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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

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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 8762. Отображено 100.
19-01-2012 дата публикации

Optical lens unit and plastic lens forming mold and plastic lens manufacturing method therefor

Номер: US20120014001A1
Автор: Ichiro Kurihara
Принадлежит: Kantatsu Co Ltd

Disclosed is an invention that aims to accurately position a lens barrel and an optical lens and form a plastic lens easily with a high-precision forming mold. A plastic lens is formed by filling resin into a cavity surrounded by a fixed mold, a movable mold, and inserts, which are removably incorporated into respective molds. A lens portion and conical surfaces of the plastic lens are formed with the inserts. This provides enhanced forming accuracy by making the conical surfaces and lens portion concentric with each other. When the plastic lens is to be incorporated into the lens barrel, the conical surface of the plastic lens is allowed to be in line contact with the vertical inner circumferential surface of the lens barrel to make the plastic lens concentric with the lens barrel for the purpose of accurate positioning.

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Номер записи: 1
26-01-2012 дата публикации

Retroreflective sheeting including cube corner elements

Номер: US20120019910A1
Автор: Kenneth L. Smith
Принадлежит: 3M Innovative Properties Co

The present disclosure is directed to lamina(e) comprising cube corner elements, a tool comprising an assembly of laminae and replicas thereof. The disclosure further relates to retroreflective sheeting.

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Номер записи: 2
02-02-2012 дата публикации

Semiconductor light emitting device substrate strips and packaged semiconductor light emitting devices

Номер: US20120025254A1
Автор: Ban P. Loh, Nicholas W. Medendorp, JR.
Принадлежит: Cree Inc

Semiconductor light emitting device packaging methods include fabricating a substrate configured to mount a semiconductor light emitting device thereon. The substrate may include a cavity configured to mount the semiconductor light emitting device therein. The semiconductor light emitting device is mounted on the substrate and electrically connected to a contact portion of the substrate. The substrate is liquid injection molded to form an optical element bonded to the substrate over the semiconductor light emitting device. Liquid injection molding may be preceded by applying a soft resin on the electrically connected semiconductor light emitting device in the cavity. Semiconductor light emitting device substrate strips are also provided.

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Номер записи: 3
08-03-2012 дата публикации

Method and apparatus for sequentially laminating optical film including polarizing film, to rectangular-shaped panel

Номер: US20120055622A1
Автор: Minoru Miyatake, Shusaku Goto, Takashi Kamijo, Takeharu Kitagawa, Takuya Nakazono, Tomohiro Mori
Принадлежит: Nitto Denko Corp

A method of sequentially laminating a carrier film-attached optical film laminate to a rectangular-shaped panel having a long side and a short side, is provided. The optical film laminate includes an optical film including a thin polarizing film, and a carrier film attached to the optical film through an adhesive layer. The method includes the steps: forming a plurality of slits in the carrier film-attached optical film laminate in a width direction thereof at lengthwise given intervals to extend from a surface of the optical film on a side opposite to the carrier film to a depth reaching a surface of the carrier film adjacent to the optical film to thereby form an optical film sheet supported by the carrier film, between lengthwisely adjacent two of the slits; and laminating each of the optical film sheets to a respective one of the panels through the adhesive layer.

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Номер записи: 4
08-03-2012 дата публикации

Method of producing roll of laminate strip with polarizing film

Номер: US20120056340A1
Автор: Minoru Miyatake, Shusaku Goto, Takashi Kamijo, Takeharu Kitagawa, Takuya Nakazono, Tomohiro Mori
Принадлежит: Nitto Denko Corp

A method of producing a roll of an optical film laminate strip including a polarizing film includes the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll.

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Номер записи: 5
08-03-2012 дата публикации

Optical members and devices employing the same

Номер: US20120057100A1
Автор: Atsushi Toyota, Jiro Hattori, Masaru Iwasawa, Naoya Taniguchi, Shinichiro Nakamura, Shoichi Masuda
Принадлежит: 3M Innovative Properties Co

There are provided optical members having a microlens array structure that can be produced by a more simple process, as well as devices employing them. The optical members have on one main surface a microlens array formed using a replication process that employs a mold comprising a plurality of gas bubbles arranged on a replication surface. There are also provided devices that employ the optical members.

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Номер записи: 6
22-03-2012 дата публикации

Method of making a light emitting device having a molded encapsulant

Номер: US20120070921A1
Автор: Catherine A. Leatherdale, D. Scott Thompson, Larry D. Boardman
Принадлежит: 3M Innovative Properties Co

Disclosed herein is a method of making a light emitting device having an LED die and a molded encapsulant made by polymerizing at least two polymerizable compositions. The method includes: (a) providing an LED package having an LED die disposed in a reflecting cup, the reflecting cup filled with a first polymerizable composition such that the LED die is encapsulated; (b) providing a mold having a cavity filled with a second polymerizable composition; (c) contacting the first and second polymerizable compositions; (d) polymerizing the first and second polymerizable compositions to form first and second polymerized compositions, respectively, wherein the first and second polymerized compositions are bonded together; and (e) optionally separating the mold from the second polymerized composition. Light emitting devices prepared according to the method are also described.

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Номер записи: 7
29-03-2012 дата публикации

Rear vision system for a vehicle

Номер: US20120078469A1
Автор: Kenneth Schofield, Lee Karner, Niall R. Lynam
Принадлежит: Donnelly Corp

A rear vision system for a vehicle includes a rear backup video camera and a display device. A control activates display of captured video images by the display device when a transmission of the vehicle is shifted into reverse gear and deactivates display of the video images upon shifting of the vehicle transmission out of reverse gear once a threshold deactivation condition is met. The threshold deactivation condition is at least one of (a) forward travel of the vehicle exceeding a threshold speed of forward movement after the vehicle transmission has been shifted out of reverse gear, (b) forward travel of the vehicle exceeding a threshold distance of forward movement after the vehicle transmission has been shifted out of reverse gear and (c) a threshold period of time elapsing after the vehicle transmission has been shifted out of reverse gear, the threshold period of time constituting a linger time.

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Номер записи: 8
26-04-2012 дата публикации

Composite optical element and process for production thereof, and imaging device and optical recording/reproduction device each equipped with the composite optical element

Номер: US20120100344A1
Автор: Nobuyuki Kobayashi
Принадлежит: Panasonic Corp

The present invention provides a composite optical element including a resin layer that is less susceptible to yellowing and has small cure shrinkage during formation. The present invention is a composite optical element including a resin layer obtained by polymerizing a resin composition containing a (meth)acrylate compound of a saturated aliphatic epoxy compound, a multifunctional isocyanurate compound, and a photopolymerization initiator.

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Номер записи: 9
14-06-2012 дата публикации

Mold release film and process for producing light emitting diode

Номер: US20120148820A1
Автор: Tamao Okuya
Принадлежит: Asahi Glass Co Ltd

To provide a mold release film for producing a light emitting diode by a mold, which is less susceptible to formation of pin holes or rupture and which is applicable to mass production of a light emitting diode by means of a mold having a plurality of cavities, and a process for producing a light emitting diode by means of such a mold release film. A mold release film to be disposed on the cavity surface of a mold to form a substantially hemispherical lens portion by encapsulating a light emitting element of a light emitting diode with an encapsulation resin, which release film has a thickness of from 16 to 175 μm and a tensile rupture elongation of from 600 to 3,000% at 110° C. as measured in accordance with JIS K7127, and a process for producing a light emitting diode by means of such a mold release film.

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Номер записи: 10
05-07-2012 дата публикации

Device and method for producing thick-walled moulded plastics parts having reduced shrinkage sites by injection molding or embossing

Номер: US20120171452A1
Автор: Arne Schmidt, Christian Eberle, Marc Poth, Werner Hoess
Принадлежит: Evonik Roehm GmbH

The invention relates to a device and method for producing thick-walled plastic molded parts by injection molding or embossing. The device comprises a mold for injection molding or embossing, having a cavity, and is characterized in that the mold comprises a wall region adjacent to the cavity, and a body removed from the cavity and adjacent to the wall region near the cavity, wherein the body of the mold is designed for a temperature T 1 and the wall region is designed for a temperature T 2 different from the temperature T 1 . According to the method, the temperature T 2 of the wall region of the mold near the cavity is brought to and held at a value greater than the Vicat temperature T v of the plastic molding mass before and/or during the injection process, wherein the temperature T 2 is greater than the temperature T 1 of the mold body, and the temperature T 2 of the wall region near the cavity is brought to a temperature below the Vicat temperature T v of the plastic molding mass during the solidification of the plastic molding mass. The result is thick-walled molded plastic parts, such as optical lenses and the like, having reduced shrinkage sites.

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Номер записи: 11
09-08-2012 дата публикации

Method and apparatus for producing a thermoplastic resin film

Номер: US20120200002A1
Автор: Doseok Lee, Hiroyuki Aso, Hiroyuki Inoue
Принадлежит: TORAY INDUSTRIES INC

A thermoplastic resin film manufacturing method and manufacturing device are disclosed wherein an air volume sprayed by the auxiliary cooling device onto the surface of the film on the opposite side thereof to the cooling drum side thereof is set to be larger than the suction amount by an exhaust mechanism between nozzles, to avoid the suction of the air containing the high concentration of oligomer around the extrusion die into the auxiliary cooling device, thereby preventing precipitation and deposition of the oligomer onto spraying nozzles within the auxiliary cooling device and the suction surface of the exhaust mechanism between nozzles.

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Номер записи: 12
23-08-2012 дата публикации

Colored ink for pad transfer printing of silicone hydrogel lenses

Номер: US20120213922A1
Автор: Barry L. Atkins, Gregory Carlson, Michael Hugh Quinn
Принадлежит: Individual

The present invention provides a method for making colored silicone hydrogel contact lenses. The method of the invention comprises the steps of: (a) providing a contact lens constructed of a silicone hydrogel; (b) applying a color coat to at least a portion of a surface of the lens with an ink, wherein the ink comprises at least one colorant, a silicone-containing binder polymer, one or more vinylic monomers, and optionally a diluent, wherein the silicone-containing binder polymer is a copolymerization product of a polymerizable mixture including (i) at least one hydrophilic vinylic monomer; (ii) at least one functionalizing vinylic monomer; (iii) at least one silicone-containing vinylic monomer or macromer; (c) curing the ink in the presence of an adhesion promoter, thereby causing the color coat to adhere to the lens.

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Номер записи: 13
30-08-2012 дата публикации

Apparatus and method for producing a component and aircraft structure component

Номер: US20120217382A1
Автор: Axel Herrmann, Clemens Bockenheimer, Ichwan Zuardy, Pierre Zahlen
Принадлежит: AIRBUS OPERATIONS GMBH

An apparatus for producing a component includes a material storage tank for receiving a liquid material (M), a moulding tool in which a filling region to be filled with material (M) from the material storage tank is formed, and a material supply line which connects the material storage tank to the filling region of the moulding tool. In the region of the material supply line and/or the filling region of the moulding tool an optical fibre has been arranged, into which at least one Fibre Bragg Grating sensor for detecting a parameter that is characteristic of the flow of material through the material supply line and/or the filling region of the moulding tool is integrated.

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Номер записи: 14
06-09-2012 дата публикации

Transparent or translucent extruded polyamide

Номер: US20120223453A1
Автор: Claire Isabelle Michalowicz, Elizabeth E. Grimes, William Todd Rogers
Принадлежит: Arkema Inc

The invention relates to a process for forming an extruded transparent or translucent polyamide article including melt calendering to improve the physical properties and optical clarity. The polyamide article is a sheet, film, or profile.

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Номер записи: 15
06-09-2012 дата публикации

Film and uses thereof

Номер: US20120225274A1
Автор: Akifumi Kagayama, Hisako Ishikawa, Kazuo Yagi, Toshinori Matsuda, Yosuke Ono
Принадлежит: Mitsui Chemicals Inc

Disclosed is a film composed of a resin having a thiourethane bond, wherein the molar ratio (S/N) of sulfur to nitrogen contained in the resin is equal to or more than 0.8 and less than 3. According to the present invention, the film is excellent in a balance among high refractive index, low birefringence and light transmittance, and further excellent in a balance of mechanical characteristics such as toughness, hardness and dimensional stability, so that effects of deformation and the like during processing are very small, and the film is further excellent in solvent resistance as well.

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Номер записи: 16
27-09-2012 дата публикации

Optical coupling element and method of manufacturing the same

Номер: US20120243835A1
Автор: Hideto Furuyama, Michihiko Nishigaki
Принадлежит: Individual

According to one embodiment, an optical coupling element comprises an optical waveguide, a ferrule provided with a holding hole which holds the optical waveguide, electrical read frame formed on the element mounting surface of the ferrule, an optical semiconductor element which is mounted on the element mounting surface of the ferrule and connected to the electrical read frame, and a transparent adhesive which fills the gap between the optical semiconductor element and the optical waveguide. At least one side of the optical semiconductor element partially falls within a region obtained by extending the holding hole in the ferrule toward the optical semiconductor element.

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Номер записи: 17
20-12-2012 дата публикации

Method for fabricating light guide plate

Номер: US20120319314A1
Автор: Da-Wei Lin, Tai-Cherng Yu
Принадлежит: Hon Hai Precision Industry Co Ltd

A method for fabricating a light guide plate includes the following steps. Injection molding a light guide plate to obtain a light guide plate with a stub. Cutting away the stub to obtain a light guide plate with a cut edge. Providing a thermal resetting apparatus having an nano release material layer. A thermal melting temperature of the nano release material layer is higher than that of the light guide plate, heating the thermal resetting apparatus to make a temperature of the nano release material layer higher than the thermal melting temperature of the nano release material layer. And resetting the cut edge of the light guide plate by contacting the nano release material layer of the thermal resetting apparatus with the cut edge of the light guide plate to obtain a light guide plate with a smooth edge.

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Номер записи: 18
03-01-2013 дата публикации

Photochromic Polyurethane Laminate

Номер: US20130004775A1
Автор: Hannah Vu, Hao Vu, Hideyo Sugimura, Ping Fan
Принадлежит: Vision Ease LP

A photochromic polyurethane laminate wherein the photochromic polyurethane layer of the laminate has been crosslinked with a isocyanate-active prepolymer using a crosslinking agent. The crosslinking agent is formulated to have at least three functional groups that are reactive with functional groups of the polyurethane or of the isocyanate-active prepolymer. A method of making the photochromic polyurethane laminate includes steps of causing the crosslinking.

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Номер записи: 19
14-02-2013 дата публикации

Lens Array Production Method and Laminated Lens Array Production Method

Номер: US20130037976A1
Автор: Masashi Saito, Takaichi Hayashida
Принадлежит: Individual

A method of manufacturing a lens array includes the steps of feeding a first curable resin between a first array mold and a plate member and curing the first resin; separating the plate member from the first array mold; feeding a second curable resin between the first array mold and a second array mold while leaving the cured first resin on the first array mold, and curing the second resin; and removing the first array mold and the second array mold.

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Номер записи: 20
21-02-2013 дата публикации

Light emitting device and method for manufacturing the same

Номер: US20130043502A1
Автор: Hiroki Utatsu, Kenichi Koya, Michio Miyawaki, Tadaaki Ikeda
Принадлежит: Panasonic Corp

A light emitting device 10 includes a light emitting element 11 , a package 13 in which the light emitting element 11 is accommodated, and a sealing member 14 configured to seal the light emitting element 11 . The package 13 includes a base 13 B configured to hold the light emitting element 11 and a frame part 13 A vertically standing on the base 13 B so as to surround the light emitting element 11 . The sealing member 14 is embedded in a region surrounded by the frame part 13 A. The frame part 13 A includes a protruding wall 15 upwardly protruding from an upper end surface 132 a of the frame part 13 A and provided so as to surround the light emitting element 11.

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Номер записи: 21
02-05-2013 дата публикации

Method for molding an ophthalmic lens and device for applying a coating to the surface of an ophthalmic lens mold

Номер: US20130106006A1
Автор: Axel Heinrich, Halina Heidrich, Karsten Straube
Принадлежит: NOVARTIS AG

There are described a method for applying a coating to a surface of an ophthalmic lens mold. The mold includes male and female ( 20 ) mold halves, with each of the mold halves being provided with a lens forming surface ( 21 ). The method includes applying a temporary coating to at least a portion of at least one of the male and female mold halves ( 20 ), the temporary coating being capable of reducing adhesive forces between a lens forming material and the lens forming surface ( 21 ); and drying the temporary coating applied to the portion of the lens forming surface ( 21 ). Also described is a device ( 1 ) for applying such temporary coating to the portion of the lens forming surface ( 21 ) of the ophthalmic lens mold.

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Номер записи: 22
16-05-2013 дата публикации

Wafer lens member producing method, image pickup lens producing method, image pickup module producing method, and image pickup module-installed electronic device producing method

Номер: US20130118685A1
Автор: Akiko Hara
Принадлежит: Konica Minolta Advanced Layers Inc

A wafer lens member producing method includes post-curing lens portions made of a light-curing resin formed on at least one face of a substrate so as to promote curing of the light-curing resin. The post-curing includes first post-curing and second post-curing. The first post-curing performs heating at a first post-curing temperature, which is a glass transition temperature of the light-curing resin to the glass transition temperature+100° C., for 30 minutes to two hours. The second post-curing performs heating at a second post-curing temperature, which is lower than the glass transition temperature, and lower than the first post-curing temperature by 25° C. or more, for three hours to six hours.

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Номер записи: 23
16-05-2013 дата публикации

Ophthalmic lens containing a fresnel surface and method for manufacturing same

Номер: US20130120707A1
Автор: Bill Houle, Haifeng Shan, Marvin Pounders, Richard Muisener, Zeming Gou
Принадлежит: Essilor International Compagnie Generale dOptique SA

A process for manufacturing an ophthalmic lens containing a Fresnel microstructured surface inside the lens. The Fresnel lens is injection molded with a mold insert having a heat conductivity lower than the thermoplastic material used to form the Fresnel lens. A second thermoplastic material is overmolded to the Fresnel lens to cover and protect the microstructured surface. The mold insert is made from Nickel or thermoplastic. The resulting lens includes two layers having different refractive indices. The Fresnel lens is made from polycarbonate while the overmold is made from PMMA or TPU.

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Номер записи: 24
25-07-2013 дата публикации

Plastic lens manufacturing method

Номер: US20130187300A1
Автор: Aruncharoen Thitima, Jindakul Wimol, Norkaew Suphavit, Wongsewattana Prasert
Принадлежит: Hoya Corp, Hoya Lens Thailand Ltd

An aspect or the present invention relates to a method of manufacturing a plastic lens, which comprises casting a plastic lens starting material liquid into a cavity in a forming mold and conducting a polymerization reaction of the plastic starting material liquid within the cavity to provide a molded article. The forming mold is one in which two molds are disposed opposite each other, a gasket made of an elastic resin is disposed around the two molds to form the cavity, and at least one of the two molds is made of an elastic resin, one surface of the molded article is a convex surface and the other surface of the molded article is a concave surface, and the concave surface is formed by transferring a molding surface of the mold made of elastic resin.

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Номер записи: 25
25-07-2013 дата публикации

Methods, devices, and systems for injection molding contact lenses

Номер: US20130188123A1
Автор: Gregg A. Dean
Принадлежит: Gregg A. Dean

Methods, devices, and systems for manufacturing ophthalmic lenses using direct injection molding are described. The present methods, devices, and systems include a mold block having a first mold insert and a second mold insert defining a lens-shaped cavity between them. A raised non-uniform region that projects into the lens-shaped cavity is incorporated in a peripheral zone of the molding surface of at least one of the mold inserts. When an ophthalmic lens is formed using the described mold block, at least one depression is produced in the lens. A gate placed at the non-uniform region allows the depression to hide any gate witness that may form when the mold is closed or separated.

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Номер записи: 26
29-08-2013 дата публикации

Wafer lens manufacturing method

Номер: US20130221549A1
Автор: Kouichi Eguro, Nobuhiro Saruya
Принадлежит: KONICA MINOLTA INC

Since a second molding surface 103 a is separated from the second mold 42 before a first molding surface 102 a is completely separated from the first mold 41, in a state difficult to take the unbalanced force, the separating force is applied at the same time on the first and the second molding surfaces 102 a and 103 a of the substrate 101, it is possible to prevent damage to the substrate 101 at the time of mold release even if the substrate 101 is comparatively thin. Since the mold release is performed with unseparated portions remaining on each of the first and the second molding surfaces 102 a and 103 a , it is unnecessary to separately provide a step of protecting a first and a second optical surfaces 11 d and 12 d on the opposite side during the mold release, whereby a precise wafer lens 100 can be produced simply and efficiently.

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Номер записи: 27
07-11-2013 дата публикации

Method of molding, process for producing lens, molding apparatus, process for producing stamper, master production apparatus, stamper production system, and stamper production apparatus

Номер: US20130295214A1
Автор: Kunio Yoshida
Принадлежит: AJI Co Ltd

Molded articles, such as a lens, are produced by multiple repetitions of a transfer process composed of the transformation step of bringing a transfer member ( 62 ) provided with a transfer configuration area consisting of the same configuration as that of a lens part with aspherical configuration or the configuration opposed to the lens part with aspherical configuration into contact with a photohardening resin to thereby transform the photohardening resin in conformity with the transfer configuration of the transfer member ( 62 ); the hardening step of irradiating at least a transformed area of the transformed photohardening resin with light by the use of a light irradiation unit ( 60 ) to thereby attain hardening; and the departing step of letting the photohardened resin and the transfer member depart from each other.

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Номер записи: 28
26-12-2013 дата публикации

Laser reinforced direct bonding of optical components

Номер: US20130344302A1
Автор: David HÉLIE, Fabrice Lacroix, Real Vallee
Принадлежит: Individual

A method for the laser reinforced direct bonding of two optical components having a respective bonding surface and a reinforced optical assembly made thereby are provided. The method includes a first step of assembling the two optical components by direct bonding of their respective bonding surface together, thereby defining a direct-bonded interface therebetween. The method further includes a second step of reinforcing the direct-bonded interface with a weld seam including at least one substantially continuous reinforcing weld line forming a dosed shape enclosing a sealed direct-bonded region. Each weld line is inscribed by focusing ultrashort laser pulses at the direct-bonding interface so as to generate non-linear optical phenomena inducing a localized junction between the two optical components. Advantageously, embodiments of the present invention provide reinforced optical assemblies exhibiting hermetic and mechanically resistant bonds over a large area as well as negligible alteration of their optical transmission properties.

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Номер записи: 29
07-01-2021 дата публикации

MOLD-RELEASE METHOD FOR MOLDED ARTICLE, AND MOLD-RELEASE DEVICE

Номер: US20210001538A1
Автор: FUJIKAWA Takeshi, FUKUI Sadayuki
Принадлежит: Daicel Corporation

An object of the present invention is to provide a mold-release method and a mold-release device that enable removal of a high-precision molded article from a mold. The present invention provides a mold-release method for a molded article () from a mold () and a mold-release device for carrying out the mold-release method, the molded article () being formed by curing a curable material supplied to a molding surface (A) of the mold (), and having a first surface (A) onto which a patterned shape of the molding surface (A) is transferred and a second surface (B) on a back side opposite to the first surface, the method including: 1: attaching a base material () onto the entire second surface (B) of the molded article (); and 1. A mold-release method for a molded article from a mold ,the molded article being formed by curing a curable material supplied to a molding surface of the mold, and having a first surface onto which a patterned shape of the molding surface is transferred and a second surface on a back side opposite to the first surface,the method comprising:(1a) attaching a base material onto the entire second surface of the molded article; and(2a) relatively moving the base material and the mold in a direction in which the base material and the mold are separated from each other, and thereby releasing the molded article from the mold.2. The method according to claim 1 , wherein the molded article is an array in which two or more optical elements are arranged two-dimensionally on the first surface and the array has a substrate part that joins the optical elements together.3. The method according to claim 1 , wherein at least a planar part onto which the base material is attachable is present on the second surface.4. The method according to claim 1 , wherein the base material is a resin sheet.5. The method according to claim 4 , wherein the resin sheet has an adhesive layer on one surface.6. The method according to claim 1 , further comprising:(3a) peeling the base ...

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Номер записи: 30
07-01-2016 дата публикации

INJECTION MOLDING APPARATUS FOR STRUCTURED OPTICAL PARTS

Номер: US20160001479A1
Автор: IATAN George
Принадлежит:

The injection molding apparatus is provided for making highly accurate optical parts having structured reflective or deflecting optical surfaces. The apparatus includes a removable mold insert made of two or more mold insert segments. The mold insert segments are juxtaposed at mating lateral planar surfaces to form a reversed structured surface. The mold insert segments also includes a gas venting circuit having conduits formed when the mold insert segments are juxtaposed. A cooling circuit is provided in the mold insert segments. 1. An injection molding apparatus for making an optical part having a structured deflection or reflection optical surface , the injection molding apparatus including:a mold plate, the mold plate including a opening;a mold insert having a reversed structured surface to create the deflection or reflection optical surface of the optical part, the mold insert including at least two mold insert segments, each mold insert segment having a portion of the reversed structured surface and having a lateral planar surfaces;a gas venting circuit provided on the lateral planar surfaces of the mold insert segments, the gas venting circuit including a main gas venting conduit and a plurality of secondary gas venting conduits, the plurality of secondary gas venting conduits being in fluid communication with the main gas venting conduit and each of the plurality of secondary gas venting conduits being in fluid communication with the reversed structured surface through corresponding gas venting slits, each gas venting conduits and each gas venting slit having one half on one of the lateral planar surfaces and another haft on the other of the lateral planar surfaces when the mold insert segments are juxtaposed to form the mold insert; anda cooling circuit embedded into the mold insert segments for receiving a liquid coolant, the cooling circuit including cooling conduits located under the reversed structured surface of the mold insert segments to lower the ...

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Номер записи: 31
01-01-2015 дата публикации

GRADIENT INDEX LENS USING EFFECTIVE REFRACTIVE INDEX OF MICROSTRUCTURE ARRANGED IN RADIAL PATTERN, AND METHOD FOR MANUFACTURING SAME

Номер: US20150002927A1
Автор: JEONG Ki-Hun, Park Sang-gil
Принадлежит:

Provided are a gradient index lens using the effective refractive index of a microstructure operating in the terahertz frequency regions and mid-infrared regions at wavelengths of 0.8 m to 3 mm and a method for manufacturing the same. Based on the effective medium theorem, the effective refractive index is controlled by using a structure smaller than the mid-infrared and terahertz wavelength, and a gradient can be provided for the refractive index in a radial direction and in an axial direction. Thus, beams in the mid-infrared and terahertz frequency region can be converged. 1. A gradient index lens using an effective refractive index of a microstructure converging a wave of mid-infrared and terahertz frequency regions , comprising:a substrate; andmicrostructures formed on the substrate to control the effective refractive index of the substrate,wherein the microstructure has a diameter smaller than a wavelength of a wave which is incident on the substrate and has a diameter or an interval gradually increased or reduced radially or axially from a center of the substrate.2. The gradient index lens of claim 1 , wherein the substrate is a single dielectric substrate.3. The gradient index lens of claim 1 , wherein the microstructure is formed by arraying pillars or holes having the diameter smaller than the wavelength of the mid-infrared and terahertz wave on the substrate.4. The gradient index lens of claim 1 , wherein the diameter smaller than the wavelength of the mid-infrared and terahertz wave is 3 mm to 0.8 μm.5. The gradient index lens of claim 3 , wherein the microstructure is formed by arraying holes having a circular shape claim 3 , a polygonal shape claim 3 , or a composite shape on the substrate.6. The gradient index lens of claim 3 , wherein the microstructure is formed by arraying a pillar-shaped structure having a circular shape claim 3 , a polygonal shape claim 3 , or a composite shape and having a vertical section thereof formed in one of triangular ...

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Номер записи: 32
08-01-2015 дата публикации

RETARDATION PLATE MANUFACTURING METHOD

Номер: US20150008601A1
Автор: KAKUBARI Yuichi, WATABE Kenichi
Принадлежит:

A retardation plate manufacturing method for manufacturing a retardation plate that has an orientation pattern in which is formed a plurality of regions having optical axes oriented in different directions from each other, the retardation plate manufacturing method comprising arranging an unoriented light orientation layer that is to be oriented by light on a first surface of a substrate; preparing a retardation mask including an orientation pattern in which is formed a plurality of regions that have a quarter wavelength retardation plate retardation function and correspond to the plurality of regions in the orientation pattern of the retardation plate; and orienting the light orientation layer by irradiating the retardation mask with elliptically polarized light and irradiating the light orientation layer with polarized light emitted form the retardation mask. 1. A retardation plate manufacturing method for manufacturing a retardation plate that has an orientation pattern in which is formed a plurality of regions having optical axes oriented in different directions from each other , the retardation plate manufacturing method comprising:arranging an unoriented light orientation layer that is to be oriented by light on a first surface of a substrate;preparing a retardation mask including an orientation pattern in which is formed a plurality of regions that have a quarter wavelength retardation plate retardation function and correspond to the plurality of regions in the orientation pattern of the retardation plate; andorienting the light orientation layer by irradiating the retardation mask with elliptically polarized light and irradiating the light orientation layer with polarized light emitted form the retardation mask.2. The retardation plate manufacturing method according to claim 1 , whereinwidth of the plurality of regions of the retardation mask is equal to width of the plurality of regions of the retardation plate.3. The retardation plate manufacturing method ...

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Номер записи: 33
14-01-2016 дата публикации

APPARATUS FOR MANUFACTURING LIGHT GUIDE PLATE

Номер: US20160009011A1
Автор: He Hu
Принадлежит:

The present disclosure relates to the technical field of liquid crystal display. Specifically, it relates to an apparatus for manufacturing light guide plate. The apparatus comprises: a feeding unit having a slit-shaped discharge port, an extrusion unit comprising a conveying roller for conveying the raw material and an extrusion roller for extruding the raw material, and a cutting unit for cutting the light guide plate guided out of the extrusion unit, wherein an elongated recess depressing toward the interior of the extrusion roller is disposed on a roller body of the extrusion roller, in order to manufacture a light guide plate having a varying thickness. The apparatus has the advantages of high production efficiency. 1. An apparatus for manufacturing light guide plate , comprising:a feeding unit having a slit-shaped discharge port for supplying raw material of the light guide plate,an extrusion unit comprising a conveying roller for conveying the raw material and an extrusion roller for extruding the raw material, anda cutting unit for cutting the light guide plate guided out of the extrusion unit,wherein an elongated recess depressing toward the interior of the extrusion roller is disposed on a roller body of the extrusion roller, in order to manufacture a light guide plate having a varying thickness.2. The apparatus according to claim 1 , wherein the conveying roller is located at one side of the raw material and the extrusion roller is located at the other side thereof claim 1 , and the conveying roller is disposed at a position corresponding to the extrusion roller for cooperation therewith.3. The apparatus according to claim 2 , wherein the apparatus comprises only one extrusion roller claim 2 , and in the extrusion unit claim 2 , the rotating direction of the roller body of the extrusion roll and that of the roller body of the conveying roller are consistent with the advancing direction of the raw material.4. The apparatus according to claim 2 , wherein ...

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Номер записи: 34
14-01-2016 дата публикации

OPAQUE FIBER REINFORCEMENT OF COMPOSITES

Номер: US20160009032A1
Автор: Godby Larry A., Markus Alan M., Wilenski Mark S.
Принадлежит:

A composite material includes a polymeric matrix, at least one transparent region including a plurality of optically clear elements provided in the polymeric matrix and at least one opaque region including a plurality of opaque reinforcing elements provided in the polymeric matrix generally adjacent to the at least one transparent region. A structural window and a method for reinforcing a composite material are also disclosed. 116-. (canceled)17. A method for reinforcing a composite material , comprising:providing a first polymeric matrix resin;providing transparent glass elements;providing opaque elements;embedding the transparent glass elements and the opaque elements in the polymeric matrix resin;creating a prepreg;forming a composite by laying up said prepreg using said transparent glass elements and said opaque elements; andcuring said composite.18. The method of wherein the composite comprises a transparent region and an opaque region claim 17 , wherein the transparent region comprises transparent glass elements substantially aligned adjacent each other in a plane claim 17 , wherein the opaque region comprises opaque elements substantially aligned adjacent each other in the plane claim 17 , and wherein the transparent and opaque regions are arranged in a nonsuperimposed configuration.19. The method of further comprising:providing a second polymeric matrix resin different from the first polymeric matrix resin, andwherein the forming step further comprises: forming at least one transparent region and at least one opaque region, wherein the at least one transparent region is comprised of the first resin and the at least one opaque region is comprised of the second resin.20. The method of wherein the composite comprises a transparent region and a plurality of longitudinal opaque regions claim 17 , wherein one or more opaque regions extend in generally parallel relationship to the longitudinal axis of the composite material and one or more opaque regions extend in ...

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Номер записи: 35
27-01-2022 дата публикации

RESIN MEMBER, MOLD FOR MOLDING RESIN MEMBER, AND METHOD FOR MANUFACTURING RESIN MEMBER

Номер: US20220024095A1
Автор: AKAMINE Masaaki, HOSONO Akihiro, Nakano Sakura, NARITA Shuhei, SAWAI Kaname, Tanaka Yu
Принадлежит: MAZDA MOTOR CORPORATION

A resin member includes: a resin substrate; and a micro-embossed pattern and having a plurality of recesses and a plurality of protrusions. The plurality of protrusions includes: a plurality of first protrusions; and a plurality of second protrusions having a height of from ¼ to ¾ of the height of the first protrusions. A distance between peaks of two adjacent ones of the plurality of protrusions ranges from 100 μm to 500 μm. The number of the minute regions having an angle of inclination of from −10° to 10° with respect to the reference plane ranges from 78% to 95% of the number of all of the minute regions included in the micro-embossed pattern corresponding to the predetermined distance, and the number of the minute regions having an angle of inclination of from −1° to 1° ranges from 25% to 40% of the number of all of the minute regions. 1. A resin member comprising:a resin substrate; anda micro-embossed pattern formed on a surface of the resin substrate and having a plurality of recesses and a plurality of protrusions, whereina plane passing through three optional lowest points that are deepest points included in the micro-embossed pattern per unit area is used as a reference plane, and a shortest distance from the reference plane to an optional point on the micro-embossed pattern is regarded as a height of the micro-embossed pattern, a plurality of first protrusions having a height of from 15 μm to 35 μm; and', 'a plurality of second protrusions having a height of from ¼ to ¾ of the height of the first protrusions,, 'the plurality of protrusions includesa distance between peaks of two adjacent ones of the plurality of protrusions ranges from 100 μm to 500 μm,if the micro-embossed pattern corresponding to a predetermined distance in a cross section perpendicular to the reference plane is divided into minute regions each having a predetermined length in the cross section, the number of the minute regions having an angle of inclination of from ˜10° to 10° with ...

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Номер записи: 36
11-01-2018 дата публикации

FUSED DEPOSITION MODELING BASED MOLD FOR MOLDING, AND REPLICATING OBJECTS, METHOD FOR ITS MANUFACTURE AND FUSED DEPOSITION MODELING 3D PRINTER

Номер: US20180009134A1
Автор: Berben Edward Theodorus Maria, Hikmet Rifat Ata Mustafa
Принадлежит:

The invention provides a method for manufacturing a 3D item (), wherein the 3D item () comprises an outer layer () and a support structure () with cavities (), wherein the outer layer () at least partly encloses the support structure (), and wherein the method comprises: (a) a 3D printing stage comprising 3D printing with fused deposition modeling (FDM) 3D printable material () the outer layer () and the support structure () and at least partly filling the cavities () with a filler material (); and (b) a post-treatment stage comprising post treating at least part of the outer layer () for reducing surface roughness. 1. A method for manufacturing a 3D item , wherein the 3D item comprises an outer layer and a support structure with cavities , wherein the outer layer at least partly encloses the support structure , and wherein the method comprises:(a) a 3D printing stage comprising 3D printing with fused deposition modeling 3D printable material the outer layer and the support structure and at least partly filling the cavities with a filler material; and(b) a post-treatment stage comprising post treating at least part of the outer layer for reducing surface roughness.2. The method according to claim 1 , wherein the 3D item is a mold.3. The method according to claim 1 , wherein the 3D printable material comprises a curable material claim 1 , and wherein the 3D printing method includes curing at least part of the printable 3D printable material to provide 3D printed material.4. The method according to claim 1 , wherein the filler material comprises a material having a higher thermal conductivity than the support structure.5. The method according to claim 4 , wherein the filler material before filling the cavities comprises a slurry comprising one or more of metal particles claim 4 , ceramic particles claim 4 , and carbon particles claim 4 , and wherein the method further comprises a transformation stage comprising transforming the slurry in the cavities in a solid filler ...

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Номер записи: 37
11-01-2018 дата публикации

Methods and Apparatus for Positioning a Structure on a Polymer Layer

Номер: US20180009181A1
Автор: Barrows Daniel Patrick, Linhardt Jeffrey George
Принадлежит:

Methods and apparatus for positioning a structure on a polymer layer are described. A method may involve forming a first polymer layer. The method may further involve positioning, by an apparatus, a structure on the first polymer layer, where the apparatus comprises a rod having a first end that supports the structure as the structure is being positioned and a plunger located around the first end of the rod that presses the structure onto the first polymer layer as the structure is being positioned. And the method may involve forming a second polymer layer over the first polymer layer and the structure, where the first polymer layer defines a first side of a body-mountable device and the second polymer layer defines a second side of the body-mountable device opposite the first side. 1. An apparatus for placing a structure on a polymer layer , the apparatus comprising:a rod having a first end and a second end, wherein the first end of the rod is configured to support the structure as the structure is being positioned on the polymer layer via an interference fit between the structure and the first end of the rod;a plunger located around the first end of the rod, wherein the plunger is configured to press the structure onto the polymer layer as the structure is being positioned on the polymer layer;a housing; anda spring connected to the second end of the rod, wherein the spring is configured to retract into the housing during positioning of the structure.2. The apparatus of claim 1 , wherein the housing comprises a flange that is configured to receive a force to drive the housing into a transfer position claim 1 , wherein in the transfer position: (i) the plunger presses the structure onto the polymer layer and (ii) the rod retracts into the housing.3. The apparatus of claim 1 , wherein the plunger is coaxially located around the first end of the rod.4. The apparatus of claim 1 , wherein the first end of the rod comprises a non-stick coating.5. An apparatus for ...

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Номер записи: 38
12-01-2017 дата публикации

RETROREFLECTIVE SHEETING INCLUDING CUBE CORNER ELEMENTS

Номер: US20170010395A1
Автор: Smith Kenneth L.
Принадлежит:

The present disclosure is directed to lamina(e) comprising cube corner elements, a tool comprising an assembly of laminae and replicas thereof. The disclosure further relates to retroreflective sheeting. 1. Retroreflective sheeting , comprising:a plurality of cube corner elements comprising full cubes;wherein at least one cube comprises a 1-2 dihedral angle error and a 1-3 dihedral angle error that are varied in a repeating pattern;wherein at least one of the cube corner elements has three square faces and forms a hexagonal shape when viewed in plan view; andwherein at least one of the cube corner elements forms a pentagonal shape when viewed in plan view.2. The retroreflective sheeting of claim 1 , wherein at least one of the cube corner elements has at least one dihedral angle error having a magnitude between 1 arc minute and 60 arc minutes.3. The retro reflective sheeting of claim 1 , wherein at least one of the cube corner elements has three dihedral angle errors having a magnitude between 1 arc minute and 60 arc minutes.4. The retroreflective sheeting of claim 3 , wherein two of the three dihedral angle errors on a cube corner element are different from each other.5. The retroreflective sheeting of claim 3 , wherein two of the three dihedral angle errors on a cube corner element are different in magnitude from each other.6. The retroreflective sheeting of claim 3 , wherein three of the three dihedral angle errors on a cube corner element are different from each other.7. The retroreflective sheeting of claim 6 , wherein three of the three dihedral angle errors on a cube corner element are different in magnitude from each other.8. The retroreflective sheeting of claim 1 , wherein the dihedral angle errors are varied in a repeating pattern.9. The retroreflective sheeting of claim 1 , wherein more than two of the cube corner elements are in a row wherein at least one dihedral edge of the cube corner elements range from being nominally parallel to nonparallel by ...

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Номер записи: 39
10-01-2019 дата публикации

METHOD AND APPARATUS FOR CREATING COHERENT BUNDLE OF SCINTILLATING FIBERS

Номер: US20190010076A1
Автор: BULL Christopher, CRAMER Avilash, Gupta Rajiv, KINGON Angus, MORSE Theodore F., WALTZ Paul
Принадлежит:

A method and apparatus to manufacture a coherent bundle of scintillating fibers is disclosed. A method includes providing a collimated bundle having a glass preform with capillaries therethrough known in the industry as a glass capillary array, and infusing the glass capillary array with a scintillating polymer or a polymer matrix containing scintillating nanoparticles. 1. A method comprising:providing a collimated bundle having a glass preform with a plurality of capillaries therethrough known in the industry as a glass capillary array; andinfusing the glass capillary array with a scintillating polymer or a polymer matrix containing scintillating nanoparticles.2. The method of wherein a low index reflective metal coating is formed as an interfacial layer between the scintillating polymer and the glass cladding.3. The method of further comprising:placing the collimated bundle in a pressure vessel;applying pressure to the high refractive index scintillating polymer or polymer matrix;driving it into the capillaries; andapplying a back pressure to the collimated bundle, the back pressure reducing the risk of failure of the collimated bundle.4. The method of wherein the back pressure is applied by a high pressure gas.5. The method of wherein the transparent scintillating polymer is triphenylbismuth/polyvinylcarbazole claim 1 , or other scintillation polymers with a higher refractive index than the cladding.6. The method of wherein the scintillating polymer contains high refractive index nanoparticles.7. The method of wherein the high refractive index nanoparticles are zirconium dioxide (ZrO2) claim 6 , hafnium dioxide (HfO) or titanium dioxide (TiO)).8. The method of where the cladding glass is optically absorbing to the emitted photons of the scintillating material.9. The method of wherein there is a low refractive claim 8 , transparent interfacial layer between core and cladding claim 8 , with the interfacial layer being less than 1 micron in thickness claim 8 , this ...

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Номер записи: 40
14-01-2016 дата публикации

Method for manufacturing compound optical film

Номер: US20160011343A1
Автор: Da-Wei Lin, Tai-Cherng Yu
Принадлежит: Hon Hai Precision Industry Co Ltd

A compound optical film includes an unitary two-layer structure with of a light guide layer and a light reflective layer attached on the light guide layer. A number of light scattering particles are dispersed in the light guide layer adjacent to an interface between the light guide layer and the light reflective layer. The compound optical film can reduce the thickness of backlight module while the compound optical film is used in backlight module. The present art also relates to a manufacturing method for the compound optical film.

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Номер записи: 41
11-01-2018 дата публикации

OBSERVATION DEVICE

Номер: US20180011307A1
Автор: Wada Ken
Принадлежит:

In an observation device including a display device, paired ocular optical systems each include a resin lens having a shape defined by an arch and a chord, and provided with a molding gate in an outer peripheral portion of the arc shape, and is appropriately set in: a difference RC between the radius of the resin lens and the length of a line connecting the midpoint of the chord and the point on the optical axis; the diameter D of the resin lens; an angle θ between a direction connecting a midpoint of a long side of the display surface and the point on the optical axis and a direction connecting the molding gate and the point on the optical axis; and an acute angle α between directions connecting the point on the optical axis and the respective molding gates of the resin lenses in the paired ocular optical systems. 1. An observation device comprising:a display element having a rectangular display surface; anda pair of ocular optical systems for use to observe an image displayed on the display surface, whereineach of the paired ocular optical systems includes a resin lens having a shape defined by an arch and a chord on a cross section perpendicular to an optical axis,the resin lens is provided with a molding gate in a portion of an outer periphery of the shape defined by the arc, and [{'br': None, 'i': 'Rc/D<', '0.08<0.30'}, {'br': None, '−35≦θ≦35°'}, {'br': None, '0°≦|α|<40°,'}], 'the following conditional expressions are satisfiedwhere Rc is a difference between a radius of the resin lens and a length of a line connecting a midpoint of the chord and a point on the optical axis on the cross section perpendicular to the optical axis, D is a diameter of the resin lens, θ is an angle between a direction connecting a midpoint of a long side of the display surface and the point on the optical axis on the cross section perpendicular to the optical axis and a direction connecting the molding gate and the point on the optical axis on the cross section perpendicular to the ...

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Номер записи: 42
10-01-2019 дата публикации

METHOD FOR FABRICATING HIGH SAG LENS ARRAY AND HIGH SAG LENS ARRAY

Номер: US20190011608A1
Автор: Hsu Shu-Hao, Huang Teng-Te, Lai Jen-Hui
Принадлежит:

The present invention provides a method for fabricating a high sag lens array a high sag lens array fabricated by a semiconductor process. The method comprises: individually jetting an optical glue material into a plurality of lens mold cavities of a mold to form a plurality of lens parts independently; exposing the lens parts to harden the optical glue material in the lens mold cavities; jetting an optical glue layer on the lens parts; forming a transparent substrate on the optical glue layer; exposing the optical glue layer to harden the optical glue layer and combine the transparent substrate, the optical glue layer, and the lens parts; and removing the mold to form the high sag lens array. 1. A method for fabricating a high sag lens array , comprising:individually jetting an optical glue material into a plurality of lens mold cavities of a mold to form a plurality of lens parts independently;exposing the lens parts to harden the optical glue material in the lens mold cavities;jetting an optical glue layer on the lens parts;forming a transparent substrate on the optical glue layer;exposing the optical glue layer to harden the optical glue layer and combine the transparent substrate, the optical glue layer, and the lens parts; andremoving the mold to form the high sag lens array.2. The method of claim 1 , wherein the lens mold cavities have a depth of over 300 micrometers.3. The method of claim 1 , wherein the optical glue material is an ultraviolet (UV) glue material.4. The method of claim 1 , wherein the optical glue layer comprises a UV glue material.5. The method of claim 1 , wherein the transparent substrate is a glass substrate.6. A high sag lens array claim 1 , comprising:a transparent substrate;an optical glue layer, formed on the glass substrate; anda plurality of lenses, formed on the optical glue layer, having a height of over 300 micrometers.7. The high sag lens array of claim 6 , wherein the optical glue layer comprises a UV glue material.8. The high ...

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Номер записи: 43
15-01-2015 дата публикации

UNDERLYING FILM COMPOSITION FOR IMPRINTS AND PATTERN FORMING METHOD USING THE SAME

Номер: US20150014819A1
Автор: Enomoto Yuichiro, Hattori Akiko, KITAGAWA Hirotaka, OOMATSU Tadashi
Принадлежит: FUJIFILM Corporation

Provided is an underlying film composition for imprints showing a good adhesiveness with a base and capable of reducing failure or defect of resist pattern. The underlying film composition for imprints comprising a curable main component and a urea-based crosslinking agent. 1. An underlying film composition for imprints comprising a curable main component and a urea-based crosslinking agent.4. The underlying film composition for imprints of claim 3 , wherein claim 3 , in the formulae (II) to (V) claim 3 , each Rindependently represents a hydrogen atom or methyl group claim 3 , and each Rindependently represents a hydrogen atom claim 3 , hydroxy group or methoxy group.5. The underlying film composition for imprints of claim 1 , which comprises 30% by mass or more of the curable main component to total components excluding a solvent.6. The underlying film composition for imprints of claim 1 , which comprises 1 to 50% by mass of the urea-based crosslinking agent to total components excluding a solvent.7. The underlying film composition for imprints of claim 1 , which further comprises 70% by mass or more of a solvent to total components.8. The underlying film composition for imprints of claim 1 , which comprises 30% by mass or more of the curable main component and 1 to 50% by mass of the urea-based crosslinking agent to total components; and further comprises 70% by mass or more of a solvent to total components excluding a solvent.9. A cured product obtained by curing the underlying film composition for imprints described in .10. A laminate comprising a base claim 1 , an underlying film obtained by curing the underlying film composition for imprints described in claim 1 , and a cured product of a curable composition for imprints.11. The laminate described in claim 1 , wherein the curable composition for imprints contains a polymerizable compound (C) and a polymerization initiator (D).12. A pattern forming method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim ...

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Номер записи: 44
03-02-2022 дата публикации

Vehicular trailer hitching assist system

Номер: US20220032844A1
Автор: Kenneth Schofield, Lee Karner, Niall R. Lynam
Принадлежит: MAGNA ELECTRONICS INC

A vehicular trailer hitching assist system includes a rear backup camera disposed at a rear portion of a vehicle and a control disposed in the vehicle. A display device includes a video display screen operable to display video images for viewing by a driver of the vehicle. During a hitching maneuver event undertaken by the driver to hitch a trailer hitch of the vehicle to a trailer tongue of a trailer, and while the driver of the vehicle is maneuvering the vehicle to hitch the vehicle to the trailer, the control outputs video images derived from image data captured by the rear backup camera for display by the video display screen. At least one overlay overlays the displayed video images to guide the driver during the hitching maneuver. The at least one overlay aids in guiding connection of the trailer hitch of the vehicle to the trailer tongue of the trailer.

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Номер записи: 45
15-01-2015 дата публикации

COMPOUND LENS AND METHOD FOR MANUFACTURING SAME

Номер: US20150015973A1
Автор: Morooka Naoyuki, NAGAI Takayasu, OBAYASHI Tatsuhiko
Принадлежит: FUJIFILM Corporation

A compound lens produced by heating and pressing a semi-cured product of a curable resin composition containing a (meth)acrylate monomer, a non-conjugated vinylidene group-containing compound, and a photo-radical initiator and a transparent substrate arranged so as to be in contact with the semi-cured product in a state in which a molding die is filled with the semi-cured product and the transparent substrate, and obtaining a cured product by allowing the semi-cured product to be thermally polymerized, exhibits an excellent transfer property, a small number of bubble mixtures, and excellent heat resistance and crack resistance. 1. A method of manufacturing a compound lens , comprising heating and pressing a semi-cured product of a curable resin composition containing a (meth)acrylate monomer , a non-conjugated vinylidene group-containing compound , and a photo-radical initiator and a transparent substrate arranged so as to be in contact with the semi-cured product in a state in which a molding die is filled , with the semi-cured product and the transparent substrate , and obtaining a cured product by allowing the semi-cured product to be thermally polymerized , provided that the non-conjugated vinylidene group-containing compound is free from a (meth)acrylate monomer.3. The method of manufacturing a compound lens according to claim 1 , wherein the transparent substrate is a glass material.4. The method of manufacturing a compound lens according to claim 1 , wherein the transparent substrate is a glass lens.5. The method of manufacturing a compound lens according to claim 1 , wherein the semi-cured product of the curable resin composition has a complex viscosity of 10mPa·s to 10mPa·s at a frequency of 10 Hz at 25° C.6. The method of manufacturing a compound lens according to claim 1 , further comprising filling the molding die with the curable resin composition in a state of being in contact with the transparent substrate.7. The method of manufacturing a compound ...

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Номер записи: 46
18-01-2018 дата публикации

Process for Reducing the Assembly Time of Ordered Films of Block Copolymer

Номер: US20180015645A1
Автор: Chevalier Xavier, Inoubli Raber, Navarro Christophe, Nicolet Celia
Принадлежит: Arkema France

The present invention relates to a process for reducing the assembly time comprising a block copolymer (BCP). The invention also relates to the compositions used to obtain these ordered films and to the resulting ordered films that can be used in particular as masks in the lithography field. 1. A process for reducing the assembly time of an ordered film of block copolymer , said ordered film comprising a mixture of at least one block copolymer having an order-disorder transition temperature (TODT) and at least one Tg with at least one compound not having a TODT , wherein said compound is selected from the group consisting of block-copolymers , light or heat stabilizers , photo-initiators , polymeric ionic compounds , non-polymeric compounds , homopolymers , and statistical copolymers , this mixture having a TODT below the TODT of the block copolymer alone , the process comprising the steps of:mixing at least one block copolymer having a TODT and at least one compound not having a TODT, in a solvent to form a mixture;depositing the mixture on a surface; andcuring the mixture deposited on the surface at a temperature between the highest Tg of the block copolymer and the TODT of the mixture.2. The process according to claim 1 , wherein the block copolymer having a TODT is a diblock copolymer.3. The process according to claim 2 , wherein one of the blocks of the diblock copolymer comprises a styrene monomer and the other block comprises a methacrylic monomer.4. The process according to claim 3 , wherein one of the blocks of the diblock copolymer comprises styrene and the other block comprises methyl methacrylate.5. The process according to claim 1 , wherein the block copolymer not having a TODT is a diblock copolymer.6. The process according to claim 5 , wherein one of the blocks of the diblock copolymer comprises a styrene monomer and the other block comprises a methacrylic monomer.7. The process according to claim 6 , wherein which one of the blocks of the diblock ...

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Номер записи: 47
21-01-2016 дата публикации

MULTILAYER OPTICAL ADHESIVES AND METHODS OF MAKING SAME

Номер: US20160016338A1
Автор: BENSON, Hennen Daniel W., Hoffend, JR. Olester, JR. Thomas R., Radcliffe Marc D., Sherman Audrey A., Sitter Brett J., Steiner Michael L., Stradinger John J.
Принадлежит:

A multilayer optical adhesive including a first viscoelastic or elastomeric adhesive layer and a second viscoelastic or elastomeric adhesive layer. A crosslinked or soluble resin layer may be disposed between the first viscoelastic or elastomeric adhesive layer and the second viscoelastic or elastomeric adhesive layer or the first viscoelastic or elastomeric adhesive layer may be immediately adjacent to the second viscoelastic or elastomeric adhesive layer. An interface between immediately adjacent layers is structured and there is a difference in refractive indices across the interface.

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Номер записи: 48
17-01-2019 дата публикации

SILICONE OPTICS

Номер: US20190016073A1
Автор: Chen Jie, Harvey John Bryan, Marquardt Craig Eugene, McCanless Forrest Starnes, Weiss Daniel Aaron, Wu Yinan
Принадлежит:

Silicone-containing light fixture optics. A method for manufacturing an optical component may include mixing two precursors of silicone, opening a first gate of an optic forming device, moving the silicone mixture from the extrusion machine into the optic forming device, cooling the silicone mixture as it enters the optic forming device, filling a mold within the optic forming device with the silicone mixture, closing the first gate, and heating the silicone mixture in the mold to at least partially cure the silicone. Alternatively, a method for manufacturing an optical component may include depositing a layer of heat cured silicone optical material to an optical structure, arranging one or more at least partially cured silicone optics on the layer of heat cured silicone optical material, and heating the heat cured silicone optical material to permanently adhere the one or more at least partially cured silicone optics to the optical structure. 1. A method for manufacturing an optical component , the method comprising:mixing two precursors of silicone;moving the silicone mixture from an extrusion machine into an optic forming device;cooling the silicone mixture;extruding the silicone mixture through a die while heating the silicone mixture; andcutting the optical component at a desired length.2. The method of claim 1 , further comprising:co-extruding one or more additional elements with the silicone mixture such that the one or more additional elements are at least partially encapsulated by the optical component.3. The method of claim 2 , whereinthe additional elements comprise one or more brackets, a first lens, and a second lens.4. The method of claim 3 , whereinan interface between the optical component and the first existing lens comprises an interstitial interface that contains no free air between the two materials, and the interstitial interface increases light throughput efficiency.5. The method of claim 2 , whereinthe one or more additional elements comprise ...

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Номер записи: 49
17-01-2019 дата публикации

HIGH TG MONOLITHIC POLY(VINYL ACETAL) SHEET

Номер: US20190016096A1
Автор: Farhoudi Yalda, Karagiannis Aristotelis, Szlosek Megan L.
Принадлежит: Solutia Inc.

A polyvinyl acetal poly(vinyl acetal), such as polyvinyl butyral, resin formulation, a method of extruding poly(vinyl acetal) resins, and related materials and products that provide for monolithic poly(vinyl acetal) sheets and glass panes having high Tg of at least 50° C. and high modulus at acceptable rates as indicated by their high melt flow index. This is made possible by a reduction in the amount of plasticizer while using a low molecular weight resin not to exceed 160,000 to obtain a thermoplastic resin having a high melt flow index and high Tg. The articles made with these monolithic interlayer sheets can be used in applications that require good modulus at outdoor temperatures. 1. A monolithic interlayer sheet formed from a composition comprising:(A) poly(vinyl acetal) resin in an amount of at least 60 wt. % based on the weight of the composition, wherein the Mw of the poly(vinyl acetal) resin does not exceed 150,000; and(B) a plasticizer in an amount of from 5 to 20 parts per one hundred parts of said poly(vinyl acetal) resin;wherein said interlayer sheet has a Tg of at least 46° C. and a melt flow index (“MFI”) of at least 0.65 grams/10 minutes when measured at 190° C. at a load of 2.16 kilograms, andwherein the interlayer sheet has a modulus E′ at 40° C. of at least 400,000,000 pascals and has a thickness of at least 5 mils.2. The interlayer sheet of claim 1 , wherein said composition has a Tg of at least 50° C.3. The interlayer sheet of claim 1 , wherein said composition has a Tg of at least 55° C.4. The interlayer sheet of claim 1 , wherein said composition has an MFI of at least 0.9.5. The interlayer sheet of claim 1 , wherein said composition has an MFI of at least 1.2.6. The interlayer sheet of claim 1 , wherein said composition contains at least 80 wt. % poly(vinyl acetal) resin.7. The interlayer sheet of claim 1 , wherein the Mw of the poly(vinyl acetal) resin does not exceed 140 claim 1 ,000.8. The interlayer sheet of claim 1 , wherein the Mw of ...

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Номер записи: 50
17-01-2019 дата публикации

HIGH TG MONOLITHIC POLY(VINYL ACETAL) SHEET

Номер: US20190016097A1
Автор: Farhoudi Yalda, Karagiannis Aristotelis, Szlosek Megan L.
Принадлежит: Solutia Inc.

A polyvinyl acetal poly(vinyl acetal), such as polyvinyl butyral, resin formulation, a method of extruding poly(vinyl acetal) resins, and related materials and products that provide for monolithic poly(vinyl acetal) sheets and glass panes having high Tg of at least 50° C. and high modulus at acceptable rates as indicated by their high melt flow index. This is made possible by a reduction in the amount of plasticizer while using a low molecular weight resin not to exceed 160,000 to obtain a thermoplastic resin having a high melt flow index and high Tg. The articles made with these monolithic interlayer sheets can be used in applications that require good modulus at outdoor temperatures. 1. A monolithic interlayer sheet formed from a composition comprising:(A) poly(vinyl acetal) resin in an amount of at least 60 wt. % based on the weight of the composition, wherein the Mw of the poly(vinyl acetal) resin does not exceed 150,000; and(B) a plasticizer in an amount of from 5 to 20 parts per one hundred parts of said poly(vinyl acetal) resin;wherein said interlayer sheet has a Tg of at least 46° C. and a melt flow index (“MFI”) of at least 0.65 grams/10 minutes when measured at 190° C. at a load of 2.16 kilograms, andwherein the interlayer sheet has a modulus E′ at 40° C. of at least 400,000,000 pascals and has a thickness of at least 5 mils.2. The interlayer sheet of claim 1 , wherein said composition has a Tg of at least 50° C.3. The interlayer sheet of claim 1 , wherein said composition has a Tg of at least 55° C.4. The interlayer sheet of claim 1 , wherein said composition has an MFI of at least 0.9.5. The interlayer sheet of claim 1 , wherein said composition has an MFI of at least 1.2.6. The interlayer sheet of claim 1 , wherein said composition contains at least 80 wt. % poly(vinyl acetal) resin.7. The interlayer sheet of claim 1 , wherein the Mw of the poly(vinyl acetal) resin does not exceed 140 claim 1 ,000.8. The interlayer sheet of claim 1 , wherein the Mw of ...

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Номер записи: 51
22-01-2015 дата публикации

MOLDED PRODUCT MANUFACTURING APPARATUS, AND MOLDED PRODUCT MANUFACTURING METHOD

Номер: US20150021829A1
Автор: HANATO Hiroyuki, Nakahashi Takahiro
Принадлежит:

A molded product manufacturing method and a molded product manufacturing apparatus are realized, each of which has improved quality and productivity of a molded product. A pressure to be applied to an upper mold (ML) and a lower mold (ML) is reduced in stages during a process from a start of decrease in internal temperatures of the upper mold (ML) and the lower mold (ML) to a complete mold-release of a resin component (W). This prevents an excessive load from being applied to the resin component (W) which has been molded but has not been mold-released. 1. A molded product manufacturing apparatus , comprising:a mold for molding a heat-curable resin;a pressure control section for controlling a pressure which is applied to the mold; anda temperature control section for controlling an internal temperature of the mold,the temperature control section maintaining a heating temperature of an interior of the mold at a given temperature while a curing reaction of the heat-curable resin is progressing so that the heat-curable resin is molded, and thereafter,during a process for decreasing the internal temperature of the mold, the pressure control section reducing in stages the pressure which is being applied to the mold.2. The molded product manufacturing apparatus as set forth in claim 1 , wherein claim 1 , while the pressure control section is applying claim 1 , to the mold claim 1 , a second pressure which is higher than a first pressure that is an initial pressure applied to the mold when the heat-curable resin starts to be molded claim 1 , the temperature control section applies claim 1 , to the heat-curable resin claim 1 , heat whose amount is less than an amount which is necessary for the heat-curable resin to be completely cured; andthe temperature control section cools the mold while the pressure control section is applying, to the mold, a third pressure which is lower than the second pressure but is higher than the first pressure.3. The molded product manufacturing ...

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Номер записи: 52
17-04-2014 дата публикации

Light guide plate, and method and mold for manufacturing the same

Номер: US20140104884A1
Автор: Kai Yan, Kun Lu, Zhanchang Bu
Принадлежит: Beijing BOE Display Technology Co Ltd, BOE Technology Group Co Ltd

The present invention provides a light guide plate and a method and a mold for manufacturing the same. The light guide plate comprises at least one incident surface, an exiting surface and a bottom surface, the exiting surface and bottom surface being disposed facing to each other and both being connected to the incident surface, the light guide plate having a cavity formed therein, wherein light incident from the incident surface exits the exiting surface after refracted and/or reflected by the cavity. With the light guide plate, light energy loss can be reduced and brightness of pictures can be improved.

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Номер записи: 53
22-01-2015 дата публикации

LIGHT GUIDE PLATE TRANSFER MOLDING METHOD, LIGHT GUIDE PLATE, AND PLANAR LIGHT SOURCE APPARATUS

Номер: US20150022761A1
Автор: KURATA Gouo
Принадлежит:

A light guide plate transfer molding method for performing transfer molding of a light guide plate using a first mold and a second mold, includes performing, on a resin material, transfer molding of a first pattern and a second pattern that are provided on a transfer face of the first mold. The first pattern changes with a specific interval P serving as one period. The second pattern changes with one or two or more periods that correspond to 1/Na of the interval P. Na is a positive integer that satisfies Na≦m, m being a specific positive integer. 1. A light guide plate transfer molding method for performing transfer molding of a light guide plate using a first mold and a second mold , the method comprising:performing, on a resin material, transfer molding of a first pattern and a second pattern that are provided on a transfer face of the first mold,wherein the first pattern changes with a specific interval P serving as one period, andwherein the second pattern changes with one or two or more periods that correspond to 1.01/Na of the interval P,where Na is a positive integer that satisfies Na≦m, m being a specific positive integer.2. The light guide plate transfer molding method according to claim 1 ,wherein among the first mold and the second mold, at least the first mold has a transfer face, andwherein the transfer face has an area smaller than the area of the resin material.3. The light guide plate transfer molding method according to claim 1 , further comprising:performing, on another surface of the resin material, transfer molding of a third pattern or a fourth pattern that are provided on the transfer face of the second mold,wherein the third pattern changes with one or two or more periods that correspond to 1/Nb of the interval P,where Nb is a positive integer that satisfies Nb≧m+1, m being a specific positive integer, and the fourth pattern not having periodicity.4. The light guide plate transfer molding method according to claim 1 ,wherein the period of the ...

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Номер записи: 54
22-01-2015 дата публикации

Low loss passive optical hub for use in the plastic optical fiber networks

Номер: US20150023638A1
Автор: Charles Lo
Принадлежит: Honeywell International Inc

A node for a low loss passive optical hub is provided. The low loss passive optical hub includes a 1:N-split fiber and a plastic-optical fiber. The 1:N-split fiber has a fused-fractional end and N second-fractional ends. The 1:N-split fiber is formed from N sub-fibers. The N sub-fibers each have a first-fractional end and a second-fractional end. The N first-fractional ends are fused to form the fused-fractional end. The plastic-optical fiber has a first end and a second end. The first end of the plastic-optical fiber is optically coupled to the fused-fractional end of the 1:N-split fiber.

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Номер записи: 55
28-01-2016 дата публикации

Polarizing plate and method for manufactureing the same

Номер: US20160025909A1
Автор: Jong hoon YEO
Принадлежит: Samsung SDI Co Ltd

A polarizing plate includes a polarizer and a protective film formed on at least one surface of the polarizer. A transverse direction (TD) shrinkage stress ratio SR A of the polarizing plate ranges from about 1% to about 10%, as calculated using Equation 1: SR A (%)=( S 1/ S 2)×100   (1) In Equation 1, S1 is the TD shrinkage stress of the protective film, and S2 is the TD shrinkage stress of the polarizer.

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Номер записи: 56
28-01-2016 дата публикации

AN OPTICAL ELEMENT, AN OPTICAL SCANNING DEVICE, A MANUFACTURING METHOD OF THE OPTICAL ELEMENT, AND A MOLDING DIE

Номер: US20160025969A1
Автор: ARAKAWA Takao, Hara Shinichiro, KANEKO Naoki, Majima Toshiyuki, NAITO Atsushi, Takagi Hiroshi
Принадлежит:

The optical element is a long optical element obtained by detaching a long main body part connected to a runner part via a gate part including an optical part from the gate part and chipping the detached main body, the optical part including at least a first optical surface to allow light to pass there through or to reflect light. The first optical surface has a curved surface that is curved on the short direction at least at the longitudinal end, while the first edge of the first optical surface side on the end surface of gate part side in the main body part is curved according to the curved surface example of the first optical surface. The boundary surface between the main body part and the gate part is formed so as to be narrower than the end surface of the gate part side of the main body part. At least the distance between the site corresponding to the effective region on the first optical surface at the first edge and the site corresponding to the effective region on the first optical surface at the second edge of the first optical surface side on the boundary surface is uniformly formed. 1. An optical element , obtained by detaching a long main body part connected to a runner part via a gate part including an optical part from the gate part and chipping the detached main body , the optical part including at least a first optical surface to allow light to pass therethrough or to reflect light , whereinthe first optical surface has a curved surface that is curved on the short direction at least at the longitudinal end, while the first edge of the first optical surface side on the end surface of gate part side in the main body part is curved according to the curved surface example of the first optical surface,the boundary surface between the main body part and the gate part is formed so as to be narrower than the end surface of the gate part side of the main body part, andat least the distance between the site corresponding to the effective region on the first ...

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Номер записи: 57
28-01-2016 дата публикации

Molded Lens

Номер: US20160026006A1
Автор: Blacker Richard, Kunkel James, Olund David
Принадлежит: Vision Ease, LP

A composite ophthalmic lens having a thin functional first molded portion that is fused and/or re-molded during formation of a second, transparent molded portion. 1. A composite ophthalmic lens comprising:a functional laminate or film;a tinted layer of material molded to a desired shape;a non-tinted layer of material molded to the tinted layer of material and the functional laminate.2. The composite ophthalmic lens of wherein the tinted layer of material is formed by injection molding.3. The composite ophthalmic lens of wherein the tinted layer of material comprises a permanent color dispersed uniformly throughout the tinted layer of material.4. The composite ophthalmic lens of wherein the desired shape of the tinted layer of material comprises a base curve.5. The composite ophthalmic lens of wherein the tinted layer of material has a uniform thickness.6. The composite ophthalmic lens of wherein the tinted layer of material has a thickness of approximately 0.5 to 2.5 millimeters.7. The composite ophthalmic lens of wherein the non-tinted layer of material is injection molded directly onto a concave surface of the tinted layer of material.8. The composite ophthalmic lens of wherein the functional laminate comprises a functional attribute selected from the group consisting of: anti-reflection claim 1 , anti-fogging claim 1 , hard coating claim 1 , polarization claim 1 , photochromism claim 1 , and easy-cleaning.9. A composite ophthalmic lens comprising:a non-tinted layer of material molded to a side of a molded tinted layer of material having a substantially uniform thickness;a functional laminate molded to a side of the non-tinted layer of material;the non-tinted layer of material and the tinted layer of material formed of substantially the same type of polymeric resin.10. The composite ophthalmic lens of wherein the composite ophthalmic lens is formed by injection molding.11. The composite ophthalmic lens of wherein the functional laminate comprises a functional ...

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Номер записи: 58
28-01-2016 дата публикации

Stabilized Thin Lens

Номер: US20160026008A1
Автор: Dodge Justin, Olund David
Принадлежит: Vision Ease, LP

A thin ophthalmic lens stabilized through incorporation of flange around all or a portion of a perimeter of the thin lens. 1. A stabilized ophthalmic thin lens comprising:a thin lens having a perimeter; anda flange extending from the perimeter.2. The stabilized thin lens of wherein the thin lens has a thickness of 0.8 to 2. 5 millimeters.3. The stabilized thin lens of wherein the thin lens substrate comprises a dye.4. The stabilized thin lens of wherein the thin lens comprises a functional film.5. The stabilized thin lens of wherein the flange has a width of 5 to 15 millimeters.6. The stabilized thin lens of wherein a thickness of the thin less is greater than a thickness of the flange.7. The stabilized thin lens of wherein the flange is formed symmetrically about the thin lens.8. A stabilized ophthalmic thin lens comprising:a round, unfinished thin lens; anda round flange extending out ward from a perimeter of the thin lens.9. The stabilized thin lens of wherein the thin lens has a thickness of 0.8 to 2. 5 millimeters.10. The stabilized thin lens of wherein a best fit plane formed through the thin lens is parallel to a plane defined by the flange.11. The stabilized thin lens of wherein the thin lens comprises a functional film.12. The stabilized thin lens of wherein the thin lens comprises a dye.13. The stabilized thin lens of wherein a thickness of the thin lens is greater than a thickness of the flange.14. The stabilized thin lens of wherein the flange is formed symmetrically about the thin lens.15. A method for stabilizing a thin lens comprising:forming a thin lens having a perimeter; andforming a flange extending from the perimeter.16. The method of wherein the step of forming a thin lens having a perimeter comprises forming a thin lens by injection molding.17. The method of wherein the step of forming a thin lens having a perimeter comprises forming a thin lens that has a thickness of 0.8 to 2.5 millimeters.18. The method of wherein the step of forming a thin ...

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Номер записи: 59
26-01-2017 дата публикации

Rubbing Cloth Attaching Device

Номер: US20170023812A1
Автор: Jing Yangkun
Принадлежит:

A rubbing cloth attaching device including a bracket; a feeding device mounted at the bracket to deliver a rubbing cloth; a detection device mounted at the bracket to detect a delivery rate of the rubbing cloth; a cutting carrier device movably cooperating with the bracket; a cutting device movably mounted at the cutting carrier device; a first driving device configured to drive the cutting carrier device; a second driving device configured to drive the cutting device; and a control system configured to calculate a length of delivered rubbing cloth based on the delivery rate, and control the first driving device to drive the cutting carrier device to move in a delivering direction of the rubbing cloth at the delivery rate and control the second driving device to drive the cutting device to move in perpendicular to the delivering direction upon the calculated length reaching a first predetermined value. 1. A rubbing cloth attaching device , comprising:a bracket;a feeding device mounted at the bracket and configured to deliver a rubbing cloth;a detection device mounted at the bracket, comprising a rate detection module configured to detect a delivery rate of the rubbing cloth;a cutting carrier device movably cooperating with the bracket;a cutting device movably mounted at the cutting carrier device;a first driving device configured to drive the cutting carrier device to move;a second driving device configured to drive the cutting device to move with respect to the cutting carrier device; anda control system configured to calculate a length of delivered rubbing cloth based on the delivery rate detected by the detection device, and to control the first driving device to drive the cutting carrier device to move in a delivering direction of the rubbing cloth at the delivery rate of the rubbing cloth and also control the second driving device to drive the cutting device to move in a direction perpendicular to the delivering direction of the rubbing cloth upon the ...

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Номер записи: 60
28-01-2021 дата публикации

MOLDED ARTICLE MANUFACTURING METHOD

Номер: US20210023753A1
Автор: Akutsu Dai
Принадлежит: KONICA MINOLTA, INC.

The present invention provides a molded article manufacturing method that is simple but does not leave a holding mark on an optical film. By the molded article manufacturing method, the functional surface of an optical film that is not greater than 10 nm in the Ra value of surface roughness is attached to the optical surface forming portion of an injection mold that is not greater than 10 nm in the Ra value of surface roughness, so that the injection mold is made to hold the optical film. A molten resin is supplied into a mold space formed by the injection mold, and the molten resin is hardened to form a molded article body. The molded article body and the optical film are integrated. 1. A molded article manufacturing method comprising:causing an injection mold to hold an optical film, by attaching a functional surface of the optical film to an optical surface forming part of the injection mold, an Ra value of surface roughness of the injection mold being not greater than 10 nm, an Ra value of surface roughness of the optical film being not greater than 10 nm; andforming a molded article body and integrating the molded article body and the optical film, the molded article body being formed by supplying a molten resin into a mold space formed by the injection mold and hardening the molten resin.2. The molded article manufacturing method according to claim 1 , wherein a total thickness of the optical film is not smaller than 25 μm and not greater than 300 μm.3. The molded article manufacturing method according to claim 1 , wherein the optical film includes a functional layer on a functional surface side.4. The molded article manufacturing method according to claim 3 , wherein the functional layer is a hard coat layer.5. The molded article manufacturing method according to claim 4 , wherein the hard coat layer is made of a silicone resin.6. The molded article manufacturing method according to claim 1 , wherein the causing the injection mold to hold the optical film ...

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Номер записи: 61
28-01-2021 дата публикации

METHOD FOR PRODUCING A LENS ELEMENT

Номер: US20210023754A1
Автор: BRANDT Hans-Jürgen, WODAK Horst
Принадлежит: DOCTER OPTICS SE

The invention relates to a method for producing a lens element (), in particular for illumination purposes, in particular for producing a headlight lens () for a vehicle headlight, in particular for a motor vehicle headlight (). 120.-. (canceled)21. A method of producing an optical lens element , the method comprising:injection molding an injection-molding material into a first injection mold to form a pre-molded part comprising at least a first preform and at least a first sprue/runner/gate connected to the at least first preform, wherein the injection-molding material is a liquefied transparent plastic;cooling the pre-molded part outside the first injection mold; andovermolding the at least first preform using the second injection mold to form an injection-molded part comprising at least a first optical lens element and an overall sprue/runner/gate formed from the first sprue/runner/gate and a second sprue/runner/gate.22. The method of claim 21 , wherein first sprue/runner/gate forms a partial wall of a cavity of the second sprue/runner/gate.23. The method of claim 22 , wherein the first optical lens element comprises an optically active lens body and a non-optically active rim claim 22 , wherein the second sprue/runner/gate is connected directly to the optical lens body.24. The method of claim 21 , wherein the first optical lens element comprises an optically active lens body and a non-optically active rim claim 21 , wherein the second sprue/runner/gate is connected directly to the optical lens body.25. The method of claim 22 , wherein the first optical lens element comprises an optically active lens body and a non-optically active rim claim 22 , wherein the second sprue/runner/gate is connected directly to the optical lens body and not indirectly via the non-optically active rim.26. The method of claim 21 , wherein the first optical lens element comprises an optically active lens body and a non-optically active rim molded by means of the second injection mold ...

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Номер записи: 62
29-01-2015 дата публикации

METHOD FOR PRODUCING MOLD FOR TRANSFERRING FINE PATTERN, METHOD FOR PRODUCING SUBSTRATE HAVING CONCAVE-CONVEX STRUCTURE USING SAME, AND METHOD FOR PRODUCING ORGANIC EL ELEMENT HAVING SAID SUBSTRATE HAVING CONCAVE-CONVEX STRUCTURE

Номер: US20150028325A1
Автор: FUKUDA Maki, MASUYAMA Satoshi, Nishimura Suzushi, Seki Takashi
Принадлежит:

A mold for transferring a fine pattern, suitable for producing a substrate having a concave-convex structure such as a diffraction grating, can be provided by a simple process and with a high throughput. A method for producing a mold for transferring a fine pattern includes: a step of coating a surface of a base member with a solution containing a block copolymer and polyalkylene oxide; a solvent phase-separation step of phase-separating the block copolymer under a presence of vapor of an organic solvent so as to obtain a block copolymer film of the block copolymer, the block copolymer film having a concave-convex structure on a surface thereof and a horizontal cylinder structure in an interior thereof; a step of stacking a metal layer by electroforming; and a step of releasing the base member having the concave-convex structure formed thereon from the metal layer. 1. A method for producing a mold for transferring a fine pattern , comprising:a step of coating a surface of a base member with a solution containing a block copolymer and polyalkylene oxide, the block copolymer being composed of at least first and second polymer segments;a solvent phase-separation step of phase-separating the block copolymer contained in the solution, with which the surface of the base member is coated, under a presence of vapor of an organic solvent so as to obtain a block copolymer film of the block copolymer, the block copolymer film having a concave-convex structure on a surface thereof and a horizontal cylinder structure in an interior thereof;a step of forming a seed layer on the concave-convex structure of the block copolymer film;a step of stacking a metal layer on the seed layer by electroforming; anda step of releasing the base member, on which the concave-convex structure is formed, from the metal layer.2. The method for producing the mold according to claim 1 , wherein a volume ratio between the first and second polymer segments in the block copolymer is in a range of 4:6 to ...

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Номер записи: 63
29-01-2015 дата публикации

Method For Creating A Viewing Screen Having An Injection Overmolded Insert

Номер: US20150029586A1
Автор: CLERC Didier, LEDIEN Franck, MARTINS Sébastien
Принадлежит:

The invention relates to a method for creating a viewing screen () having an injection overmolded insert (). Said method includes the steps of: placing an insert (), to be overmolded, into an injection mold (); holding the insert () by at least one suction nozzle () built into the injection mold (); injecting, into the mold (), a thermoplastic material for forming a mechanical substrate layer for the viewing screen; and removing the thus-formed viewing screen () from the mold.

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Номер записи: 64
29-01-2015 дата публикации

Retardation film and production method therefor, polarizing plate, and display device

Номер: US20150029587A1
Автор: Nao Murakami, Takashi Shimizu, Toshiyuki Iida
Принадлежит: Nitto Denko Corp

Provided is a producing method for a retardation film with a reverse wavelength dispersion property, which is highly reliable in terms of a small wavelength dispersion change and is low in display unevenness due to a position dependence of a retardation variation. The production method is designed for a retardation film which satisfies the following formulas (1) and (2): 0.7<Re 1 [450]/Re 1 [550]<0.97 - - - (1); and 1.5×10 −3 <Δn<6.0×10 −3 - - - (2) (where: Re 1 [450] and Re 1 [550] represent, respectively, in-plane retardation values thereof as measured by using light of a wavelengths of 450 nm and light of a wavelength of 550 nm, at 23° C.; and Δn represents an in-plane birefringence thereof as measured by using light of a wavelength of 550 nm). This method comprises: a step of continuously conveying and supplying a long polymer film; a stretching step of stretching the polymer film in a direction transverse to a conveyance direction; a first shrinkage step of, after the stretching step, causing the polymer film to shrink in the transverse direction; and a second shrinkage step of, after the first shrinkage step, causing the polymer film to shrink in the transverse direction, wherein a shrinkage temperature T 1 (° C.) in the first shrinkage step and a shrinkage temperature T 2 (° C.) in the second shrinkage step satisfy the following formula (3): 1<(T 1 −T 2 )≦10 - - - (3).

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Номер записи: 65
02-02-2017 дата публикации

Optical element manufacturing method

Номер: US20170028657A1
Автор: Jungo Kondo, Keiichiro Asai, Shoichiro Yamaguchi, Toshihiro Tomita
Принадлежит: NGK Insulators Ltd

It is produced an optical element including a support substrate, a clad layer provided on the support substrate, an optical material layer provided on the clad layer and a fine pattern formed in the optical material layer. The optical element has a warpage of +70 μm or more and +2.0 mm or less. At least a resin layer is formed on the optical material layer. It is used a mold with a design pattern corresponding to the fine pattern formed therein. The design pattern is transferred to the resin layer by an imprinting method. The fine pattern is formed in the optical material layer by a dry etching method. The mold is capable of being deformed conforming to a curve of the resin layer.

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Номер записи: 66
04-02-2016 дата публикации

Molding method and mold therefor

Номер: US20160031123A1
Автор: Hitoshi Tsujikawa, Osamu Mizoguchi, Takayuki Nomura, Yoshiki Ikeda
Принадлежит: KAGA SANGYO CO Ltd

A cap filled with fluid sealant is produced for subsequent attachment to an exposed portion of a fastener, such as a bolt head. The cap has a shell made of a synthetic resin formed in a generally hemispherical, hollow shape, and a recess defined by an inner surface of the shell in a generally hemispherical shape. The method includes filling the recess with a fluid sealant, which contains a mixture of a thermosetting substance and a curing agent that is freezable prior to curing, such that while the sealant is frozen, no curing takes place, and when the sealant is subsequently heated and thawed, its original fluidity is restored and curing of the thermosetting substance restarts. The sealant is then frozen while the sealant is filled in the cap. Subsequently the sealant is thawed and any condensation that forms on the sealant or the cap during the thawing is removed by drying.

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Номер записи: 67
17-02-2022 дата публикации

METHOD FOR PROVIDING A MALE MOLD HALF FOR MOLDING A TORIC OPHTHALMIC LENS AT A PREDETERMINED TARGET ROTATIONAL ORIENTATION

Номер: US20220048261A1
Автор: Bernard Jan, Heidrich Halina, Jetzlaff Eduard, Lieb Steffen, Schuessler Udo, Schwab Matthias, Tonn Thomas
Принадлежит:

A method of providing a male mold half () for molding a toric contact lens at a predetermined target rotational orientation is disclosed. The male mold half comprises a front face () having a toric convex lens-forming surface () and a rear face () The method comprises the steps of: 2515351121. A method according to claim 1 , wherein centering the gripper () and the male mold half () relative to each other is performed by engaging a centering surface portion () of the gripper () with a centering surface portion () provided on the male mold half ().3525545. A method according to claim 2 , wherein the centering surface portion () of the gripper () is a conical portion claim 2 , for example a chamfer claim 2 , tapering towards a distal end face () of the gripper ().411111311125112111511151. A method according to claim 3 , wherein the rear face () of the male mold half () includes a cylindrical portion extending in a direction coaxial with the central axis () of the male mold half () and forming the centering surface portion () thereof claim 3 , and wherein the method further comprises introducing the gripper () into the cylindrical portion () on the rear face () of the male mold half () until the conical portion of the gripper () engages the cylindrical portion on the rear face () of the male mold half () thereby causing centration of the gripper () and the male mold half () relative to each other.511111411411311151151151131. A method according to claim 4 , wherein the rear face () of the male mold half () further comprises an annular surface () adjoining the cylindrical portion at a distal end of the cylindrical portion claim 4 , the annular surface () extending radially inwardly in a plane perpendicular to the central axis () of the male mold half () and having at least one pair of projections () arranged thereon claim 4 , the projections () of each pair of the at least one pair of projections () being arranged angularly spaced from one another by 180 degrees in the ...

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Номер записи: 68
31-01-2019 дата публикации

METHOD OF MOLDING A THERMOPLASTIC RESIN ARTICLE AND APPARATUS FOR MOLDING SAME

Номер: US20190030784A1
Автор: Aoya Masaki, Iwasaki Tsutomu, Kimura Satoo
Принадлежит: TOYO SEIKAN GROUP HOLDINGS, LTD.

Aimed at providing a method for molding a thermoplastic resin product and a molding apparatus therefor that enable productivity, transfer quality or the like to be improved. Provided is a method for molding a thermoplastic resin product that includes a heating step, a transfer step, a cooling step and a mold-releasing step, and wherein, in the heating step, a stamper is irradiated with infrared rays in a state where a cooling member is not irradiated with infrared rays, and at least in the final stage of the transfer step, the stamper and the cooling member are brought into contact. 1. An apparatus for molding a thermoplastic resin product comprising:a heating apparatus for conducting infrared radiation heating by using a light source;a stamper that is radiatingly heated by infrared rays emitted from the light source;a cooling member that is brought into contact with the stamper that has been radiatingly heated to cool the stamper;a first mold having an advancing/retreating means that allows the cooling member to advance to or retreat from the irradiation path of infrared rays;a second mold that holds a thermoplastic resin to which the structure of the shape-forming surface of the stamper is transferred; anda stamp-holding means for holding the stamper in a relatively movable manner in order to allow the stamper and the cooling member to contact with or separate from each other;whereinin the state where the cooling member is retreated from the irradiation path of infrared rays, the stamper is irradiated with infrared rays emitted from the heating apparatus, thereby to radiatingly heat the stamper; andat least in the final stage of the transfer, the stamper is brought into contact with the cooling member that has entered the irradiation path of infrared rays, whereby the cooling member reinforces the stamper.2. The apparatus for molding the thermoplastic resin product according to claim 1 , wherein the stamper-holding means has an energizing means that energizes the ...

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Номер записи: 69
31-01-2019 дата публикации

Methods of producing three-dimensional objects from materials having multiple mechanisms of hardening

Номер: US20190031911A1
Автор: James Goodrich, Jason P. Rolland, Joseph M. Desimone, Justin POELMA, Kai Chen, Lloyd M. Robeson, Robert PINSCHMIDT
Принадлежит: Carbon Inc

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.

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Номер записи: 70
04-02-2021 дата публикации

APPARATUS AND METHODS FOR MOLDING RIGID OCULAR LENSES

Номер: US20210031471A1
Автор: Newman Stephen D.
Принадлежит:

One embodiment of a rigid gas permeable ocular lens may be formed by a process including forming a portion of a mold including a first side having a profile shaped to form an anterior surface of the rigid gas permeable ocular lens, applying a liquid lens material to the first side of the portion of the mold, and at least partially curing the liquid lens material to form the rigid gas permeable ocular lens. Methods of forming molds for rigid gas permeable ocular lenses, including molds for casting rigid gas permeable ocular lenses having a desired surface smoothness and desired dimensional tolerances are also provided. 1. A method of forming a rigid gas permeable orthokeratology lens , comprising:forming at least a portion of a contact lens mold including a first surface having a profile shaped to form an anterior surface of the orthokeratology lens;forming at least a portion of the contact lens mold including a second surface having a profile shaped to form a posterior surface of the orthokeratology lens;applying a liquid lens material between the first surface and the second surface of the contact lens mold; andat least partially curing the liquid lens material in the contact lens mold to form the orthokeratology lens.2. The method of claim 1 , wherein at least one surface of the rigid gas permeable orthokeratology lens has an Rroughness of less than about 5 nanometers.3. The method of claim 2 , further comprising cast molding the rigid gas permeable orthokeratology lens.4. The method of claim 2 , wherein the at least a portion of the mold is free of polishing prior to forming the rigid gas permeable orthokeratology lens to produce the rigid gas permeable orthokeratology lens with the Rroughness of less than about 5 nanometers.5. The method of claim 1 , wherein at least partially curing the liquid lens material comprises exposing the liquid lens material to actinic radiation.6. The method of claim 1 , wherein: machining a first blank to form a male injection mold ...

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Номер записи: 71
05-02-2015 дата публикации

Method For Producing Polarizing Lenses, And Polarizing Lens Obtained By Said Method

Номер: US20150036097A1
Автор: CLERC Didier, LEDIEN Franck, MARTINS Sébastien
Принадлежит:

The invention relates to a polarizing lens consisting, in order, of a polyamide mechanical substrate, a polyvinyl alcohol intermediate layer, and a cellulose triacetate outer layer. The invention also relates to a method for manufacturing such a lens. 1. A process for producing a lens , comprising:preheating a laminated film, comprising first and second outer layers with the first outer layer having first and second opposing surfaces and comprising cellulose triacetate (CTA), an intermediate layer having first and second opposing surfaces and comprising polyvinyl alcohol (PVA), wherein the first surface of the intermediate layer is disposed over the second surface of the first outer layer and the second outer layer has first and second opposing surfaces and is comprised of polyamide, wherein the first surface of the second outer layer is disposed over the second surface of the intermediate layer, and wherein preheating the laminated film comprises preheating the first outer layer to a first temperature and preheating the second outer layer to a second, different temperature;thermoforming the preheated laminated film, wherein the first outer layer is heated at a third temperature and the second outer later is heated at a fourth, difference temperature;disposing the thermoformed film in a lens-shaped mold having at least first and second opposing surfaces, wherein the first surface of the first outer layer of the laminated film is adapted to couple to the first surface of the lens-shaped mold;injecting polyamide into the lens-shaped mold such that the second outer layer couples with the injected polyamide to form a mechanical support layer of the lens; anddecoupling the lens from the lens-shaped mold.2. The process as claimed in claim 1 , wherein preheating the laminated film further comprises:drying the laminated film.3. The process as claimed in claim 1 , wherein thermoforming the preheated laminated film comprises:thermoforming the preheated laminated film in a ...

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Номер записи: 72
05-02-2015 дата публикации

OPTICAL FIBER CONNECTOR AND MOLD AND METHOD FOR MOLDING SAME

Номер: US20150036979A1
Автор: HUANG PO-WEI
Принадлежит:

Optical fiber connector includes a main body and at least one protrusion. The main body includes a first surface, a second surface, and at least one receiving hole defined therein. Each protrusion is positioned on the first surface and surrounds an opening of the corresponding receiving hole. 1. An optical fiber connector comprising: a first surface;', 'a second surface opposite to the first surface;', 'an upper surface having a recess defined therein and the recess passing through the second surface;', 'a lower surface opposite to the upper surface, wherein at least one receiving hole being formed in the first surface and being configured for fluid communication with the recess; and, 'a main body comprisingat least one protrusion corresponding to the receiving hole, each of the at least one protrusion being positioned on the first surface and surrounding an opening of the corresponding receiving hole in the first surface.2. The optical fiber connector of claim 1 , wherein the protrusion axially defines a hole claim 1 , the hole fluidly communicates with the corresponding receiving hole claim 1 , a diameter of the hole is substantially the same a diameter of the receiving hole.3. The optical fiber connector of claim 1 , wherein the protrusion is a substantially circular truncated cone.4. The optical fiber connector of claim 1 , wherein the recess includes a bottom surface substantially parallel to the upper surface and a connecting surface substantially perpendicularly connected between the bottom surface and the upper surface claim 1 , the receiving hole passing through the first surface and the connecting surface.5. The optical fiber connector of claim 4 , wherein the main body defines at least one receiving groove in the bottom surface corresponding to the receiving hole claim 4 , the receiving groove passes through the second surface and extends to the connecting surface claim 4 , each receiving groove is aligned to the corresponding receiving hole.6. The ...

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Номер записи: 73
05-02-2015 дата публикации

Mold assembly for fomring optical lens for led

Номер: US20150037454A1
Автор: Po-Chou Chen
Принадлежит: Hon Hai Precision Industry Co Ltd

A mold assembly for manufacturing an optical lens for LED, includes an upper die, an upper die core received in the upper die, a bottom die and a bottom die core received in the bottom die. The upper die core includes a bottom surface; the bottom surface has a profile corresponding to a profile of a top portion of the optical lens. The bottom die includes a base and a replaceable die core removably received in the base. The replaceable die core includes an upper surface, and the replaceable die core defines a chamber depressed downwardly at a center of the upper surface. A bottom portion of the optical lens is formed by in the chamber. The replaceable die core defines a plurality of fixing holes recessed downwardly from the chamber for forming positioning feet of the optical lens.

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Номер записи: 74
30-01-2020 дата публикации

LENS FOR EYEWEAR AND OTHER HEADWORN SUPPORTS HAVING IMPROVED OPTICS

Номер: US20200033632A1
Автор: Belbey Jason, McCabe Brock Scott, Robinson David
Принадлежит:

A lens is provided that has an improved optical configuration in order to provide enhanced off-axis optical performance by tending to reduce, eliminate, or minimize first order optical distortion. Embodiments may be used in non-corrective or corrective unitary or dual lens eyewear, for example in combination with a frame to support the lens in a path of a straight ahead line of sight forming a center axis of an eye of a typical wearer. The lens may comprise a lens body. The lens body may comprise a surface having a spheric, toric, cylindrical or freeform geometry and another surface having a freeform geometry. A lens thickness is defined between the surfaces. A prismatic power of the lens is improved, particularly for off-axis viewing angles. 1. A lens for use in non-corrective eyewear or headgear in combination with a frame to support the lens in a path of a straight ahead line of sight forming a center axis of one eye of a typical wearer , the lens comprising: a front surface having a spheric, toric, cylindrical, or freeform geometry; and', a lens thickness is defined between the front surface and the rear surface,', "a viewing axis extends from the one eye and the center axis at an angle from the center axis away from the typical wearer's nose measured along a horizontal meridian of the rear surface,", 'each point along the horizontal meridian of the rear surface is associated with an angle of the viewing axis where the viewing axis intersects the each point along the horizontal meridian of the rear surface, and', 'a prismatic power of the lens does not exceed approximately 0.23 diopter throughout points along the horizontal meridian of the rear surface associated with angles of the viewing axis approximately 30 degrees or less., 'a rear surface having a freeform geometry, wherein'}], 'a lens body comprising23.-. (canceled)4. The lens of claim 1 , wherein the spheric claim 1 , tonic claim 1 , or cylindrical geometry has a horizontal base curve of approximately ...

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Номер записи: 75
09-02-2017 дата публикации

Pipe-Conforming Structure

Номер: US20170038546A1
Автор: Adam J. Rinehart, Antoine MINOIS, James E. Elliott, Michael S. Weir, Mohan G. Kulkarni, Wentao Cheng
Принадлежит: Individual

The present techniques are directed to systems and methods for forming a pipe-conforming structure. The pipe-conforming structure includes a polymer material and one or more optic fibers embedded within the polymer material. The polymer material is formed into a structure that is conformed to the shape of a pipe. A method includes forming a polymer material into a structure including an edge region and a center region. The center region has a greater thickness than the edge region. The method includes inserting one or more optic fibers into the polymer material.

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Номер записи: 76
09-02-2017 дата публикации

SYSTEMS AND METHODS FOR CUSTOMIZATION OF OBJECTS IN ADDITIVE MANUFACTURING

Номер: US20170038767A1
Автор: CLUCKERS Tom, MAES Jan
Принадлежит: MATERIALISE N.V.

Embodiments of this application relate to systems and methods which allow for 3-D printed objects, such as eyeglasses and wristwatches, for example, to be customized by users according to modification specifications that are defined and constrained by manufacturers. These modification specifications may be constrained by the manufacturers based on factors relating to the printability of a modified design. 1. A computer implemented method of creating customized wearable products using additive manufacturing , the method comprising:receiving a 3-D printable file storing a baseline 3-D design for the wearable product, and customization data for the wearable product accounting for printability constraints of the baseline 3-D design;receiving a 3-D scan image associated with an anatomical feature of a user of the wearable product;receiving customization information indicative of a customization of the baseline 3-D design based on the 3-D scan image; andmodifying the baseline 3-D design according to the received customization information and the customization data;obtaining a modified 3-D printable file; andmanufacturing the customized wearable product according to the modified 3-D printable file using an additive manufacturing service.2. The method of claim 1 , further comprising generating the customization data for the wearable product claim 1 , wherein generating the customization data comprises determining the printability of a proposed modification of the baseline 3-D design.34.-. (canceled)5. The method of claim 28 , wherein the generated web page information comprises a plurality of visual elements used to modify the baseline 3-D design.6. The method of claim 5 , wherein the plurality of visual elements comprise slider elements claim 5 , and wherein movement of the slider elements is indicative of a change to the physical dimensions of the baseline 3-D design.7. The method of claim 1 , wherein the customization data for the wearable product comprises permitted ...

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Номер записи: 77
09-02-2017 дата публикации

Optical semiconductor element mounting substrate and optical semiconductor device using thermosetting resin composition for light reflection

Номер: US20170040513A1
Автор: Akira Nagai, Hayato Kotani, Kanako Yuasa, Mitsuyoshi Hamada, Naoyuki Urasaki
Принадлежит: Hitachi Chemical Co Ltd

Disclosed is an optical semiconductor device having an optical semiconductor mounting element including a recess. On an inner side face of the recess is a thermosetting resin composition for light reflection, which, after curing, can realize high reflectance in a range of visible light to near ultraviolet light, has excellent heat deterioration resistance and tablet moldability, and is less likely to cause burrs during transfer molding, and a process for producing the resin composition, and an optical semiconductor element mounting substrate and an optical semiconductor device using the resin composition. The heat curable resin composition for light reflection comprises a heat curable component and a white pigment and is characterized in that the length of burrs caused upon transfer molding under conditions of molding temperature of 100° C. to 200° C., molding pressure of not more than 20 MPa, and molding time of 60 to 120 sec is not more than 5 mmabd the light reflectance after heat curing at a wavelength of 350 nm to 800 nm is not less than 80%.

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Номер записи: 78
18-02-2021 дата публикации

Method and system for molding of thermoplastic optical polymers

Номер: US20210046717A1
Автор: Jagdish Jethmalani, Monica Bhatia, Sanjiban Chakraborty
Принадлежит: Novol Inc

Provided herein are methods of molding thermoplastic polymers into optical elements. The optical elements in the form of cylindrical discs, semi-finished lens blanks or finished lenses are compression molded at high temperature typically above thermoplastic polymers softening temperature and under high pressure. The semi-finished lens blanks and finished lenses are molded using front and back glass molds inside a mold assembly which reshapes the cylindrical discs that are either previously molded or cut out from thick slab. Also provided are methods for producing single vision and progressive addition lens prescriptions.

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Номер записи: 79
18-02-2016 дата публикации

PRODUCTION OF 3D FREE-FORM WAVEGUIDE STRUCTURES

Номер: US20160046070A1
Автор: Köber Sebastian, Koos Christian, Lindenmann Nicole, Mappes Timo
Принадлежит: KARLSRUHER INSTITUT FUR TECHNOLOGIE

The present invention provides a process for producing an optical waveguide () more particularly for integrated photonic systems. This process comprises provision of polymerizable material; local polymerization of the polymerizable material to produce a multiplicity of polymerized structural elements (); removal of the unpolymerized regions of the polymerizable material; and heating of the polymerized material more particularly above the glass transition temperature thereof in order to fuse the multiplicity of polymerized structural elements () together to form the optical waveguide (). 1. Method for producing an optical waveguide , comprising:providing a polymerizable material;locally polymerizing the polymerizable material to produce a multiplicity of polymerized structural elements;removing the non-polymerized areas of the polymerizable material; andheating the polymerized material in order to fuse together the multiplicity of polymerized structural elements to form the optical waveguide.2. The method according to claim 1 , wherein the locally polymerizing is optically induced by multiple photon absorption.3. The method according to claim 2 , wherein the locally polymerizing comprises radiating with focused claim 2 , particularly pulsed claim 2 , laser light.4. The method according to claim 3 , wherein the locally polymerizing takes place along a multiplicity of processing lines running parallel to each other in a regular grid within an area of the optical waveguide to be produced.5. The method according to claim 4 , wherein adjacent processing lines have a distance between each other in the range of about 50 nm to about 3 μm claim 4 , preferably in the range of about 100 nm to about 2 μm claim 4 , still more preferably in the range of about 200 nm to about 1 μm claim 4 , most preferably in the range of about 200 nm to about 500 nm.6. The method according to claim 5 , wherein the polymerized structural elements form line elements which have a cross section ...

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Номер записи: 80
06-02-2020 дата публикации

ELECTROCHROMIC DEVICES ON NON-RECTANGULAR SHAPES

Номер: US20200041860A1
Автор: Bhatnagar Yashraj, Dixit Abhishek Anant, Jack Gordon, Martin Todd, Pradhan Anshu A.
Принадлежит:

Bus bar configurations and fabrication methods for non-rectangular shaped (e.g., triangular, trapezoidal, circular, pentagonal, hexagonal, arched, etc.) optical devices. 1. An optically switchable window comprising:a non-rectangular optically switchable device comprising a first side, a second side, opposing the first side, and a third side adjacent the second side;a first bus bar spanning a first portion of and along the first side of the non-rectangular optically switchable device; anda second bus bar spanning a second portion of and along the second side of the non-rectangular optically switchable device, and spanning a third portion of and along the third side;wherein the first bus bar and the second bus bar are configured to apply voltage to the non-rectangular optically switchable device.2. (canceled)3. The optically switchable window of claim 1 , wherein the second portion and the third portion of the second bus bar are located along a right angle of the non-rectangular optically switchable device.4. The optically switchable window of claim 3 , wherein the second portion has a length equal to about 0.60 times the length of the second side claim 3 , and wherein the third portion has a length equal to about 0.60 times the length of the third side.5. The optically switchable window of claim 3 ,wherein the second portion has a length that is between 0.40 and 0.80 times the length of the second side, andwherein the third portion has a length that is between 0.40 and 0.80 times the length of the third side.6. The optically switchable window of claim 3 ,wherein the second portion has a length that is between 0.50 and 0.70 times the length of the second side, andwherein the third portion has a length that is between 0.50 and 0.70 times the length of the third side.7. The optically switchable window of claim 3 ,wherein the second portion has a length of about the length of the second side, andwherein the third portion has a length that is between 0.03 and 0.40 times ...

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Номер записи: 81
19-02-2015 дата публикации

Methods for Forming Patterns on Curved Surfaces

Номер: US20150048048A1
Автор: Slafer W. Dennis
Принадлежит:

Methods are disclosed by which two-dimensional and three-dimensional pattern layers may be formed on non-planar surfaces, including optical elements such as lenses with one or more cylindrical, spherical or aspheric surfaces. Patterns with features in the micro- and/or nano-size regime comprised of organic, inorganic or metallic materials may be formed by the methods described herein. 1. A method for fabricating a pattern on a compound curved surface , said method comprising:a. forming a relief pattern on a stretchable surface to form a replication mold,b. coating a layer of curable polymer material on said stretchable surface,c. causing said coated stretchable surface to come in conformal compliant contact with a curved substrated. exposing said curable polymer material to radiation to cause solidification of said polymer material,e. withdrawing said stretchable mold from contact with said substrate so as to leave the solidified polymer having a pattern complementary to that of the relief pattern of the stretchable replication mold as a layer on the surface of said substrate.2. The method of in which the substrate is a lens3. The method of in which the substrate is concave or convex4. The method of in which the substrate is comprised of two or more curved surfaces5. The method of in which the curable polymer material is applied to the substrate claim 1 , the replication mold claim 1 , or both.6. The method of in which the polymer material relief pattern is used as a resist mask.7. The method of in which the resist mask is used to form a pattern in an underlying material layer by etching of said underlying material.8. The method of in which a material layer is deposited over said pattern-forming mask followed by removal of said mask and excess deposited said material to result in the formation of a desired pattern in said material.98. The methods of & in which the material layer is comprised of one or more metals claims 7 , alloys claims 7 , dielectrics or ...

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Номер записи: 82
19-02-2015 дата публикации

TOOLS FOR MAKING RETROREFLECTIVE ARTICLES

Номер: US20150048067A1
Автор: Markowicz Przemyslaw P.
Принадлежит:

A tool for making retroreflective articles comprises (a) a substrate comprising a patterned surface comprising an array of microstructured retroreflective elements and (b) a welding seam through at least a portion of the array. An optically degraded area adjacent the welding seam on the patterned surface has a width of about 400 μm or less. 1. A tool for making retroreflective articles comprising:(a) a substrate comprising a patterned surface comprising an array of microstructured retroreflective elements; and(b) a welding seam through at least a portion of the array;wherein an optically degraded area adjacent the welding seam on the patterned surface has a width of about 400 μm or less.2. The tool of wherein the patterned surface comprises cube corner elements.3. The tool of wherein the width of the optically degraded area is between about 50 μm and about 400 μm.4. The tool of wherein the width of the optically degraded area is about 300 μm or less.5. The tool of wherein the width of the optically degraded area is about 200 μm or less.6. The tool of wherein the width of the optically degraded area is about 100 μm or less.7. The tool of wherein tensile strength of the seam is about 50 kpsi or more.8. The tool of wherein the tool is a cylinder claim 1 , belt or sleeve.9. The tool of wherein the substrate comprises two tooling elements connected by the welding seam.10. A retroreflective article replicated from the tool of or from a replica thereof.11. Retroreflective sheeting comprising a patterned surface comprising a three dimensional array of microstructured retroreflective elements and a welding seam through at least a portion of the array; wherein an optically degraded area adjacent the welding seam on the patterned surface has a width of about 400 μm or less.12. The retroreflective sheeting of wherein the patterned surface comprises cube corner elements.13. The retroreflective sheeting of wherein the width of the optically degraded area is between about 50 μm ...

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Номер записи: 83
16-02-2017 дата публикации

Method for producing cured product of episulfide-based resin

Номер: US20170044323A1
Автор: Eiji Koshiishi, Hiroshi Horikoshi, Kikuo Furukawa, Kousuke Namiki, Sawako Fuse
Принадлежит: Mitsubishi Gas Chemical Co Inc

The present invention can provide a method for producing a cured product of an episulfide-based resin, the method having: (A) a step for obtaining a composition for a resin by mixing compound (a), compound (b) and a polymerization catalyst; (B) a step for pouring the composition for a resin into a mold; and (C) a step in which, by increasing the temperature of a heating medium, the composition for a resin is polymerized in the heating medium that contains a liquid having a thermal conductivity of 0.2 W/m·K or higher, or in a shower of the heating medium. The maximum temperature of the heating medium in step (C) is 55 to 110° C. (a) A compound which has two episulfide groups per molecule and which is represented by formula (1): wherein m represents an integer from 0 to 4 and n represents an integer from 0 to 2 (b) A compound having one or more thiol groups per molecule.

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Номер записи: 84
19-02-2015 дата публикации

OPTICAL FIBER SENSING WITH ENHANCED BACKSCATTERING

Номер: US20150048243A1
Автор: Childers Brooks A., Duncan Roger Glen
Принадлежит: BAKER HUGHES INCORPORATED

An apparatus for estimating at least one parameter in a downhole environment includes: an optical fiber configured to be disposed in a borehole, the optical fiber having a property that causes intrinsic backscattering of signals transmitted therein. The property varies along a length of the optical fiber to generate a variable intensity of the backscattering, the intensity of backscattering varying along the optical fiber as a function of distance from an end of the optical fiber. The apparatus also includes a light source configured to send an optical signal into the optical fiber; and a detector configured to receive a return signal including backscattered signals. 1. An apparatus for estimating at least one parameter in a downhole environment comprising:an optical fiber configured to be disposed in a borehole, the optical fiber having a property that causes intrinsic backscattering of signals transmitted therein, the property varying along a length of the optical fiber to generate a variable intensity of the backscattering, the intensity of backscattering varying along the optical fiber as a function of distance from an end of the optical fiber;a light source configured to send an optical signal into the optical fiber; anda detector configured to receive a return signal including backscattered signals.2. The apparatus of claim 1 , wherein the variation of the intensity of backscattering is at least partially random.3. The apparatus of claim 1 , wherein the intrinsic backscattering is caused by Rayleigh scattering.4. The apparatus of claim 1 , wherein the intensity of the backscattering increases as a function of distance from an end of the fiber into which optical signals are launched.5. The apparatus of claim 1 , wherein the property is a concentration of a dopant in at least one of a core and a cladding of the optical fiber claim 1 , the concentration varying as a function of the distance.6. The apparatus of claim 1 , wherein the property is an index of ...

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Номер записи: 85
19-02-2015 дата публикации

AUTOMATED PRODUCTION OF CONCENTRATOR LENS PANELS

Номер: US20150048531A1
Автор: Annen Hans Philipp, Leutz Ralf
Принадлежит:

The present invention lies in the field of the industrial manufacturing of cast parts and relates to an apparatus and method for the automated production of parts of this type having very fine surface structures, particularly concentrator lens panels, which contain at least one, preferably annular, stepped region as per Fresnel lenses. Handling during the production of the lens panels is difficult, inter alia, because after the curing operation, on account of relatively large adhesion forces or cohesion forces, the mould is removable in a precisely reproducible manner from the product or from the system only with difficulty. It is the object of the present invention to provide a method and an apparatus for the automated production of concentrator lens panels. This is achieved in that a die containing an upper plate () and a lower plate () initially holds the mould () in a precisely defined manner on the upper plate, and the deformable material mass () lying on a glass or plastics plate () rests in a precisely positioned manner on the lower plate, and then the upper and lower plates are moved together leaving an intermediate space which is evacuated, and the entire sandwich packet is then joined together, kept in a pressed manner and heated until the material is firm. Specially designed securing means () then ensure that the sandwich packet can be undone in a reproducible manner and the mould () can be separated from the product () in a defined manner. 19. A method for the production of a panel representing a workplace , preferably a concentrator lens panel () , having at least one stepped region , preferably an annular stepped region , in accordance with Fresnel lenses ,characterized by the following steps:{'b': 1', '2', '5, 'a) loading a lower plate () of a production tool, preferably a glass plate () or silicone plate lying on the lower plate, with deformable material, preferably lens material, wherein unintended flowing off of the material is prevented by ...

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Номер записи: 86
19-02-2015 дата публикации

APPARATUS AND METHOD FOR FORMING SERRATION PATTERN

Номер: US20150048532A1
Автор: JUNG JiHyun, KIM Minkoo, KIM Taehong, Yoon Jongmoon
Принадлежит:

An apparatus for forming a serration pattern on a light guide plate having a top surface emitting a light, a bottom surface opposite to the top surface, and at least one side surface, arranged between the top surface and the bottom surface, as an incident surface. The apparatus includes a base plate supporting the bottom surface of the light guide plate; a fixing plate facing the top surface of the light guide plate with a predetermined interval; and a serration core transferring the serration pattern onto the at least one side surface of the light guide plate by a thermal pressing process causing a thickness deformation of the light guide plate. Further, the fixing plate induces a changed thickness of the light guide plate to be uniform by limiting a thickness change amount of the light guide plate to the predetermined interval. 1. An apparatus for forming a serration pattern on a light guide plate having a top surface emitting a light , a bottom surface opposite to the top surface , and at least one side surface , arranged between the top surface and the bottom surface , as a incident surface , the apparatus comprising:a base plate supporting the bottom surface of the light guide plate;a fixing plate facing the top surface of the light guide plate with a predetermined interval; anda serration core transferring the serration pattern onto the at least one side surface of the light guide plate by a thermal pressing process causing a thickness deformation of the light guide plate,wherein the fixing plate induces a changed thickness of the light guide plate to be uniform by limiting a thickness change amount of the light guide plate to the predetermined interval.2. The apparatus of claim 1 , wherein a depth of the serration pattern is greater at a center portion of the side surface than an upper portion and a lower portion of the side surface.3. The apparatus of claim 2 , wherein the serration core has a pattern surface on which an original pattern for transferring the ...

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Номер записи: 87
16-02-2017 дата публикации

MULTILAYERED ARTICLES WITH LOW OPTICAL RETARDATION

Номер: US20170045655A1
Автор: Bastawros Adel, Feng Wei, Wang Zhi, Zhou Jian, Zhou Yuan
Принадлежит:

A coextruded multilayered thermoplastic article including: a first layer with a first surface texture, wherein the first layer comprises a first transparent thermoplastic polymer having a first stress optical coefficient (C) measured at 20° C. above the glass transition temperature of the first polymer; a second layer located comprising a second transparent thermoplastic polymer having a second stress optical coefficient (C) measured at 20° C. above the glass transition temperature of the second matrix;wherein a relation between the first stress optical coefficient and the second stress optical coefficient is C>4(C) (Formula A) wherein the thickness of the first layer measured from the highest peaks of the first surface texture to the second side of the first layer is greater than 1.5 times Rz of the first surface texture but less than or equal to 75% of the total thickness of the article. 1. A coextruded multilayered thermoplastic article , comprising:{'sub': 'm1', 'a first layer with a first side and a second side and with a first surface texture on the first side, wherein the first layer comprises a first transparent thermoplastic polymer having a first stress optical coefficient (C) measured at 20° C. above the glass transition temperature of the first polymer;'}{'sub': 'm2', 'a second layer located adjacent the second side and comprising a second transparent thermoplastic polymer having a second stress optical coefficient (C) measured at 20° C. above the glass transition temperature of the second matrix;'} {'br': None, 'i': C', 'C, 'sub': m2', 'm1, '>4() \u2003\u2003(Formula A)'}, 'wherein a relation between the first stress optical coefficient and the second stress optical coefficient is Formula (A)'}wherein the thickness of the first layer measured from the highest peaks of the first surface texture to the second side of the first layer is greater than 1.5 times Rz of the first surface texture but less than or equal to 75% of the total thickness of the ...

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Номер записи: 88
16-02-2017 дата публикации

OPTICAL ELEMENT, METHOD FOR MANUFACTURING THE SAME, AND ELECTRONIC APPARATUS

Номер: US20170045658A1
Автор: Kumai Yoshitomo
Принадлежит:

An optical element includes a substrate, a plurality of reflective reflection layers on the substrate, and an absorbing layer over the reflection layers. The reflection layers are arranged in a striped manner in plan view. The absorbing layer absorbs polarized light oscillating in the direction in which the reflection layers extend. The optical element also includes an oxide film on the substrate between the reflection layers and on the absorbing layer. The oxide film is formed by oxidizing the absorbing layer. 1. An optical element comprising:a substrate;a plurality of reflection layers on one side of the substrate, the reflection layers being arranged in a striped manner in plan view;an absorbing layer disposed on the side of the reflection layers opposite the substrate; andan oxide film covering the absorbing layer and portions between any two adjacent reflection layers, the oxide film being made of an oxide of a material contained in the absorbing layer.2. The optical element according to claim 1 , wherein the substrate has grooves therein between any two adjacent reflection layers claim 1 , and the oxide film in part lies in the grooves.3. The optical element according to claim 1 , further comprising a dielectric layer between each of the reflection layers and the absorbing layer.4. The optical element according to claim 1 , wherein the reflection layers contain at least one selected from the group consisting of aluminum claim 1 , silver claim 1 , copper claim 1 , chromium claim 1 , titanium claim 1 , nickel claim 1 , tungsten claim 1 , and iron.5. The optical element according to claim 1 , wherein the absorbing layer contains at least one selected from the group consisting of silicon claim 1 , germanium claim 1 , and chromium.6. The optical element according to claim 3 , wherein the dielectric layer is made of silicon oxide.7. A method for manufacturing an optical element claim 3 , the method comprising:forming a plurality of reflection layers on one side of a ...

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Номер записи: 89
19-02-2015 дата публикации

LENS FORMING APPARATUS

Номер: US20150050378A1
Автор: Fujiwara Takayuki, Watanabe Seiichi
Принадлежит:

The invention provides a lens forming apparatus that can suppress generation of burrs even if gaps between outer walls of an upper die and a lower die and an inner wall of a trunk die is made wide. A lens forming apparatus according to the present invention includes a trunk die having a through-hole therein; first and second dies and that are fitted into the through-hole from both ends thereof, respectively, and have pressing surfaces and for sandwiching and pressing a forming material and induction-heating coils and that heat the first and second dies and to a temperature equal to or higher than a glass transition point, in a state where the trunk die is not heated and the temperature thereof is set to a temperature equal to or lower than the glass transition point. 1. A lens forming apparatus comprising:a trunk die having a through-hole;first and second dies that are fitted into the through-hole from both ends thereof, respectively, and has pressing surfaces capable of sandwiching and pressing a forming material formed on opposed surfaces thereof; anda heating control unit that is controlled to heat the first and second dies to a temperature equal to or higher than a glass transition point, in a state where the trunk die is not heated and the temperature thereof is set to a temperature equal to or lower than the glass transition point.2. The lens forming apparatus according to claim 1 ,wherein the heating control unit is capable of controlling induction heating.3. The lens forming apparatus according to claim 2 ,wherein the first and second dies are made of a material that is induction-heated, and the trunk die is a dielectric body made of a material that is not induction-heated.4. The lens forming apparatus according to further comprising:a member whose thermal conductivity is lower than those of the first die, the second die, and the trunk die at a position between outer walls of the first and second dies and an inner wall of the trunk die.5. The lens forming ...

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Номер записи: 90
03-03-2022 дата публикации

METHODS OF FORMING LENS FOR CORRECTION OF HIGH-ORDER ABERRATIONS USING ADDITIVE FABRICATION PROCESS

Номер: US20220063182A1
Автор: BROWN Nicolas Scott, KIM Joung Yoon
Принадлежит:

A method for fabricating a contact lens by an additive fabrication process includes joining a first portion of the contact lens with a second portion of the contact lens and joining a third portion of the contact lens with at least one of the first portion and the second portion of the contact lens. A center of a correction region of the contact lens may be offset from a center of the contact lens. The first portion and the second portion may include a first material and a second material at different ratios. The first portion and the second portion of the contact lens may include a first material and a second material having different sizes.

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Номер записи: 91
25-02-2016 дата публикации

METHOD FOR PRODUCING DECORATIVE LENS

Номер: US20160052201A1
Автор: Hashimoto Toshikazu
Принадлежит: HOYA CORPORATION

A method for producing a decorative lens capable of effectively suppressing deformation of the lens in laminating a film material to the lens even when lenses vary widely in shape, in which support jigs or the like for suppressing deformation of lenses need not be provided for respective lenses having different shapes. A first compartment and a second compartment are separated hermetically by a film material, the second compartment and a third compartment are hermetically separated by an elastic film, the pressure inside the first compartment is made higher than the pressure inside the second compartment, and in laminating the film material is to a lens disposed inside the second compartment, the pressure inside the third compartment is made higher than the pressure inside the second compartment, so that the lens is supported by the elastic film. 1. A method for producing a decorative lens laminating a film material to a lens , the film material being a laminated material , the method comprising:hermetically separating a first compartment and a second compartment provided adjacent to each other from each other by the film material;hermetically separating the second compartment and a third compartment provided adjacent to each other from each other by an elastic film;setting a pressure in the first compartment higher than a pressure in the second compartment, and in laminating the film material to the lens disposed in the second compartment, setting a pressure in the third compartment higher than the pressure in the second compartment to support the lens by the elastic film.2. The method for producing a decorative lens according to claim 1 , wherein in laminating the film material to the lens claim 1 , the pressure in the first compartment and the pressure in the third compartment are set equal to each other.3. The method for producing a decorative lens according to claim 1 , wherein the first compartment and the third compartment communicate with each other.4. The ...

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Номер записи: 92
25-02-2021 дата публикации

MOLD FOR MOLDING WAFER LENS

Номер: US20210053305A1
Автор: Holme Niels Christian Roemer, Nielsen Peter Krohne, Pan Zhengmin Banjamin, Zhu Bingke
Принадлежит:

Provided is a mold for molding a wafer lens, including an upper mold and a lower mold. The upper mold includes a first molding surface. The first molding surface includes first molding portions. The first molding portion includes a first recessed portion formed by recessing from the first molding surface. The lower mold matches the upper mold. The lower mold includes a second molding surface right facing the first molding surface. The second molding surface includes second molding portions. The second molding portion includes a first protrusion portion protruding from the second molding surface towards the first molding surface. The first molding portions and the second molding portions are disposed in one-to-one correspondence. The first molding portion further includes a second recessed portion formed by recessing from the first molding surface towards a direction facing away from the lower mold. The second recessed portion surrounds the first recessed portion. 1. A mold for molding a wafer lens , comprising:an upper mold comprising a first molding surface, the first molding surface comprising a plurality of first molding portions, and each of the plurality of first molding portions comprising a first recessed portion formed by recessing from the first molding face; anda lower mold matching the upper mold, the lower mold comprising a second molding surface right facing the first molding surface, the second molding surface comprising a plurality of second molding portions, and each of the plurality of second molding portions comprising a first protrusion portion protruding from the second molding surface towards the first molding surface,wherein the plurality of first molding portions and the plurality of second molding portions are disposed in one-to-one correspondence,wherein each of the plurality of first molding portions further comprises a second recessed portion formed by recessing from the first molding surface towards a direction facing away from the lower ...

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Номер записи: 93
23-02-2017 дата публикации

METHOD FOR MOLDING AN OPHTHALMIC LENS AND DEVICE FOR APPLYING A COATING TO THE SURFACE OF AN OPHTHALMIC LENS MOLD

Номер: US20170050344A1
Автор: Heidrich Halina, Heinrich Axel, Straube Karsten
Принадлежит:

There are described a method for applying a coating to a surface of an ophthalmic lens mold. The mold includes male and female () mold halves, with each of the mold halves being provided with a lens forming surface (). The method includes 113.-. (canceled)14. A device for applying a coating to a surface of an ophthalmic lens mold , said lens mold comprising male and female mold halves , each of said male and female mold halves being provided with a lens forming surface , with a mold cavity being formed between said lens forming surfaces of said male and female mold halves when the mold is closed , said device comprising at least one coating head having a coating face adapted to be contacted with said portion of said at least one lens forming surface of said male and female mold halves , said coating head being provided with feed and discharge ports adapted to be connected with feed and discharge lines in order to allow for a continuous flow of a temporary coating substance to and from said coating face at least during contact of said coating face with said portion of said lens forming surface of said at least one of said male and female mold halves.15. The device according to claim 14 , wherein said coating face comprises a curved outer surface generally matching a concave or convex curvature of said lens forming surface of said male or female mold half claim 14 , respectively.16. The device according to claim 14 , wherein said coating face comprises a mesh which is made of a material selected from the group consisting of polyethylene claim 14 , polypropylene claim 14 , polytetrafluoroethylene claim 14 , polyamide claim 14 , polyester claim 14 , silk claim 14 , steel claim 14 , and combinations of these materials.17. The device according to claim 15 , wherein said coating face comprises a mesh which is made of a material selected from the group consisting of polyethylene claim 15 , polypropylene claim 15 , polytetrafluoroethylene claim 15 , polyamide claim 15 , ...

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Номер записи: 94
23-02-2017 дата публикации

METHOD OF FABRICATING AN ARRAY OF OPTICAL LENS ELEMENTS

Номер: US20170050347A1
Автор: Brouwer Willem Matthijs, Coninx Robertus Johannes Gerardus, Wolterink Edwin Maria
Принадлежит:

The present invention relates to a method of fabricating an array of optical lens elements, comprising: 1. A method of fabricating an array of optical lens elements , comprising:providing a first mold having a plurality of recesses;applying a first polymer liquid in said plurality of recesses;providing a first contact shaping substrate;contacting said first contact shaping substrate with said first polymer liquid in said plurality of recesses, wherein said contact between said first contact shaping substrate and said first polymer liquid results in a deformation of the contour configuration of said first polymer liquid facing away from said plurality of recesses; andcuring said first polymer liquid to form an array of optical lens elements, wherein said first contact shaping substrate is provided with a flow stop pattern acting as a flow stop for said first polymer liquid upon contacting said first contact shaping substrate with said first polymer liquid.2. A method of fabricating an array of optical lens elements according to claim 1 , further comprising claim 1 , after curing said first polymer liquid claim 1 ,a step of removing said first contact shaping substrate from said array of optical lens elements;a step of providing a second polymer liquid onto said an array of optical lens elements;curing said second polymer liquid.3. A method of fabricating an array of optical lens elements according to claim 2 , further comprising claim 2 , after providing said second polymer liquid onto said array of optical lens elements:a step of providing a second contact shaping substrate;a step of contacting said second contact shaping substrate with said second polymer liquid, wherein said contact between said second contact shaping substrate and said second polymer liquid results in a complete coverage of the contour configuration of said array of optical lens elements facing away from said first mold having a plurality of recesses;curing said second polymer liquid.4. A method ...

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Номер записи: 95
22-02-2018 дата публикации

MULTILAYER OPTICAL ADHESIVES AND METHODS OF MAKING SAME

Номер: US20180050473A1
Автор: BENSON, Hennen Daniel W., Hoffend, JR. Olester, JR. Thomas R., Radcliffe Marc D., Sherman Audrey A., Sitter Brett J., Steiner Michael L., Stradinger John J.
Принадлежит:

A multilayer optical adhesive including a first viscoelastic or elastomeric adhesive layer and a second viscoelastic or elastomeric adhesive layer. A crosslinked or soluble resin layer may be disposed between the first viscoelastic or elastomeric adhesive layer and the second viscoelastic or elastomeric adhesive layer or the first viscoelastic or elastomeric adhesive layer may be immediately adjacent to the second viscoelastic or elastomeric adhesive layer. An interface between immediately adjacent layers is structured and there is a difference in refractive indices across the interface. 1. An optical adhesive comprising:{'sub': '1', 'a first viscoelastic or elastomeric adhesive layer having a first major surface, an unstructured second major surface, and having a first refractive index n;'}{'sub': '2', 'a second viscoelastic or elastomeric adhesive layer immediately adjacent the first major surface of the first viscoelastic or elastomeric adhesive layer, the second viscoelastic or elastomeric adhesive having a second refractive index n;'}{'sub': 1', '2, 'wherein a first interface between the first viscoelastic or elastomeric adhesive layer and the second viscoelastic or elastomeric adhesive layer includes a substantially continuous grating having a peak to valley height h and a pitch and wherein h multiplied by |n−n| is in a range of about 150 nm to about 350 nm and the pitch is in a range of about 2 microns to about 50 microns.'}2. The optical adhesive of claim 1 , wherein the first viscoelastic or elastomeric adhesive layer is a first viscoelastic optically clear adhesive and the second viscoelastic or elastomeric adhesive layer is a second viscoelastic optically clear adhesive.3. The optical adhesive of claim 1 , further comprising a first release liner having a first release surface immediately adjacent the unstructured second major surface and a second release liner having a second release surface immediately adjacent the second viscoelastic or elastomeric ...

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Номер записи: 96
14-02-2019 дата публикации

RETROREFLECTIVE SHEETING INCLUDING CUBE CORNER ELEMENTS

Номер: US20190049635A1
Автор: Smith Kenneth L.
Принадлежит:

The present disclosure is directed to lamina(e) comprising cube corner elements, a tool comprising an assembly of laminae and replicas thereof. The disclosure further relates to retroreflective sheeting. 1. Retroreflective sheeting , comprising:a plurality of cube corner elements;wherein at least one of the cube corner elements has three dihedral angle errors having a magnitude between 1 arc minute and 60 arc minutes;wherein at least one of the cube corner elements forms a hexagonal shape when viewed in plan view; andwherein at least one of the cube corner elements forms a pentagonal shape when viewed in plan view;wherein the cube corner elements comprise preferred geometry cube corner elements,{'sup': '2', 'wherein the sheeting exhibits an average brightness at 0° and 90° orientation of at least 375 candelas/lux/mfor an entrance angle of −4° and an observation angle of 0.5°.'}2. The retroreflective sheeting of claim 1 , wherein two of the three dihedral angle errors on a cube corner element are different from each other.3. The retroreflective sheeting of claim 2 , wherein two of the three dihedral angle errors on a cube corner element are different in magnitude from each other.4. The retroreflective sheeting of claim 2 , wherein the dihedral angle errors are varied in a repeating pattern.5. The retroreflective sheeting of claim 1 , wherein three of the three dihedral angle errors on a cube corner element are different from each other.6. The retroreflective sheeting of claim 5 , wherein three of the three dihedral angle errors on a cube corner element are different in magnitude from each other.7. The retroreflective sheeting of claim 5 , wherein the dihedral angle errors are varied in a repeating pattern.8. The retroreflective sheeting of claim 1 , wherein more than two of the cube corner elements are in a row wherein at least one dihedral edge of the cube corner elements range from being nominally parallel to nonparallel by less than 1°.9. The retroreflective ...

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Номер записи: 97
13-02-2020 дата публикации

RETROREFLECTIVE SHEETING INCLUDING CUBE CORNER ELEMENTS

Номер: US20200049869A1
Автор: Smith Kenneth L.
Принадлежит:

The present disclosure is directed to lamina(e) comprising cube corner elements, a tool comprising an assembly of laminae and replicas thereof. The disclosure further relates to retroreflective sheeting. 1. Retroreflective sheeting , comprising:a plurality of cube corner elements;wherein at least one of the cube corner elements has three dihedral angle errors having a magnitude between 1 arc minute and 60 arc minutes;wherein at least one of the cube corner elements forms a hexagonal shape when viewed in plan view; andwherein at least one of the cube corner elements forms a pentagonal shape when viewed in plan view;wherein the cube corner elements comprise preferred geometry cube corner elements,{'sup': '2', 'wherein the sheeting exhibits an average brightness at 0° and 90° orientation of at least 375 candelas/lux/mfor an entrance angle of −4° and an observation angle of 0.5°; and'}{'sup': '2', 'wherein the sheeting exhibits an average brightness at 0° and 90° orientation of at least 625 candelas/lux/mfor an entrance angle of −4° and an observation angle of 0.2°.'}2. The retroreflective sheeting of claim 1 , wherein two of the three dihedral angle errors on a cube corner element are different from each other.3. The retroreflective sheeting of claim 2 , wherein two of the three dihedral angle errors on a cube corner element are different in magnitude from each other.4. The retroreflective sheeting of claim 2 , wherein the dihedral angle errors are varied in a repeating pattern.5. The retroreflective sheeting of claim 1 , wherein three of the three dihedral angle errors on a cube corner element are different from each other.6. The retroreflective sheeting of claim 5 , wherein three of the three dihedral angle errors on a cube corner element are different in magnitude from each other.7. The retroreflective sheeting of claim 5 , wherein the dihedral angle errors are varied in a repeating pattern.8. The retroreflective sheeting of claim 1 , wherein more than two of the ...

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Номер записи: 98
22-02-2018 дата публикации

OVERMOLDED FILTERS

Номер: US20180052266A1
Автор: Mathai Sagi Varghese, Rosenberg Paul Kessler, Tan Michael Renne Ty
Принадлежит: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

In the examples provided herein, an apparatus has an optically transparent block having a filter surface. The apparatus also has two or more filters, where each of the filters has thin films fabricated on an optically transparent substrate, and further wherein the thin films of the filters are coupled to the filter surface. Additionally, the apparatus has an optically transparent overmold material encasing the two or more filters, where the overmold material fills a volume between and above neighboring ones of the two or more filters. 1. An apparatus comprising:an optically transparent block having a filter surface;two or more filters, wherein each of the filters comprises thin films fabricated on an optically transparent substrate, and further wherein the thin films of the filters are coupled, directly or indirectly, to the filter surface; andan optically transparent overmold material encasing the two or more filters, wherein the overmold material fills a volume between and above neighboring ones of the two or more filters.2. The apparatus of claim 1 , wherein a refractive index of the overmold material is within a predetermined range of a refractive index of the substrates of the two or more filters.3. The apparatus of claim 1 , wherein the overmold material has a first surface and a second surface claim 1 , wherein the first surface contacts the filter surface of the block claim 1 , and the second surface is away from the filter surface claim 1 , wherein the second surface is molded to direct light entering or exiting the overmold material at a particular angle claim 1 , and further wherein the apparatus further comprises an anti-reflection coating on the second surface.4. The apparatus of claim 1 , further comprising alignment features coupled to the overmold material to position the two or more filters in a first direction perpendicular to the filter surface and in a second direction perpendicular to the first direction.5. The apparatus of claim 4 , wherein the ...

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Номер записи: 99
22-02-2018 дата публикации

SCREEN PROVIDED WITH RETROREFLECTIVE MICROSTRUCTURES

Номер: US20180052323A1
Автор: Martinez Christophe
Принадлежит: Commissariat A L'Energie Atomique Et Aux Energies Alternatives

A retroreflective screen including a first film having a surface including a plurality of microrecesses, each microrecess having a bottom substantially parallel to the mean plane of the screen and first and second lateral walls substantially orthogonal to each other and substantially orthogonal to the bottom, the first and second lateral walls and the bottom of the microrecess joining at a same point and forming a trihedron. 115-. (canceled)16. A retroreflective screen comprising a first film made of a transparent material , having a surface comprising a plurality of microprotrusions , each microprotrusion having a first surface substantially parallel to the mean plane of the screen , and second and third surfaces substantially orthogonal to each other and substantially orthogonal to the first surface , the first , second , and third surfaces of the microprotrusions joining at a same point and forming a trihedron.17. The retroreflective screen of claim 16 , wherein the first claim 16 , second claim 16 , and third surfaces of each microprotrusion are coated with a reflective metallization.18. The retroreflective screen of claim 16 , wherein said surface of the first film further comprises strips with oblique or curved sides claim 16 , each microprotrusion being placed against one of the strips.19. The retroreflective screen of claim 18 , wherein a plurality of microprotrusions are placed against a same strip.20. The retroreflective screen of claim 16 , wherein the screen surface coverage by the microprotrusions is lower than 50%.21. The retroreflective screen of claim 16 , wherein the surface of the first film comprises microprotrusions having different dimensions and/or orientations in different screen areas.22. The retroreflective screen of claim 16 , wherein the microprotrusions of the first film are distributed according to a random or semi-random layout across the screen surface.23. A method of manufacturing the retroreflective screen of claim 16 , comprising ...

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Номер записи: 100