176751A1
Автор: OUDERKIRK Andrew J., Wong Timothy L.
Принадлежит:

Near-eye combiner displays are disclosed that utilize dichroic reflectors and/or reflective polarizers disposed as a pellicle positioned within a field of view of the eye. A secondary image can be reflected off of the reflective polarizer and/or dichroic layer towards the eye, and can be superimposed over a primary world-view image being viewed by the eye. The position and orientation of the pellicle can be independently adjusted as desired. 1. A near-eye display system , comprising:a pellicle capable of being disposed at least partially within a field of view of an eye, the pellicle having a first major surface and an opposing second major surface; andan image forming device positioned to project an image light beam toward the first major surface of the pellicle,wherein the pellicle transmits a first light beam passing through the opposing second major surface toward the eye, and reflects at least a portion of the image light beam toward the eye.2. The near-eye display system of claim 1 , wherein the pellicle comprises a dichroic layer capable of reflecting at least a first wavelength range of light claim 1 , and transmitting other wavelength ranges of light.3. The near-eye display system of claim 1 , wherein the pellicle comprises a dichroic layer capable of reflecting a first wavelength range of light and a second wavelength range of light claim 1 , and transmitting other wavelength ranges of light.4. The near-eye display system of claim 1 , wherein the pellicle comprises a dichroic layer capable of reflecting a first wavelength range of light claim 1 , a second wavelength range of light claim 1 , and a third wavelength range of light claim 1 , and transmitting other wavelength ranges of light.5. The near-eye display system of claim 1 , wherein the pellicle comprises a reflective polarizer capable of reflecting a first polarization state of light and transmitting an orthogonal second polarization state of light.6. The near-eye display system of claim 5 , wherein ...

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Номер записи: 185
02-07-2015 дата публикации

Lens With Embedded Multilayer Optical Film for Near-Eye Display Systems

Номер: US20150185480A1
Автор: BINDER Erin A., OUDERKIRK Andrew J.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A lens is formed from at least two sections or bodies that are shaped to mate with each other, and a multilayer optical film is sandwiched between these two sections. Smooth surfaces of each section combine to provide a first optical surface of the lens, e.g., a concave, convex, or flat optical surface. The multilayer optical film includes a stack of polymer layers configured to selectively reflect light by constructive or destructive interference, at least some of the polymer layers being birefringent. The multilayer optical film may thus be or comprise e.g. a reflective polarizer and/or a narrow band or otherwise notched reflector. The multilayer optical film has an extended terminus that separates the smooth surfaces of the two sections. Any edge defects such as cracks or delaminations that may exist along the extended terminus are characterized by an average defect distance of no more than 100 or 50 microns. 1. A lens having first and second opposed optical surfaces connected by a circumferential surface , the lens comprising:a first lens section having a first smooth surface and a side surface;a second lens section having a first smooth surface, a second smooth surface, and a side surface; anda multilayer optical film embedded in the lens between the first and second lens sections, the multilayer optical film comprising a plurality of polymer layers configured to selectively reflect light by constructive or destructive interference, at least some of the polymer layers being birefringent;wherein the first optical surface comprises the first smooth surface of the first lens section and the first smooth surface of the second lens section;wherein the second optical surface comprises the second smooth surface of the second lens section; andwherein the multilayer optical film comprises a first extended terminus that separates the first smooth surface of the first lens section from the first smooth surface of the second lens section.2. The lens of claim 1 , wherein ...

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Номер записи: 186
28-05-2020 дата публикации

Hybrid polarizing beam splitter

Номер: US20200166766A1
Автор: Andrew J. Ouderkirk, Philip E. Watson, Yarn Chee Poon
Принадлежит: 3M Innovative Properties Co

Polarizing beam splitters and systems incorporating such beam splitters are described. More specifically, hybrid polarizing beam splitters and systems with such beam splitters that incorporate polymeric reflective polarizers aligned with MacNeille or wire grid reflective polarizers are described.

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Номер записи: 187
18-09-2014 дата публикации

Display Device

Номер: US20140267987A1
Автор: INGHAM Kelly Reed, OUDERKIRK Andrew J.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A display device comprising a Spatial Light Modulator assembly including active display elements for displaying an image, a patterned color layer including at least one color pixel array, a reflector for reflecting ambient incident light, and a light absorbing layer, wherein the color pixel array comprises a first pixel group including at least three contiguously arranged pixels capable of transmitting a first color, and a second pixel group including at least three contiguously arranged pixels capable of transmitting a second color. 1. A display device comprising:a liquid crystal assembly including active display elements for displaying an image,a patterned color layer including at least one color pixel array,a reflector for reflecting ambient incident light, anda light absorbing layer, whereinthe color pixel array comprises a first pixel group including at least three contiguously arranged pixels capable of transmitting a first color, and a second pixel group including at least three contiguously arranged pixels capable of transmitting a second color.2. The display device of claim 1 , wherein the color pixel array further comprises a third pixel group including at least one pixel capable of transmitting a third color.3. The display device of claim 1 , wherein the at least three contiguously arranged pixels of the first claim 1 , second and/or third pixel group are arranged in an L-shape.4. The display device of claim 1 , wherein the first pixel group includes four contiguously arranged pixels claim 1 , and the second pixel group includes four contiguously arranged pixels.5. The display device of claim 1 , wherein each color pixel array includes nine individual pixels arranged in a 3-rows-by-3-columns arrangement.6. The display device of claim 1 , wherein the patterned color layer is disposed on the liquid crystal assembly.7. The display device of claim 1 , wherein the liquid crystal assembly comprises an external-facing absorbing polarizer layer claim 1 , and an ...

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Номер записи: 188
28-06-2018 дата публикации

OPTICAL SYSTEM

Номер: US20180180784A1
Автор: Ambur Gregg A., McDowell Erin A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

Optical systems including an image surface, a stop surface, a partial reflector disposed between the image surface and the stop surface, a reflective polarizer disposed between the stop surface and the partial reflector, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector are described. The reflective polarizer is convex along two orthogonal axes. The reflective polarizer may be a thermoformed multilayer reflective polarizer. 1. An optical system , comprising:a partial reflector having an average optical reflectance of at least 30% in a desired plurality of wavelengths; anda multilayer reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state, the multilayer reflective polarizer convex along orthogonal first and second axes, at least one first location on the multilayer reflective polarizer having a radial distance r1 from an optical axis of the multilayer reflective polarizer and a displacement s1 from a plane perpendicular to the optical axis at an apex of the multilayer reflective polarizer, s1/r1 being at least 0.1; and wherein the multilayer reflective polarizer comprises at least one layer substantially optically biaxial at at least one first location on the at least one layer away from the optical axis and substantially optically uniaxial at at least one second location on the at least one layer away from the optical axis; and', 'wherein for an area of the multilayer reflective polarizer defined by s1 and r1, a maximum variation of a transmission axis of the multilayer reflective polarizer is less than about 2 degrees., 'a first quarter wave retarder disposed between the partial reflector and the multilayer reflective polarizer,'}2. The optical system of claim 1 , wherein the at least one layer at the at least one second location has a first refractive index in a thickness direction claim 1 , a second ...

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Номер записи: 189
28-06-2018 дата публикации

CONVEX MULTILAYER REFLECTIVE POLARIZER

Номер: US20180180788A1
Автор: Ambur Gregg A., OUDERKIRK Andrew J., Wong Timothy L., Yun Zhisheng
Принадлежит:

A multilayer reflective polarizer convex along orthogonal first and second axes orthogonal to an optical axis passing thorough an apex of the multilayer reflective polarizer is described. The multilayer reflective polarizer has at least one first location having a radial distance r from the optical axis and a displacement s from a plane perpendicular to the optical axis at the apex, where s/r is in a range of about 0.2 to about 0.8. The multilayer reflective polarizer may have at least one inner layer substantially optically uniaxial at at least one first location away from the apex. For an area of the reflective polarizer defined by s and r, a maximum variation of a transmission axis of the reflective polarizer may be less than about 2 degrees. 1. A multilayer reflective polarizer convex along orthogonal first and second axes orthogonal to an optical axis passing thorough an apex of the multilayer reflective polarizer , the multilayer reflective polarizer having:at least one inner layer substantially optically uniaxial at at least one first location on the at least one inner layer away from the apex; and{'b': 1', '1', '1', '1, 'at least one first location on the reflective polarizer having a radial distance, r, from the optical axis and a displacement, s, from a plane perpendicular to the optical axis at the apex, s/r being in a range of about 0.2 to about 0.8.'}211. The multilayer reflective polarizer of claim 1 , wherein for an area of the reflective polarizer defined by s and r claim 1 , a maximum variation of a transmission axis of the reflective polarizer is less than about 2 degrees.3. The multilayer reflective polarizer of claim 2 , wherein the maximum variation of the transmission axis of the reflective polarizer is less than about 1.5 degrees.4. The multilayer reflective polarizer of claim 1 , wherein the at least one inner layer is substantially optically biaxial at at least one second location on the at least one inner layer away from the apex.511. The ...

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Номер записи: 190
28-06-2018 дата публикации

Illuminator

Номер: US20180180980A1
Автор: Andrew J. Ouderkirk, Erin A. McDOWELL, Kandyce M. Bohannon, Timothy L. Wong, Zhisheng Yun
Принадлежит: 3M Innovative Properties Co

A folded light path illuminator is provided. The illuminator may include a polarizing beam splitter having an input face, an output face and an imager face, a light source disposed adjacent the input face and defining an input active area on the input face, and an image forming device disposed adjacent the imager face for receiving light emitted from the light source and emitting a patterned light, which may be a converging patterned light. The image forming device may have a largest image area which defines an output active area on the output face. One or both of the input active area and the output active area may be less than about half the largest image area. The polarizing beam splitter may include first and second prisms and the volume of the first prism may be no greater than half the volume of the second prism.

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Номер записи: 191
11-06-2020 дата публикации

PARTICLES WITH VARIABLE REFRACTIVE INDEX

Номер: US20200181413A1
Автор: Dodge Bill H., Hartmann-Thompson Claire, Lyons Christopher S., OUDERKIRK Andrew J.
Принадлежит:

A particle having a first portion and a second portion surrounding the first portion is described. A volume of the second portion is at least 50 percent of a volume of the particle. The second portion includes a material having a local composition or an effective refractive index that varies substantially continuously across the thickness of the second portion. The material includes a plurality of inorganic regions and may further include organic regions. The particle can be made via atomic or molecular layer deposition. 1. A particle having a first portion and a second portion surrounding the first portion , wherein a volume of the second portion is at least 50 percent of a volume of the particle , the second portion comprises a material having a composition that varies across a thickness of the second portion and an effective refractive index that varies substantially continuously across the thickness of the second portion , and the material comprises a plurality of inorganic regions.2. The particle of claim 1 , wherein the effective refractive index at a position in the second portion of the particle is a refractive index of a composition of materials present in the second portion within 20 nm of the position.3. The particle of claim 1 , wherein a first region in the plurality of inorganic regions comprises a first inorganic component and a different second region in the plurality of inorganic regions comprises a different second inorganic component.4. The particle of claim 1 , wherein the material further comprises at least one organic region.5. The particle of claim 1 , wherein the effective refractive index varies monotonically across the thickness of the second portion.6. The particle of claim 1 , wherein the effective refractive index varies non-monotonically across the thickness of the second portion.7. The particle of claim 1 , wherein the second portion comprises a plurality of mutually concentric layers with transition regions between adjacent concentric ...

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Номер записи: 192
11-06-2020 дата публикации

HIGH CONTRAST OPTICAL FILM AND DEVICES INCLUDING THE SAME

Номер: US20200183065A1
Автор: Haag Adam D., Nevitt Timothy J., OUDERKIRK Andrew J., Stover Carl A., Taylor Robert D., Yang Zhaohui
Принадлежит:

Optical films are disclosed that include a plurality of interference layers. Each interference layer reflects or transmits light primarily by optical interference. The total number of the interference layers is less than about 1000. For a substantially normally incident light in a predetermined wavelength range, the plurality of interference layers has an average optical transmittance greater than about 85% for a first polarization state, an average optical reflectance greater than about 80% for an orthogonal second polarization state, and an average optical transmittance less than about 0.2% for the second polarization state. 1. An optical stack comprising:a reflective polarizer comprising a plurality of polymeric layers, each polymeric layer having an average thickness less than about 200 nm; andan absorbing polarizer bonded to and substantially co-extensive with the reflective polarizer, such that for a substantially normally incident light and at least one predetermined wavelength in a range from about 400 nm to about 700 nm and about 800 nm to about 1300 nm:the plurality of polymeric layers has an optical transmittance greater than about 90% for a first polarization state, an optical reflectance greater than about 90% for an orthogonal second polarization state, and an optical transmittance less than about 0.1% for the second polarization state; andthe absorbing polarizer has a first optical transmittance for the first polarization state, an optical absorption greater than about 50% for the second polarization state, and a second optical transmittance for the second polarization state, a ratio of the second optical transmittance to the first optical transmittance being greater than about 0.01.2. The optical stack of claim 1 , wherein the ratio of the second optical transmittance to the first optical transmittance is greater than about 0.1.3. The optical stack of claim 1 , wherein the at least one predetermined wavelength comprises 550 nm.4. The optical stack of ...

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Номер записи: 193
14-07-2016 дата публикации

HEAD MOUNTED DISPLAY WITH EYE TRACKING

Номер: US20160202484A1
Автор: OUDERKIRK Andrew J.
Принадлежит:

A head mounted display is disclosed. More particularly, a head mounted display including one or more projection light sources, one or more eye-tracking light sources, a polarizing beam splitter, and a second polarizing beam splitter is disclosed. Light from the one or more projection light sources and the one or more projection light sources and the one or more eye-tracking light sources are both at least partially reflected by the polarizing beam splitter. An optical path between the polarizing beam splitter and the second polarizing beam splitter passes through air. A head mounted display that utilizes polarizing beam splitters having certain reflection bandedges over a range of incidence angles is disclosed. 1. A head-mounted optical device , comprising:one or more projection light sources;one or more eye-tracking light sources;a polarizing beam splitter; anda second polarizing beam splitter;wherein the optical device is configured such that projection light from the one or more projection light sources and eye-tracking light from the one or more eye-tracking light sources are both at least partially reflected by the polarizing beam splitter; andwherein the optical device is configured such that an optical path between the polarizing beam splitter and the second polarizing beam splitter for at least one of projection light from the one or more projection light sources and eye-tracking light from the one or more eye-tracking light sources passes through air.2. A head-mounted optical device , comprising:one or more projection light sources;one or more eye-tracking light sources;a polarizing beam splitter; anda second polarizing beam splitter;wherein the optical device is configured such that projection light from the one or more projection light sources and eye-tracking light from the one or more eye-tracking light sources are both at least partially reflected by the polarizing beam splitter; andwherein as measured between 40 degrees and 50 degrees in a medium with ...

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Номер записи: 194
12-07-2018 дата публикации

Optical system

Номер: US20180196181A1
Автор: Andrew J. Ouderkirk, Erin A. McDOWELL, Gregg A. Ambur, Timothy L. Wong, Zhisheng Yun
Принадлежит: 3M Innovative Properties Co

Optical systems including a partial reflector, a reflective polarizer, and a quarter wave retarder disposed between the partial reflector and the reflective polarizer are described. The reflective polarizer is curved about two orthogonal axes and has at least one location having a radial distance r 1 from an optical axis passing through an apex of the reflective polarizer and a displacement s 1 from a plane perpendicular to the optical axis at an apex of the reflective polarizer, where s 1 /r 1 is at least 0.1. The optical system is adapted to provide an adjustable dioptric correction.

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Номер записи: 195
18-06-2020 дата публикации

OPTICAL LENS AND EYEWEAR INCLUDING SAME

Номер: US20200192126A1
Автор: Kent Susan L., Le John D., McDowell Erin A., OUDERKIRK Andrew J., Steiner Michael L., Wong Timothy L., Yun Zhisheng
Принадлежит:

An optical lens including first and second polarizers, a partial reflector disposed between the first and second polarizers, a first phase retarder disposed between the first polarizer and the partial reflector, and a second phase retarder disposed between the partial reflector and the second polarizer is described. The optical lens is a single piece configured for use in an eyewear. Eyewear including at least one of the optical lenses is also described. 115-. (canceled)17. The optical lens of further comprising a substrate disposed between the partial reflector and the second polarizer and having an average optical transmittance of at least 80% for the desired plurality of wavelengths.18. The optical lens of claim 17 , wherein the substrate comprises a first major surface configured to face away from a viewer and an opposite second major surface configured to face toward the viewer claim 17 , at least one of the first and second major surfaces of the substrate being curved.19. The optical lens of claim 16 , wherein the first polarization state is substantially parallel to the third polarization state claim 16 , and each of the first and second phase retarders comprises orthogonal fast and slow axes claim 16 , the fast axes of the first and second phase retarders being substantially parallel to each other.20. The optical lens of claim 16 , wherein the first polarization state is substantially perpendicular to the third polarization state claim 16 , and each of the first and second phase retarders comprises orthogonal fast and slow axes claim 16 , the fast axes of the first and second phase retarders being substantially perpendicular to each other.21. The optical lens of having an optical axis such that a light ray propagating along the optical axis passes through the optical lens without being substantially refracted claim 16 , a thickness of the optical lens along the optical axis being less by at least 20% as compared to a comparative optical lens having the same ...

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Номер записи: 196
27-07-2017 дата публикации

GLASS AND POLYMER FILM ASSEMBLIES AND METHODS OF MAKING

Номер: US20170210095A1
Автор: OUDERKIRK Andrew J.
Принадлежит:

A glass and polymer film assembly including a glass film and a polymer film bonded to a surface of the glass film. The polymer film is directly bonded to the glass film by applying the polymer to the glass film when the glass film is above a bonding temperature of the polymer film. The glass film may have a thickness less than about 1 mm and the polymer film may be an oriented semicrystalline homopolymer which is permanently bonded to a major surface of the glass film. 1. A glass and polymer film assembly , comprising:a glass film having a thickness less than about 1 mm and having a first major surface and a second major surface opposite the first major surface, anda first homopolymer permanently bonded to the first major surface of the glass film, the first homopolymer an oriented semicrystalline polymer.2. The glass and polymer film assembly of claim 1 , further comprising a polymer layer attached to the second major surface of the glass film.3. The glass and polymer film assembly of claim 2 , wherein the polymer layer is releaseably attached to the second major surface of the glass film.4. The glass and polymer film assembly of claim 2 , wherein the polymer layer is a second homopolymer that is permanently bonded to the second major surface of the glass film claim 2 , the second homopolymer an oriented semicrystalline polymer.5. The glass and polymer film assembly of claim 4 , wherein the first and second homopolymers have substantially balanced degrees of orientation.6. The glass and polymer film assembly of claim 4 , wherein the first and second homopolymers produce substantially balanced forces on the glass film.7. The glass and polymer film assembly of claim 1 , further comprising one or more film layers adjacent the first homopolymer opposite the glass film.8. The glass and polymer film assembly of claim 1 , wherein the thickness of the glass film is less than about 0.5 mm.9. A method of forming a glass and polymer film assembly claim 1 , comprising the ...

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Номер записи: 197
06-08-2015 дата публикации

VIEWING DEVICE

Номер: US20150219896A1
Автор: OUDERKIRK Andrew J., Powers Max
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A viewing device is disclosed. The device includes a projector that projects a first imaged light, and a polarizing beam splitter plate that receives the projected first imaged light from the projector and reflects the received first imaged light for viewing by a viewer. The polarizing beam splitter plate also receives a second image and transmits the second image for viewing by the viewer. The polarizing beam splitter plate includes a substrate and a multilayer optical film reflective polarizer that is adhered to the substrate. The reflective polarizer substantially reflects polarized light having a first polarization state and substantially transmits polarized light having a second polarization state perpendicular to the first polarization state. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface. By enhancing the flatness of the polarizer, the resolution can be improved. The polarizing beam splitter plate reflects the received first imaged light towards the viewer with the reflected first imaged light having an effective pixel resolution of less than 12 microns. 1. A viewing device , comprising:a projector projecting a first imaged light; anda polarizing beam splitter plate receiving the projected first imaged light from the projector and reflecting the received first imaged light for viewing by a viewer, the polarizing beam splitter plate receiving a second image and transmitting the second image for viewing by the viewer, the polarizing beam splitter plate comprising:a first substrate;a multilayer optical film reflective polarizer adhered to the first substrate, the reflective polarizer substantially reflecting polarized light having a first polarization state and substantially transmitting polarized light having a second polarization state perpendicular to the first polarization state;a first outermost ...

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Номер записи: 198