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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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Форма поиска

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 2555. Отображено 100.
08-03-2012 дата публикации

Wide angle lens system and photographing apparatus

Номер: US20120056976A1
Автор: Yong-Jae Lee, Young-woo Park
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A wide angle lens system includes a first lens group having a negative refractive power and a second lens group having a positive refractive power arranged from an object side. The first lens group includes a first lens of a meniscus shape having a convex surface toward the object side, a second lens having a concave surface toward the object side, and a third lens having a convex surface toward the object side, and the second lens group includes a fourth lens having a convex surface toward the object side, a fifth lens having a concave surface toward the object side, and a sixth lens of a meniscus shape having a concave surface toward the object side. A photographing apparatus includes the wide angle lens system.

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Номер записи: 1
29-03-2012 дата публикации

Zoom lens optical system and image pickup apparatus having the same

Номер: US20120075718A1
Автор: Jin-seon Seo
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A zoom lens optical system includes a first lens unit having a positive refractive index, a second lens unit which is arranged behind the first lens unit and has a negative refractive index, a third lens unit which is arranged behind the second lens unit and has a positive refractive index, and a fourth lens unit which is arranged behind the third lens unit and has a positive refractive index. An aperture is arranged within the third lens unit to prevent reduction of shutter speed due to large diameter of the zoom lens optical system.

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Номер записи: 2
05-04-2012 дата публикации

Macro-lens system and photographing apparatus having the same

Номер: US20120081798A1
Автор: Jae-myung Ryu
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A macro-lens system and a photographing apparatus having the macro-lens system. The macro-lens system includes: first, second, third, fourth, and fifth lens groups which are arranged in order from an object side to an image side, wherein the first lens group has a positive refractive power and is fixed during focusing, the second lens group has a negative refractive power and is moved during focusing, the third lens group has a positive refractive power and is fixed during focusing, the fourth lens group has a positive refractive power and is moved during focusing, and the fifth lens group has a negative refractive power.

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Номер записи: 3
17-01-2013 дата публикации

Lens

Номер: US20130016437A1
Автор: Paul Firth
Принадлежит: Individual

The invention relates to a lens comprising two or more seating surfaces and an optical axis offset from the centre of the lens such that the optical axis is spaced by a first distance from a first seating surface and by a second distance from a second seating surface. The first and second distances are different so that the lens can be orientated to provide at least two different optical axis heights depending upon which seating surface is chosen to seat the lens.

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Номер записи: 4
07-03-2013 дата публикации

Zoom lens and photographing apparatus including the same

Номер: US20130057747A1
Автор: Jin-woo Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A zoom lens and a photographing apparatus including the zoom lens that includes a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power that are sequentially arranged from an object side; during zooming from wide to telephoto, the distance between the first and second lens groups decreases and the distance between the second and third lens groups increases; the first lens group includes a first lens having a negative refractive power and is a double-concave lens and a second lens having a positive refractive power that are sequentially arranged from the object side; and the second lens group includes a third lens having a positive refractive power, being disposed closest to the image side, and is a meniscus lens having a concave surface toward the object side.

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Номер записи: 5
25-07-2013 дата публикации

Optical sheet, optical unit and lighting device using the same

Номер: US20130188364A1
Автор: Dong Hyun Lee, Su Hyeon Cho
Принадлежит: LG Innotek Co Ltd

The present invention relates to an optical sheet or an optical unit used for a lighting device. In particular, the present invention provides an optical sheet comprising a plurality of lens patterns formed on a base member, where SAG (height H: lens diameter R) of the lens pattern ranges from 0.01 to 0.3. The present invention provides an optical sheet which minimizes total reflection by adjusting SAG of a lens pattern formed on a base member, thereby realizing a high-brightness lighting device.

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Номер записи: 6
14-11-2013 дата публикации

Telephoto zoom lens system and photographing apparatus having the same

Номер: US20130301141A1
Автор: Jae-myung Ryu
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A telephoto zoom lens system includes a first lens group having a positive focal length, a second lens group having a negative focal length, a third lens group having a positive or negative focal length, a fourth lens group having a positive focal length, and a fifth lens group for performing hand shake compensation by allowing a portion of the fifth lens group to move perpendicularly to the optical axis. During zooming, the first and fifth lens groups are fixed and the second, third, and fourth lens groups move, and the third or fourth lens group is a focusing lens group.

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Номер записи: 7
13-02-2014 дата публикации

Imaging lens and camera module

Номер: US20140043696A1
Автор: Dukkeun Kwon
Принадлежит: LG Innotek Co Ltd

Provided is an imaging lens and a camera module, the device including in an orderly way from an object side, a first lens with positive (+) refractive power; a second lens with negative (−) refractive power; a third lens with negative (−) refractive power; a fourth lens with negative (−) refractive power; and a fifth lens with negative (−) refractive power, wherein the lens is concavely formed at an object side surface.

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Номер записи: 8
01-01-2015 дата публикации

TOUCH-SENSITIVE DISPLAY DEVICE AND TOUCH-SENSITIVE DEVICE

Номер: US20150002437A1
Автор: LIU CHUN-CHIA, Wang Wen-Chun, Ye Zhi-Ting
Принадлежит:

A touch-sensitive display device includes a display, a lens, and a touch-sensitive element. The lens is positioned above the display, where a surface of the lens is divided into a periphery region and a central region, the central region is planar, and the periphery region is non-planar. The touch-sensitive element is disposed between the lens and the display. 1. A touch-sensitive display device , comprising:a display having a display area for emitting image beams and a border frame beside the display area;a lens disposed on the display, wherein a surface of the lens facing away from the display is divided into a periphery region and a central region, the central region overlaps the display area and is planar, and the periphery region overlaps the border frame and is non-planar;at least one optical film formed on and in contact with one surface of the lens facing the display, wherein an index of refraction of the optical film is smaller than an index of refraction of the lens; anda touch-sensitive element disposed between the optical film and the display, wherein a first refraction interface is formed between the touch-sensitive element and the optical film, a second refraction interface is formed between the optical film and the lens, the non-planar periphery region serves as a third refraction interface, and a part of the image beams passes through the first refraction interface, the second refraction interface, and the third refraction interface in succession.2. The touch-sensitive display device as claimed in claim 1 , wherein the periphery region of the lens forms a curved surface.3. The touch-sensitive display device as claimed in claim 2 , wherein the periphery region of the lens forms a partial spherical surface.4. The touch-sensitive display device as claimed in claim 1 , wherein the periphery region of the lens forms an inclined plane.5. The touch-sensitive display device as claimed in claim 1 , wherein the touch-sensitive element is integrally formed ...

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Номер записи: 9
07-01-2021 дата публикации

HOMOGENIZER, ILLUMINATING OPTICAL SYSTEM, AND ILLUMINATOR

Номер: US20210003911A1
Автор: KOYANAGI Atsushi, ONO Kensuke, OOI (Deceased) Yoshiharu, TASHIMA Koichi
Принадлежит: AGC Inc.

A homogenizer includes a convex-lens array pair including a first convex-lens array disposed on a light entrance side and a second convex-lens array disposed on a light emission side. The first convex-lens array and the second convex-lens array are disposed so as to face each other such that each of the convex-lens arrays has a lens surface opposed to each other outward or inward. The first convex-lens array includes a plurality of first convex lenses in an array arrangement. The second convex-lens array includes a plurality of second convex lenses in an array arrangement. The first convex lens has an average internal transmission angle for incident light entering a lens-surface center region in the lens cross-section and being in parallel with the symmetry axis being equal to or more than 1.3 times an average internal transmission angle of a spherical convex lens. 1. A homogenizer comprising a convex-lens array pair including a first convex-lens array disposed on a light entrance side and a second convex-lens array disposed on a light emission side ,wherein the first convex-lens array and the second convex-lens array are disposed so as to face each other such that each of the convex-lens arrays has a lens surface opposed to each other outward or inward,wherein the first convex-lens array includes a plurality of first convex lenses having a same shape which are disposed in an array arrangement on one surface,wherein the second convex-lens array includes a plurality of second convex lenses having a same shape which are disposed in an array arrangement on one surface,wherein the first convex lenses and the second convex lenses form convex-lens pairs in each of which the first convex lens and the second convex lens face each other and have a common symmetry axis,wherein the first convex lens, in a lens cross-section including the symmetry axis, has an average internal transmission angle for incident light entering a lens-surface center region in the lens cross-section ...

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Номер записи: 10
03-02-2022 дата публикации

Optical waveguide unit, array, and flat lens

Номер: US20220035094A1
Автор: Chao FAN, Dongcheng Han
Принадлежит: Anhui Easpeed Technology Co Ltd

An optical waveguide unit, an optical waveguide array including optical waveguide units, and a flat lens including optical waveguide arrays. The optical waveguide unit includes: at least one group of total reflection layers, each group including at least one type of total reflection layer, and each type of total reflection layer including at least one single total reflection layer; and at least two sub-waveguides, one group being arranged between every two adjacent sub-waveguides.

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Номер записи: 11
21-01-2021 дата публикации

DETECTION LIGHT SOURCE MODULE AND DETECTION DEVICE

Номер: US20210018759A1
Автор: Chen Yu-Lin
Принадлежит: WISTRON CORPORATION

A detection light source module and a detection device are provided. The detection light source module includes a light emitting component, a light shape adjusting component, and a single band pass filter. The light emitting component is adapted to provide a light beam. The light shape adjusting component is located on a transmission path of the light beam and is adapted to adjust a light shape of the light beam. The light beam forms a strip lighting region through the light shape adjusting component, wherein the strip lighting region has a plurality of sub-lighting regions. The sub-lighting regions have the same size and do not overlap each other. The single band pass filter is located on the transmission path of the light beam and is located between the light emitting component and the light shape adjusting component. 1. A detection light source module , comprising:a light emitting component, adapted to provide a light beam;a light shape adjusting component, located on a transmission path of the light beam and adapted to adjust a light shape of the light beam, wherein the light beam forms a strip lighting region through the light shape adjusting component, the strip lighting region comprises a plurality of sub-lighting regions that are of the same size and do not overlap each other; anda single band pass filter, located on the transmission path of the light beam and located between the light emitting component and the light shape adjusting component.2. The detection light source module according to claim 1 , wherein the strip lighting region is of a first length in a first direction and of a second length in a second direction claim 1 , and the second length is greater than the first length.3. The detection light source module according to claim 2 , wherein the light shape adjusting component comprises a light incidence surface claim 2 , a side surface claim 2 , and a light emergence surface claim 2 , the side surface connects the light incidence surface and the ...

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Номер записи: 12
21-01-2021 дата публикации

THIN LIGHT OPTICAL SYSTEM FOR A WEARABLE VIRTUAL REALITY DISPLAY DEVICE

Номер: US20210018955A1
Автор: CHEN YUN-PEI, CIOU GUO-YANG
Принадлежит:

A thin light optical system of a wearable virtual reality display device having a convex lens and a concave lens. The secondary optical reflection through the convex lens shortens the focal length of the entire optical system to about 16.5 mm, so that the display can be placed 1 mm from the convex lens. The convex lens provides a magnification function of 6 times. The concave lens and the convex lens are made of light material thereby reducing the volume and weight of the virtual reality display device which increases the wearing comfort. 2. The thin light optical system of a wearable virtual reality (VR) display device of claim 1 , wherein the convex lens comprises a plastic lens.3. The thin light optical system of a wearable virtual reality (VR) display device of claim 1 , wherein the concave lens comprises a plastic lens.4. The thin light optical system of a wearable virtual reality (VR) display device of claim 1 , wherein the convex lens and concave lens in combination increase the contrast of an image claim 1 , and contrast of a center of field of view is 16 cycle/mm (Modulation transfer function (MTF)=0.5) .5. The thin light optical system of a wearable virtual reality (VR) display device of claim 1 , wherein chromatic aberration of the concave lens and the convex lens in combination is less than 0.5 mm.6. The thin light optical system of a wearable virtual reality (VR) display device of claim 1 , wherein convex lens and concave lens distortion of an image is 25%.7. The thin light optical system of a wearable virtual reality (VR) display device of claim 1 , wherein field of view of the convex lens and the concave lens is 91 degrees. The application is based on, and claims priority from, Chinese Application Serial Number 201910656052.7, filed on Jul. 19, 2019, the disclosure of which is hereby incorporated by reference herein in its entirety.The invention relates to a virtual reality (VR) display device, and more particularly to a thin and light optical system ...

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Номер записи: 13
16-01-2020 дата публикации

MICRO-OPTICAL COMPONENT FOR GENERATING AN IMAGE

Номер: US20200021723A1
Автор: GIMKIEWICZ Christiane, Hendricks Nicholas, Nussbaum Pascal
Принадлежит:

A micro-optical component for generating an image, including a substrate and a lens. The substrate, includes a first surface and a second surface, wherein the first surface includes an aperture, and the second surface is arranged to be connected to a pixel array. The lens is placed on the first surface so as to cover the aperture. The focal point of the lens belongs to the second surface. The lens includes an obscuration element generating at the lens an obscured area and an unobscured area. The obscuration element is dimensioned to reduce the light transmittance towards the pixels for a fraction of the viewing angles only and at the same time. The obscured area is dimensioned so that the optical resolution of the lines is not smaller than the image resolution given by the size of the pixels. 2. The micro-optical component of claim 1 , wherein said obscuration element defining at the lens an obscured area and an unobscured area claim 1 ,wherein said second part of the light beam is prevented to pass through the lens by said obscured area,and wherein said first part of the light beam is allowed to pass through said unobscured area,the ratio between the obscured area and the total area at the entrance pupil being comprised in the range from 20% to 50%.3. The micro-optical component of claim 1 , wherein said obscuration element is on the lens claim 1 , in the lens claim 1 , in front of the lens or behind the lens.4. The micro-optical component of claim 1 , said lens comprising an axis of symmetry claim 1 , said obscured area being symmetric with regard to said axis of symmetry.5. The micro-optical component of claim 1 , wherein said obscuration element improves the image resolution for a first range of the angles of incidence while lowers the image resolution for a second range of the angles of incidence.6. The micro-optical component of claim 1 , said lens having an aspherical profile claim 1 , said aperture comprising a center claim 1 , said lens being placed on said ...

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Номер записи: 14
28-01-2016 дата публикации

HEADLAMP FOR VEHICLES

Номер: US20160025290A1
Автор: Kloos Gerhard
Принадлежит:

The invention relates to headlamps for vehicles comprising a number of semiconductor-based light sources being arranged on a substrate, and comprising an optical unit having at least one lens with a lens face for the generation of a given light distribution, wherein the lens face can be calculated by means of a lens equation, which is formed by means of a conic section equation completed by a deformation parameter, so that the lens face is determined with a deviation from a conic section shape, wherein a first deformation parameter for the change of the lens face according to differing degrees of shape change in the direction of the optical axis and vertically to the optical axis are given on one hand and that a second deformation parameter for the change of the lens face according to identical degrees of shape change in the direction of the optical axis and vertically to the optical axis are given on the other hand. 1. A headlamp for a vehicle comprising:a plurality of semiconductor-based light sources arranged on a substrate;an optical unit having at least one lens with a lens face for the generation of a given light distribution,wherein the lens surface can be calculated by means of a lens equation, which is formed by means of a conic section equation completed by a deformation parameter, so that the lens face is determined with a deviation from a conic section shape,wherein a first deformation parameter (U) for the change of the lens face is provided according to various shape change degrees in the direction of the optical axis and vertically relative to the optical axis on one hand, andthat a second deformation parameter (V) for the change of the lens face is provided according to identical shape change degrees in the direction of the optical axis and vertically to the optical axis on the other hand.2. The headlamp according to claim 1 , wherein the first deformation parameter (U) serves the ellipsoid-of-rotation-shaped change of the lens face and the second ...

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Номер записи: 15
26-01-2017 дата публикации

Refraction lens and plate-form structure which has multiple refraction lenses extending therethrough

Номер: US20170023205A1
Автор: Lieh-Hsiung Hu, Shui-Tien TSAI, Yu-Hsiang Lin
Принадлежит: Individual

A refraction lens is integrally formed by transparent material including glass and acrylic. The refraction lens includes a body, wherein an incidence face and a light emitting face respectively formed on two opposite sides of the body. In the preferred embodiment, the body is a cylindrical structure, the incidence face is convex structure and the emitting face has at least one collecting unit formed thereon. The at least one collecting unit includes multiple collecting portions arranged in array, wherein each collecting portion is peripherally protruded from the emitting face. Each correcting portion is formed with a curved top for providing a dotted collecting effect.

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Номер записи: 16
10-02-2022 дата публикации

Optical lens and method for manufacturing same

Номер: US20220043183A1
Автор: Atsushi MOTEGI, Katsushi NISHIMORI, Kensuke Oshima, Kentaro Ishihara, Masahiro Kanda, Mitsutake SUEMATSU, Mitsuteru Kondo, Noriyuki Kato, Shinya Ikeda, Shoko Suzuki, Tatsunobu OGATA
Принадлежит: Mitsubishi Gas Chemical Co Inc

Provided is an optical lens formed by integrally molding a lens part that is an optically effective portion and has a light incidence/emission surface, and a lens edge part that is an optically ineffective portion and has a surface thereof except the light incidence/emission surface. The lens edge part includes a non-transparent region in part or all thereof, the lens part and the lens edge part include a thermoplastic resin, and the non-transparent region in the lens edge part contains a total of 0.1-5 mass % of one or more of a black dye and a black pigment.

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Номер записи: 17
24-01-2019 дата публикации

ULTRA THIN FRESNEL LENSES AND OTHER OPTICAL ELEMENTS

Номер: US20190025474A1
Автор: Petersen Joel Mikael, Rich Christopher Chapman
Принадлежит:

Ultra thin Fresnel lenses and methods of forming the same are described herein. An optical element comprising an ultra thin Fresnel lens includes a plurality of Fresnel elements formed on a surface of a substrate. Each of the plurality of Fresnel surface elements has an angled facet portion and a shallow or substantially horizontal portion. The Fresnel surface elements can be formed, for example, by a hot stamp or cold transfer method. 1. An optical element , said optic element having first and second surfaces separated from each other in a vertical direction , said optical element comprising:a plurality of Fresnel lens elements spaced in a horizontal direction with respect to each other, said plurality of Fresnel lens elements comprising angled facet portions and substantially horizontal portions, said plurality of Fresnel lens elements closer in said vertical direction to said first surface than said second surface,wherein said angled facet portion has a depth that is on average less than about 5 microns.2. The optical element of claim 1 , wherein the depth is on average less than about 2.5 microns.3. The optical element of claim 1 , wherein the depth is on average less than about 1 micron.4. The optical element of claim 1 , wherein the vertical distance from (i) points of the angled facet portion closest to said second surface to (ii) the part of the closest substantially horizontal portion farthest from the second surface is on average less than 5 microns.5. The optical element of claim 1 , wherein the vertical distance from (i) points of the angled facet portion closest to said second surface to (ii) the part of the closest substantially horizontal portion farthest from the second surface is on average less than 2.5 microns.6. The optical element of claim 1 , wherein the vertical distance from (i) points of the angled facet portion closest to said second surface to (ii) the part of the closest substantially horizontal portion farthest from the second surface is ...

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Номер записи: 18
28-01-2021 дата публикации

OPTICAL LENS

Номер: US20210024675A1
Автор: FUJIMURA Futoshi, MOORTHI Sunil Krzysztof, SAITO Haruka, WASA Hideki
Принадлежит: Mitsui Chemicals, Inc.

The optical lens of the present invention contains a molded product constituted with a cyclic olefin-based copolymer having a constitutional unit (A) derived from an α-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin, and a constitutional unit (C) derived from an aromatic vinyl compound represented by a specific chemical formula. 2. The optical lens according to claim 1 ,wherein an Abbe number (ν) is 30 or more and 55 or less.3. The optical lens according to claim 1 ,wherein in a case where a total content of the constitutional unit (A), the constitutional unit (B), and the constitutional unit (C) in the cyclic olefin-based copolymer is 100 mol %, a content of the constitutional unit (A) in the cyclic olefin-based copolymer is 10 mol % or more and 80 mol % or less.4. The optical lens according to claim 1 ,wherein in a case where a total content of the constitutional unit (B) and the constitutional unit (C) in the cyclic olefin-based copolymer is 100 mol %, a content of the constitutional unit (C) in the cyclic olefin-based copolymer is 1 mol % or more and 95 mol % or less.6. The optical lens according to claim 5 ,wherein m in Formula (B-1) represents a positive integer.7. The optical lens according to claim 1 ,wherein in General Formulas (C-1) and (D-1), all of m, n, and q represent 0, 1, or 2, and q represents 1 or 2 in a case where both of m and n represent 0.8. The optical lens according to claim 1 ,wherein a glass transition temperature (Tg) of the cyclic olefin-based copolymer measured using a differential scanning calorimeter (DSC) is 100° C. or higher and 180° C. or lower.9. The optical lens according to claim 1 ,wherein a limiting viscosity [η] of the cyclic olefin-based copolymer measured in decalin at 135° C. is 0.05 dl/g or higher and 5.00 dl/g or lower.10. The optical lens according to claim 1 ,wherein a birefringence is 1 nm or higher and 200 nm or lower.11. The optical lens according to claim 1 ,wherein the ...

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Номер записи: 19
24-01-2019 дата публикации

Beam shaper with optical freeform surfaces and laser optic with a beam shaper of this kind

Номер: US20190025599A1
Автор: Sven Kiontke, Sven Wickenhagen, Ulrike Fuchs
Принадлежит: asphericon GmbH

A beam shaper is provided that includes two optical elements arranged one behind the other along an optical axis. Each optical element has at least one optically active freeform surface. The optical elements are arranged displaceable by a relative displacement against each other along at least one axis substantially perpendicular to the optical axis. The optically active freeform surfaces have a height profile, which is a polynomial expansion having polynomial coefficients different from zero in finitely many polynomial orders. At least one polynomial coefficient, assigned to a polynomial order greater than three, is different from zero. The height profiles of the at least two freeform surfaces are selected such that input beams distributed rotationally symmetric about the optical axis with a Gaussian beam density profile are diffracted into output beams which are limited in a receiving plane within a rectangular cross section and are uniformly distributed about the optical axis.

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Номер записи: 20
23-01-2020 дата публикации

METHOD AND APPARATUS OF LIGHT CONTROL USING MICROLENS ARRAYS

Номер: US20200025979A1
Автор: Shen James Jianming
Принадлежит:

The disclosure presents methods and apparatus of light transmission control, comprising two layers of film separated by air, wherein each film is inlaid with a convex micro-lenses array. The first film will focus incoming light through the microlens, whereas the second film contains a grid of opaque areas that will be structured to block or un-block the focal planes of light depending on the thickness of the air layer. When the light is unblocked, the micro lens array in the second film will disperse the light to the other side of the film so it appears transparent or translucent. An attached hand pump can control the thickness of the air layer. The method and apparatus to control light levels is effective, reliable, affordable, intuitive and easy to use. The films can be attached to existing surfaces provide full transparency, a dimming effect, or complete blackout. 1. A method of adding light transmission control to a light transmissive surface , comprising:providing a first layer of film on the surface;providing a second layer of film, wherein the first layer is sandwiched between the second layer and the surface;enclosing a layer of air between the first and second layers of film;wherein each layer of film is inlaid with a transparent micro-lens array;wherein every micro-lens in the first layer of film is center-aligned with a micro-lens in the second layer of film and vice versa;adjusting the thickness of the air layer to control the light transmission.2. The method of claim 1 , wherein the film is made of non-opaque material.3. The method of claim 1 , wherein the thickness of the air layer is adjusted by inflating or deflating using a pump or valve.4. The method of claim 1 , wherein the lens is a circular or cylindrical lens.5. The method of claim 2 , wherein the refractive index of the lens is higher than that of the film.6. The method of claim 5 , wherein the micro-lens is a convex lens with its focal plane tangent to the film surface facing the air layer.7. ...

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Номер записи: 21
28-01-2021 дата публикации

OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD OF MANUFACTURING OPTICAL SYSTEM

Номер: US20210026133A1
Автор: ITO Tomoki, MAKIDA Ayumu, MIWA Satoshi, TSUBONOYA Keisuke, UEHARA Takeru, YABUMOTO Hiroshi, Yamamoto Hiroshi, YAMASHITA Masashi
Принадлежит:

An optical system (LS) includes lenses (LL) satisfying the following conditional expressions, 3. The optical system according to claim 1 , wherein the lens satisfies at he following conditional expression:{'br': None, '18.0<νdLZ<35.0.'}4. The optical system according to claim 1 , wherein the lens satisfies the following conditional expression:{'br': None, 'i': ndLZ', 'dLZ, '1.83<+(0.00787×ν).'}5. The optical system according to claim 1 , wherein the lens satisfies the following conditional expression:{'br': None, '1.55 Подробнее

Номер записи: 22
24-02-2022 дата публикации

OPTICAL FILM

Номер: US20220057547A1
Автор: KIM Hyeryong, Kim Jinhwan, KIM Jitae, LEE Jihoon, LEE Taejun, YOON Seongyong
Принадлежит:

An optical film is disclosed. The optical film may include a first base film, and a diffusion lens layer disposed on one surface of the first base film and including a plurality of square pyramid-shaped lenses. Edges meeting at vertices of the plurality of square pyramid-shaped lenses may be curved lines. Among the plurality of square pyramid-shaped lenses, one surface of a first square pyramid-shaped lens may meet one surface of a second square pyramid-shaped lens to form a boundary line, and the one surface of the first square pyramid-shaped lens and the one surface of the second square pyramid-shaped lens may be symmetrical with respect to the boundary line as an axis. 1. An optical film comprising:a first base film; anda diffusion lens layer disposed on one surface of the first base film and including a plurality of square pyramid-shaped lenses,wherein edges meeting at vertices of the plurality of square pyramid-shaped lenses are curved lines, andwherein among the plurality of square pyramid-shaped lenses, one surface of a first square pyramid-shaped lens meets one surface of a second square pyramid-shaped lens to form a boundary line, and the one surface of the first square pyramid-shaped lens and the one surface of the second square pyramid-shaped lens are symmetrical with respect to the boundary line as an axis.2. The optical film of claim 1 , wherein the difference between maximum and minimum ones of the heights of the vertices of the plurality of square pyramid-shaped lenses is 2.5 μm or less.3. The optical film of claim 1 , wherein the difference between maximum and minimum ones of the heights of boundary lines each being defined between two square pyramid-shaped lenses among the plurality of square pyramid-shaped lenses is 2.5 μm or less.4. The optical film of claim 3 , wherein the difference between the minimum one of the heights of boundary lines each being defined between two square pyramid-shaped lenses among the plurality of square pyramid-shaped ...

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Номер записи: 23
24-02-2022 дата публикации

Imaging lens system

Номер: US20220057604A1
Автор: In Gun KIM, Ju Hwa Son, Ju Sung Park, Yong Joo Jo, You Jin JEONG
Принадлежит: Samsung Electro Mechanics Co Ltd

An imaging lens system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens disposed in order from an object side. In the imaging lens system, TTL/2ImgHT is less than 0.640, where TTL is an axial distance between an object-side surface of the first lens and an imaging plane and 2ImgHT is a diagonal length of the imaging plane.

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Номер записи: 24
06-02-2020 дата публикации

OPTICAL LENS AND OPTICAL CAMERA LENS

Номер: US20200041700A1
Автор: WANG Hailong
Принадлежит:

The present disclosure provides an optical lens and an optical camera lens. The optical lens includes: an optical portion at a central position; a peripheral portion surrounding the optical portion; and a bearing portion. The peripheral portion includes an object-side surface facing an object side, an image-side surface facing an image side, and a side surface around an optical axis connecting the object-side surface with the image-side surface. The side surface includes a gate portion and a distal end portion facing right towards the gate portion in a radial direction of the optical lens. The bearing portion extends from the image side surface towards the image side. On a plane perpendicular to the optical axis, an orthographic projection of the bearing portion is located between an orthographic projection of the gate portion and an orthographic projection of the distal end portion. 1. An optical lens , comprising:an optical portion at a central position;a peripheral portion surrounding the optical portion; anda bearing portion,wherein the peripheral portion comprises an object-side surface facing an object side, an image-side surface facing an image side, and a side surface around an optical axis connecting the object-side surface with the image-side surface; the side surface comprises a gate portion and a distal end portion facing right towards the gate portion in a radial direction of the optical lens; the bearing portion extends from the image side surface towards the image side; and, on a plane perpendicular to the optical axis, an orthographic projection of the bearing portion is located between an orthographic projection of the gate portion and an orthographic projection of the distal end portion.2. The optical lens as described in claim 1 , wherein the bearing portion comprises an end surface facing away from the image-side surface claim 1 , and a side wall extending from the end surface to the image-side surface; the side wall comprises a first surface ...

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Номер записи: 25
06-02-2020 дата публикации

VIRTUAL IMAGE DISPLAY DEVICE

Номер: US20200041785A1
Автор: KOMATSU Akira, MIYAO Toshiaki, TAKAGI Masayuki, TAKEDA Takashi, YAMAGUCHI Tokito
Принадлежит: SEIKO EPSON CORPORATION

A virtual image display device includes an image element configured to display an image, a first lens disposed in an extraction position of image light and including at the image element side thereof a convex surface, a second lens disposed further toward the image element side than the first lens and including a concave surface bonded to the convex surface of the first lens, a half mirror provided in a bonding portion for bonding together the convex surface and the concave surface, a transmission/reflection selection member provided at a light emitting side of the first lens and configured to selectively perform transmission or reflection of the light depending on a polarization state of the light, and a light-guiding portion keeping close contact between the image element and the second lens and configured to guide the image light. 1. A virtual image display device comprising:an image element configured to display an image;a first lens disposed in an extracting position of image light and including, at the image element side thereof, a convex surface;a second lens disposed further toward the image element side than the first lens and including a concave surface bonded to the convex surface of the first lens;a half mirror provided in a bonding portion for bonding together the convex surface and the concave surface;a transmission/reflection selection member provided at a light emitting side of the first lens and configured to selectively perform transmission or reflection of the light, depending on a polarization state of the light; anda light-guiding portion keeping close contact between the image element and the second lens and configured to guide the image light.2. The virtual image display device according to claim 1 , wherein the light-guiding portion is an adhesion portion configured to adhere the image element to the second lens.3. The virtual image display device according to claim 1 , comprising an adhesive escape portion configured to cause a portion of an ...

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Номер записи: 26
18-02-2021 дата публикации

PORTABLE REFRACTOMETER

Номер: US20210048388A1
Автор: SHECHTERMAN Mark
Принадлежит:

Disclosed herein, according to an aspect of some embodiments, is a dipping refractometer. The dipping refractometer includes a prism and a casing, housing a light source and a light sensor. The prism is mounted in/on the casing such as to allow dipping the prism in a fluid such that two surfaces of the prism and the fluid forming two respective direct prism-fluid interfaces. The prism, the light source, and the light sensor are configured such that for a continuous range of values of fluid refractive indices, most of the light incident on the light sensor, originating from the light source, undergoes total internal reflection off of each of the two direct prism-fluid interfaces. 140.-. (canceled)41. A dipping refractometer , comprising:a casing, housing a light source, a light sensor, and a control unit; and wherein said control unit comprises electronic circuitry functionally associated with said light source and said light sensor;', 'wherein said prism is mounted in or on said casing and allowing to dip said prism in a fluid such that said exposed surfaces and the fluid forming respective direct prism-fluid interfaces;', 'wherein said prism, said light source, and said light sensor, are configured such that at least some of the light emitted from said light source enters said prism, travels to one exposed surface and reflects therefrom, travels to the other exposed surface and reflects therefrom, travels to said light sensor; and', 'wherein said light sensor is configured to send to said control unit a signal indicative of a power of a light incident on said light sensor., 'a prism comprising at least two exposed surfaces;'}42. The refractometer of claim 41 , further comprising a temperature sensor configured to measure the temperature of said prism and send a second signal to said control unit indicative said temperature measurement.43. The refractometer of claim 41 , further comprising a reference light sensor claim 41 , wherein said prism claim 41 , said light ...

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Номер записи: 27
18-02-2021 дата публикации

COMPOSITE COMPONENT MADE OF OPTICAL COMPONENTS, METHOD FOR PRODUCING A COMPOSITE COMPONENT AND DEVICE COMPRISING AN OPTICAL COMPONENT

Номер: US20210048594A1
Автор: HALBRITTER Hubert, Singer Frank
Принадлежит:

A composite component, a device, and method for producing the composite component including a plurality of optical components, a removable sacrificial layer, a retaining structure and a common intermediate carrier are provided, wherein the optical components each have an optical element for shaping a light beam and the sacrificial layer is arranged in the vertical direction at least in places between the intermediate carrier and the optical components. The retaining structure includes retaining elements, wherein the retaining structure and the sacrificial layer form a mechanical connection between the intermediate carrier and the optical components. The optical components are mechanically connected to the intermediate carrier only via the retaining structure, wherein the retaining elements are formed in such a way that under mechanical load they release the optical components so that the optical components are formed to be detachable from the intermediate carrier and thus transferable. 1. A method of producing a plurality of transferable optical components on a common intermediate carrier , wherein the optical components are configured to shape a light beam and wherein a retaining structure having a plurality of retaining elements forms a mechanical connection between the intermediate carrier and the optical components , comprising the following steps:attaching or forming a plurality of optical components on the intermediate carrier, wherein a sacrificial layer is arranged in the vertical direction at least in places between the intermediate carrier and the optical components; andremoving the sacrificial layer, as a result of which the optical components are mechanically connected to the intermediate carrier only via the retaining structure, wherein the retaining elements release the optical components under mechanical load, so that the optical components are formed to be detachable from the intermediate carrier and thus transferable.2. A composite component having ...

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Номер записи: 28
18-02-2021 дата публикации

Lens module

Номер: US20210048612A1
Автор: Yuchan Gao
Принадлежит: AAC Optics Solutions Pte Ltd

A lens module includes a lens barrel including a first barrel wall and a second barrel wall that define a receiving space, and a lens group in the lens barrel and including a first lens that has a first surface, a second surface and a side surface connecting the first surface with the second surface. The side surface includes at least two spaced flat surface sections, and an extending surface sections including a first extending surface section and a second extending surface section. The first extending surface section extends from the second extending surface section in a direction facing away from the optical axis, and the second extending surface section extends from the first extending surface section in the same direction. The first and second extending surface sections cooperate to adjust the incident angle of light and reduce the stray light reflected from the side surface to the imaging surface.

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Номер записи: 29
18-02-2021 дата публикации

Lens and lens assembly

Номер: US20210048666A1
Автор: Lingyun Xu
Принадлежит: AAC Optics Solutions Pte Ltd

Provided are a lens and a lens assembly including a lens barrel defining a receiving space and provided with a light-through hole and the lens received in the receiving space. The lens includes an optical portion for imaging and a peripheral portion provided with through holes penetrating through the peripheral portion along an optical axis of the lens. The through holes are distributed on circumferences of different diameters, centers which are located on the optical axis. The farther the circumference is from the optical axis, the more through holes are arranged on the circumference. When light enters regions of the lens where the through holes are arranged, stray light is absorbed, effectively reducing the reflection of the stray light at the peripheral portion and improving imaging quality. The through holes do not affect assembly accuracy of the lens and reduce appearance yield of the lens or increase cost.

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Номер записи: 30
18-02-2016 дата публикации

DISPLAY DEVICE

Номер: US20160047950A1
Автор: LOUH SEI-PING
Принадлежит:

A display device includes a base, a display panel, a lens member, and a cover. The base includes a bottom plate and a sidewall perpendicularly extending from peripheral edges of the bottom plate. The sidewall includes an inner surface and an opposing outer surface. The display panel is received in the base and attached to the bottom plate. A gap is formed between the display panel and the inner surface. The lens member is attached to the inner surface and covers portions of the bottom plate corresponding to the gap. The lens member includes a bottom surface, an opposing light output surface, a first side surface, and an opposing second side surface. The first and second side surfaces are interconnected between the bottom surface and the light output surface. Striped protrusions are formed on the light output surface. The cover is supported on the base. 1. A display device comprising:a base comprising a bottom plate and a sidewall perpendicularly extending from peripheral edges of the bottom plate, the sidewall comprising an inner surface and an outer surface opposite to the inner surface;a display panel received in the base and attached to the bottom plate, a gap formed between peripheral sides of the display panel and the inner surface;a lens member attaching to the inner surface and covering portions of the bottom plate corresponding to the gap, the lens member comprising a bottom surface, a light output surface opposite to the bottom surface, a first side surface, and a second side surface opposite to the first side surface, the first side surface and the second side surface interconnected between the bottom surface and the light output surface, the first side surface and the second side surface being perpendicular to the bottom surface, a plurality of striped protrusions formed on the light output surface; anda cover supported on the base and comprising a display portion and an extension portion, the display portion positioned above the display panel and aligned ...

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Номер записи: 31
15-02-2018 дата публикации

Systems, articles, and methods for integrating holographic optical elements with eyeglass lenses

Номер: US20180045966A1
Автор: Lloyd Frederick Holland, Matthew Bailey
Принадлежит: Thalmic Labs Inc

Systems, articles, and methods that integrate photopolymer film with eyeglass lenses are described. One or more hologram(s) may be recorded into/onto the photopolymer film to enable the lens to be used as a transparent holographic combiner in a wearable heads-up display employing an image source, such as a microdisplay or a scanning laser projector. The methods of integrating photopolymer film with eyeglass lenses include: positioning photopolymer film in a lens mold and casting the lens around the photopolymer film; sandwiching photopolymer film in between two portions of a lens; applying photopolymer film to a concave surface of a lens; and/or affixing a planar carrier (with photopolymer film thereon) to two points across a length of a concave surface of a lens. Respective lenses manufactured/adapted by each of these processes are also described.

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Номер записи: 32
03-03-2022 дата публикации

Imaging lens system

Номер: US20220066170A1
Автор: Hyuk Joo Kim, Kyu Min Chae
Принадлежит: Samsung Electro Mechanics Co Ltd

An imaging lens system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens disposed in order from an object side. One of the first to ninth lenses is a temperature compensation lens having positive refractive power and having an absolute value of a refractive index temperature coefficient of 10 (10 −6 /° C.) or less.

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Номер записи: 33
03-03-2022 дата публикации

PROJECTION LENS AND PROJECTION DEVICE

Номер: US20220066179A1
Автор: AMANO Masaru, KAYANO Hironobu
Принадлежит: FUJIFILM Corporation

A projection lens is a projection lens that emits incident light through a plurality of lenses, and includes a first lens that is disposed to be closest to an emission side, a second lens which is adjacent to the first lens and of which a diameter is smaller than a diameter of the first lens, and a frame that includes a first surface and is positioned outside the second lens in a radial direction. The first surface faces the first lens, the first surface has a light reflection-reducing structure, and a value of G1/G2 is 1.7 or more in a case where a diameter of the first lens is denoted by G1 and a diameter of the second lens is denoted by G2.

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Номер записи: 34
25-02-2021 дата публикации

Imaging optical system and imaging apparatus

Номер: US20210055507A1
Автор: Kazumasa Kaneda
Принадлежит: Sony Corp

An imaging optical system according to the present disclosure includes a first lens, a second lens, and a third lens. The first lens includes an image-plane-side lens surface having an aspherical shape with an inflection point. The second lens has a meniscus shape including a concave surface toward object side. The third lens has a meniscus shape including a concave surface toward image plane side. The first lens, the second lens, and the third lens are disposed in order from the object side toward the image plane side. The imaging optical system is provided as a bi-telecentric optical system.

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Номер записи: 35
25-02-2016 дата публикации

LED OPTICAL COMMUNICATION RECEIVING LENS AND LED OPTICAL COMMUNICATION SYSTEM

Номер: US20160056899A1
Автор: FAN SHOU-SHAN, JIN GUO-FAN, WU XIAO-FEI, XIONG SI-SI, YANG Tong, ZHU Jun
Принадлежит:

A LED optical communication receiving lens includes a first surface and a second surface opposite to the first surface. The first surface includes a first spherical surface and a second spherical surface connected to the first spherical surface. The second surface includes a third spherical surface and a planar surface connected to the third spherical surface. A position of the LED optical communication receiving lens is defined as a three-dimensional Cartesian coordinate system (x, y, z). Sphere centers and symmetric central points of the first spherical surface, the second spherical surface, and the third spherical surface are located on the x axis. The first spherical surface and the planar surface are transmitted surfaces. The second spherical surface and the third spherical surface are reflective surfaces. The present application also relates to a LED optical communication system including the LED optical communication receiving lens. 1. A LED optical communication receiving lens , comprising:a first surface comprising a first spherical surface and a second spherical surface connected to the first spherical surface; anda second surface opposite to the first surface, the second surface comprises a third spherical surface and a planar surface connected to the third spherical surface;wherein a position of the LED optical communication receiving lens is defined as a three-dimensional Cartesian coordinate system (x, y, z); a sphere center and a symmetric central point of the first spherical surface, a sphere center and a symmetric central point of the second spherical surface, a sphere center and a symmetric central point of the third spherical surface are located on the x axis; the first spherical surface and the planar surface are transmitted surfaces; the symmetric central point of the first spherical surface is located on an origin (0, 0, 0) of the three-dimensional cartesian coordinate system (x, y, z); the planar surface is parallel to a surface formed by the ...

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Номер записи: 36
21-02-2019 дата публикации

CLOAKING DEVICES WITH HALF LENSES AND PLANE MIRRORS AND VEHICLES COMPRISING THE SAME

Номер: US20190056535A1
Автор: Banerjee Debasish, Lee Kyu-Tae
Принадлежит:

A cloaking device includes an object-side, an image-side and a cloaked region between the object side and image-side. An object-side half lens, an image-side half lens and a planar reflection boundary positioned between the object-side half lens and the image-side half lens are included. The object-side half lens and the image-side half lens each comprise an inward facing surface and an outward facing convex surface. The planar reflection boundary comprises an inward facing mirror surface. Light from an object positioned on the object-side of the cloaking device and obscured by the cloaked region is redirected around the cloaked region by the object-side half lens, planar reflection boundary and image-side half lens to form an image of the object on the image-side of the cloaking device such that the light from the object appears to pass through the cloaked region. 1. A cloaking device comprising:an object-side, an image-side, a cloaked region between the object-side and the image-side, and a reference optical axis extending from the object-side to the image-side;an object-side half lens and an image-side half lens, the object-side half lens and the image-side half lens each comprising an inward facing surface, an outward facing convex surface, a thick end and a thin end, wherein the inward facing surface and the outward facing convex surface extend between the thick end and the thin end;a planar reflection boundary positioned between the object-side half lens and the image-side half lens, the planar reflection boundary comprising an inward facing mirror surface oriented parallel with the reference optical axis,wherein light from an object positioned on the object-side of the cloaking device and obscured by the cloaked region is redirected around the cloaked region by the object-side half lens, planar reflection boundary and image-side half lens to form an image of the object on the image-side of the cloaking device such that the light from the object appears to ...

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Номер записи: 37
01-03-2018 дата публикации

OPTICAL MEMBER, LIGHT SOURCE DEVICE, AND IRRADIATION SYSTEM

Номер: US20180058660A1
Автор: FUJIMORI Hiroshi, WAKAFUJI Akiyoshi
Принадлежит: NICHIA CORPORATION

An optical member includes one or more lens surfaces, each lens surface comprising a curved surface having: a curvature in a first direction, and a curvature in a second direction that is perpendicular to the first direction in an imaginary plane perpendicular to an optical axis of incident light. Each of the one or more lens surfaces has a substantially rectangular planar shape when viewed in an optical axis direction, the substantially rectangular planar shape being defined by two sides substantially parallel to the first direction and two sides substantially parallel to the second direction. The curvature in the second direction continuously increases from a first end of each of the one or more lens surfaces in the first direction toward a second end of each of the one or more lens surfaces in the first direction. 1. An optical member comprising: a curvature in a first direction, and', 'a curvature in a second direction that is perpendicular to the first direction in an imaginary plane perpendicular to an optical axis of incident light,, 'one or more lens surfaces, each lens surface comprising a curved surface havingwherein each of the one or more lens surfaces has a substantially rectangular planar shape when viewed in an optical axis direction, the substantially rectangular planar shape being defined by two sides substantially parallel to the first direction and two sides substantially parallel to the second direction, andwherein the curvature in the second direction continuously increases from a first end of each of the one or more lens surfaces in the first direction toward a second end of each of the one or more lens surfaces in the first direction.2. The optical member according to claim 1 , wherein:the curvature in the first direction comprises a spline curve or a Bézier curve,the curvature in the second direction comprises a curve that is a portion of an ellipse at the first end of each of the one or more lens surfaces in the first direction, and a curve ...

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Номер записи: 38
02-03-2017 дата публикации

Container Assembly

Номер: US20170059747A1
Автор: Cole Traci
Принадлежит:

A container assembly includes a bottle that may contain an object. A magnifying unit is positionable within the bottle. Thus, the magnifying unit may magnify the object contained within the bottle thereby facilitating the object to be seen. 1. A container assembly configured to visually magnify an object , said assembly comprising:a bottle configured to contain an object,a magnifying unit being positionable within said bottle wherein said magnifying unit is configured to magnify the object contained within said bottle thereby facilitating the object to be seen.2. The assembly according to claim 1 , wherein said bottle comprises a base having a basal wall and a peripheral wall extending upwardly from said basal wall claim 1 , said basal wall having a top surface.3. The assembly according to claim 1 , further comprising a lid having a top wall and a lip claim 1 , said lid having a raised portion and an outer edge claim 1 , said lip being coextensive with said outer edge claim 1 , said raised portion being centrally positioned on said top wall.4. The assembly according to claim 1 , further comprising a cylinder having a top end claim 1 , a bottom end claim 1 , an inner surface and an outer surface claim 1 , each of said top end and said bottom end being open wherein said cylinder is configured to removably contain the object claim 1 , said inner surface being spaced from said outer surface to define a space within said cylinder claim 1 , said outer surface curving outwardly between said top end and said bottom end.5. The assembly according to claim 4 , wherein:said bottle includes a base and a lid, said base having a top surface; andsaid cylinder is removably positionable in said base having said bottom end abutting said top surface, said lid being removably coupled to said top end, said cylinder being comprised of a translucent material thereby facilitating the object to be visible through said cylinder.6. The assembly according to claim 4 , wherein said magnifying ...

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Номер записи: 39
20-02-2020 дата публикации

LENS ASSEMBLY AND PORTABLE ELECTRONIC DEVICE

Номер: US20200057179A1
Автор: CHOI Tae Su, PARK Ju Sung, SEO Sot Eum, YANG Dong Shin
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A lens assembly includes a lens including an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion, a blocking member disposed in front of the lens and having an opening to allow light to be incident on the lens, and a lens barrel accommodating the lens. The optical portion is noncircular and a portion of the blocking member facing the optical portion in an optical axis direction is located to be higher than a portion of the blocking member facing the flange portion in the optical axis direction. 1. A lens assembly comprising:a lens comprising an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion;a blocking member disposed in front of the lens and comprising an opening to allow light to be incident on the lens; anda lens barrel accommodating the lens,wherein the optical portion is noncircular, andwherein a portion of the blocking member, facing the optical portion in an optical axis direction, is located to be higher than a portion of the blocking member, facing the flange portion in the optical axis direction.2. The lens assembly of claim 1 , wherein the blocking member is in contact with the flange portion and is not in contact with the optical portion.3. The lens assembly of claim 1 , wherein the portion of the blocking member facing the optical portion in the optical axis direction claim 1 , comprises an arc shape.4. The lens assembly of claim 1 , wherein the optical portion comprises a first edge and a second edge having an arc shape when viewed in the optical axis direction claim 1 , and a third edge and a fourth edge claim 1 , connecting the first edge and the second edge to each other.5. The lens assembly of claim 4 , wherein the flange portion extends from the first edge and the second edge.6. The lens assembly of claim 4 , wherein boundaries between the third and fourth edges and the blocking member are located to be ...

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Номер записи: 40
20-02-2020 дата публикации

Optical Lens for a Photodiode-Equipped Device

Номер: US20200057180A1
Автор: Jatekos Balazs, Jutte Peter, Spruit Hans, van der Lee Alexander
Принадлежит:

The invention relates to an optical lens () for a photodiode-equipped device, which is arrangeable at and/or in the photodiode-equipped device in such a way that light beams () emitted by at least two photodiodes of the photodiode-equipped device transmit into the optical lens () through a light entrance side (S) of the optical lens () and emerge from the optical lens () at a light exit side (S) of the optical lens (), and for which a central longitudinal axis () extending centrally through the light entrance side (S) and centrally through the light exit side (S) is definable, wherein the light entrance side (S) of the optical lens () and the light exit side (S) of the optical lens () are embodied in each case as a freeform surface for off-axis projection in such a way that the light beams () emitted by the photodiodes () arranged on a circular path around the central longitudinal axis () are focused off-axis by means of the optical lens (). 1. An optical lens for a photodiode-equipped device ,which is arrangeable at and/or in the photodiode-equipped device in such a way that light beams emitted by at least two photodiodes of the photodiode-equipped device transmit into the optical lens through a light entrance side of the optical lens and emerge from the optical lens at a light exit side of the optical lens; andfor which a central longitudinal axis extending centrally through the light entrance side and centrally through the light exit side is defined definable;characterized in that the light entrance side of the optical lens and the light exit side of the optical lens are embodied in each case as a freeform surface for off-axis projection in such a way that the light beams emitted by the photodiodes arranged on a circular path around the central longitudinal axis are focused off-axis by means of the optical lens.2. The optical lens according to claim 1 , wherein the central longitudinal axis defines an axis of symmetry of the optical lens claim 1 , with respect to ...

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Номер записи: 41
28-02-2019 дата публикации

BEAM SHAPING LENS

Номер: US20190064534A1
Автор: CHOU Yen-Chun, Liu Jonathan
Принадлежит:

A beam shaping lens is disclosed. The beam shaping lens has a base on top side, a left wedge lens on bottom left of the base and a right wedge lens on bottom right of the base. Each of the wedge lens extended downwards from the base has a flat inner surface for light beams to enter and has a total internal reflection (TIR) surface for the light beams to reflect. The reflected light beams exit from a top side of the base to illuminate predetermined feature areas of a user's face especially peripheral areas in addition to the central area so that a face recognition system is able to capture features of a user's face in the feature areas. 1. A beam shaping lens , comprising:a base;a left wedge lens configured on a bottom left of the base, having a first incident surface for light beams to enter, and has a first Total Internal Reflection (TIR) surface for the light beams to reflect;a right wedge lens configured on a bottom right of the base, having a second incident surface for light beams to enter, and has a second Total Internal Reflection (TIR) surface for the light beams to reflect; whereinthe first incident surface is flat; andthe second incident surface is flat and configured opposite to the first incident surface.2. A beam shaping lens as claimed in claim 1 , further comprising:a front wedge lens configured on a bottom front of the base, having a third incident surface for light beams to enter, and has a third Total Internal Reflection (TIR) surface for the light beams to reflect;a rear wedge lens configured on a bottom rear of the base, having a fourth incident surface for light beams to enter, and has a fourth Total Internal Reflection (TIR) surface for the light beams to reflect;the third incident surface is flat; andthe fourth incident surface, configured opposite to the third incident surface, is flat.3. A beam shaping lens as claimed in claim 1 , whereinthe first incident surface is in parallel with the second incident surface.4. A beam shaping lens as ...

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Номер записи: 42
11-03-2021 дата публикации

METHOD FOR PRODUCING AN OPTICAL LENS AND OPTICAL LENS PRODUCED BY SAID METHOD

Номер: US20210069952A1
Автор: Haut Dietmar
Принадлежит: Hella GmbH & Co. KGaA

A method for producing an optical lens using an injection mold and to an optical lens produced by the method, wherein, in the method, in a first injection molding step, a first partial body is pre-injection molded in a first cavity and subsequently, in an second injection molding step, in a second cavity, a second partial body is injection molded onto the first partial body, wherein the first partial body and the second partial body are injection molded arranged in front of one another along a thickness axis of the optical lens. The method provides that the first partial body is injection molded with a thickness proportion (a) of 60% to 70% of the total thickness of the optical lens, and wherein the second partial body is injection molded with the remaining thickness proportion (b). 1. A method for producing an optical lens with an injection mold , the method comprising:pre-injecting, in a first injection molding step, a first partial body in a first cavity; andinjection molding, in a second injection molding step, in a second cavity, a second partial body onto the first partial body,wherein the first partial body and the second partial body are injection molded arranged in front of one another along a thickness axis of the lens, andwherein the first partial body is injection molded with a thickness portion of 60% to 70% of the total thickness of the optical lens and the second partial body is injection molded with the remaining thickness proportion.2. The method according to claim 1 , wherein the first partial body is injection molded with a thickness proportion of 64% to 68% of the total thickness of the optical lens.3. The method according to claim 1 , wherein a change in the cavity of the injection mold from the first cavity to the second cavity is produced by an exchangeable core insert.4. The method according to claim 1 , wherein a partial section of the cavity is formed with a molding surface having a microstructure which is reproduced on the surface of the ...

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Номер записи: 43
27-02-2020 дата публикации

METASURFACE OPTICAL SYSTEMS AND METHODS

Номер: US20200064523A1
Автор: Majhi Prashant, Parikh Kunjal, West Paul
Принадлежит: Intel Corporation

The present disclosure is directed to systems and methods useful for providing a metasurface lens formed by a plurality of multi-piece optical structures disposed on, about, or across at least a portion of the surface of substrate member. Each of the plurality of multi-piece optical structures includes a solid cylindrical core structure surrounded by a hollow cylindrical core structure such that a gap having a defined width forms between the solid cylindrical core structure and the hollow cylindrical structure surrounding the solid core. The width of the gap determines the optical performance of the metasurface lens. The multi-component optical structures forming the metasurface lens advantageously produce little or no phase shift in the electromagnetic energy passing through the metasurface lens, thereby beneficially providing an optical device having minimal or no dispersion and/or chromatic aberration. 1. An optical system , comprising:a substrate having a first surface, a thickness, and a second surface disposed transversely across the substrate thickness from the first surface; a core structure having a longitudinal axis disposed perpendicular to the first surface of the substrate; and', 'a hollow structure disposed at least partially about the core structure, the hollow structure having a longitudinal axis disposed perpendicular to the first surface of the substrate., 'a plurality of multi-piece optical structures disposed across at least a portion of the first surface of the substrate, wherein each of the plurality of multi-piece optical structures includes2. The system of :wherein the core structure comprises a solid, cylindrical, core structure; andwherein the hollow structure comprises a hollow, cylindrical, structure disposed concentrically about the core structure.3. The system of wherein the core structure comprises a material having a refractive index greater than 2.0.4. The system of wherein the hollow structure comprises a material having a ...

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Номер записи: 44
27-02-2020 дата публикации

LED PROJECTION DEVICE FOR A CAMERA AND METHOD FOR CONTROLLING A LIGHT PATTERN PROJECTED BY THE LED PROJECTION DEVICE

Номер: US20200068103A1
Автор: Huang Yuan-Tai
Принадлежит:

A light-emitting diode (LED) projection device for a camera has a substrate and at least one LED package mounted on the substrate. Each LED package includes a reflection surface, at least one LED chip disposed in the reflection surface, and a packaging lens encapsulating the at least one LED chip. By choosing a suitable amount of the LED chips that have suitable sizes and displacements and are encapsulated by suitable types of the packaging lenses, the light beams emitted from the LED chips can form a substantially rectangular light pattern that corresponds in shape to a field of view of the lens assembly. The brightness of the light pattern having better uniformity is formed and the dark area around the light pattern is reduced. The desired light pattern can be formed through simple manufacturing process and structure. 1. A light-emitting diode (LED) projection device for a camera comprising:a substrate; and a reflection surface;', 'at least one LED chip disposed in the reflection surface; and', 'a packaging lens encapsulating the at least one LED chip and attached to the reflection surface;, 'at least one LED package mounted on the substrate, and each of the at least one LED package including'}wherein the camera has a lens assembly including a circuit board, and the circuit board is parallel with the substrate; andat least one light beam that is emitted from the at least one LED chip of the LED package and passes through the packaging lens is refracted by the packaging lens and forms a non-circular light pattern.2. The LED projection device for the camera as claimed in claim 1 , wherein the packaging lens of each of the at least one LED package is symmetrical in shape.3. The LED projection device as claimed in claim 1 , wherein each of the at least one LED chip of each of the at least one LED package is disposed away from a center of the reflection surface.4. The LED projection device as claimed in claim 2 , wherein each of the at least one LED chip of each of the ...

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Номер записи: 45
14-03-2019 дата публикации

Ophthalmic Lens Doublet for Ophthalmoscopy

Номер: US20190076019A1
Автор: Farberov Arkadiy
Принадлежит:

Proposed is an ophthalmic lens doublet for indirect ophthalmoscopy. The doublet is cemented into an integral unit from two lens elements, of which is a convex-convex lens element and another is a convex-concave lens element. Both lens elements have external and internal surfaces and may be combined so that the ophthalmic lens doublet has asphericity either on one side or on both sides of the unit. The aspheric surface is characterized by asphericity Z of the following formula (1) 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled) The present invention relates to the field of ophthalmoscopy, in particular, to an ophthalmic lens doublet for indirect ophthalmoscopy used for observing the fundus and structure in the posterior chamber of a patient's eye.Ophthalmic lenses with light sources and dioptricity of 60 D and higher are known as Slit lamp lenses. Ophthalmic lenses with light sources and dioptricity of 40 D and lower are known as BIO lenses. They are used for indirect ophthalmoscopy with slit lamps or a light attached to a headband. In this case, a light source is a headlight, which is secured on the ophthalmologist's head, or a lamp that directs the light directly into the patient's eye via special mirror. The instruments that are used in the latter case are known as ophthalmoscopes.Ophthalmoscopy is a test intended for observation of the fundus of the eye and other structures of the posterior chamber of an eye. The ophthalmoscopy is an eye examination procedure performed by an oculist as a part of a routine physical examination. It is important for determining the health of the retina, optic disc, vitreous humor, etc.Prior Art section of U.S. Pat. No. 4,627,694 issued on December 1986 to David Volk describes the history of the ophthalmoscopy.Single-piece lenses for observation of the posterior part ...

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Номер записи: 46
14-03-2019 дата публикации

TRIPLET LENS METHOD OF MANUFACTURE

Номер: US20190077103A1
Автор: Brunt, JR. Harold W.
Принадлежит:

A method of forming a compound lens includes molding multiple lens elements to form a compound lens. The multiple lens elements are molded from polymers that provide each lens element with the desired optical properties. First and second lens elements formed from a first polymer can be molded around a central, third element formed from a second polymer that differs from the first polymer by the addition of a cyclic substituent group. During curing of the lens elements, cross-links are formed between the first and second polymers to form an molded, integrally formed compound lens. 1. A method of forming a compound lens comprising:providing a mold having a mold cavity corresponding to a shape of the compound lens;co-molding first and second lens elements each comprising a first polymer within the mold cavity, the first lens element being spaced apart from the second lens element; andmolding a third lens element comprising a second polymer within a portion of the mold between the first and second lens elements,wherein the third lens element adheres to each of the first and second lens elements to form an integrally molded compound lens, andwherein the second polymer differs from the first polymer by the addition of a cyclic substituent group, andwherein cross-linking between the first and second polymers occurs during curing of the third lens element between the first and second lens elements.2. The method of wherein the first polymer comprises a polydimethylsiloxane.3. The method of wherein the second polymer comprises a polydimethylsiloxane in which at least a portion of the methyl substituent groups is replaced by a cyclic substituent group including an aromatic ring or a cycloalkane ring.4. The method of wherein the first and second lenses comprise a positive lens and the third lens comprises a negative lens.5. The method of wherein the compound lens is a Hasting triplet such that the first and third lens elements are crown lens elements and the third lens element ...

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Номер записи: 47
31-03-2022 дата публикации

9 Million Pixel Black Light Full-color Lens

Номер: US20220099926A1
Автор: Guo Shaoqin, Huang Muwang, Lin Yongjie, Liu Jianfang, WEN XIAOFENG
Принадлежит:

The invention relates to a 9 million pixel black light full-color lens comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a diaphragm, a seventh lens, an eighth lens, a ninth lens, a tenth lens, an eleventh lens and an equivalent prism which are sequentially arranged from front to back along a light incident direction. The invention overcomes the poor resolution with visible light and infrared light, large chromatic aberration in imaging magnification and the like of the existing black light full-color lens, improves imaging effect (i.e. resolution) with visible light and infrared bands by adopting a structure of eleven spherical lenses, cooperated with the equivalent prism, simultaneously adopting a wide-spectrum optimization design for lenses, and provides a high-resolution video stream for image fusion, consequently a bright and colored image is output in a low illumination environment is obtained. 112345613789101112. A 9 million pixel black light full-color lens , characterized by comprising a first lens () , a second lens () , a third lens () , a fourth lens () , a fifth lens () , a sixth lens () , a diaphragm () , a seventh lens () , an eighth lens () , a ninth lens () , a tenth lens () , an eleventh lens () and an equivalent prism () which are sequentially arranged from front to back along a light incident direction ,{'b': ['1', '2', '3', '4', '3', '4', '5', '6', '5', '6', '7', '8', '7', '8', '9', '10', '11', '10', '11', '12'], '#text': 'wherein the first lens () is a meniscus spherical lens, the second lens () is a plano-concave spherical lens, the third lens () is a biconcave spherical lens, the fourth lens () is a biconvex spherical lens, the third lens () and the fourth lens () form a closely-connected gluing group, the fifth lens () is a plano-convex spherical lens, the sixth lens () is a meniscus spherical lens, the fifth lens () and the sixth lens () form a closely-connected gluing group, the seventh lens ...

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Номер записи: 48
31-03-2022 дата публикации

Optical imaging system

Номер: US20220099943A1
Автор: Il Yong Park, In Do SEO, Yong Joo Jo
Принадлежит: Samsung Electro Mechanics Co Ltd

An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens disposed sequentially from an object side The first lens and the second lens each have a positive refractive power, and the third lens has a negative refractive power, and D12/D_MAX<0.15 is satisfied, where D12 is a distance on an optical axis between an image-side surface of the first lens and an object-side surface of the second lens, and D_MAX is a greatest distance among distances between neighboring lenses.

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Номер записи: 49
31-03-2022 дата публикации

Optoelectronic device with micrometric or nanometric light-emitting diode on which an optical lens is mounted

Номер: US20220102598A1
Автор: Frederic Mayer, Olivier Jeannin
Принадлежит: Aledia

An optoelectronic device includes at least one light-emitting diode having a three-dimensional shape having a height along a longitudinal axis and having a first longitudinal dimension measured along the longitudinal axis and at least a second transverse dimension corresponding to a dimension of the three-dimensional shape measured perpendicular to the longitudinal axis. The first longitudinal dimension and the second transverse dimension are each less than or equal to substantially 20 μm. The optoelectronic device has at least one optical lens capable of transforming the light rays emitted by the light-emitting diode which pass through the optical lens.

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Номер записи: 50
21-03-2019 дата публикации

GRADIENT INDEX (GRIN) SPOKE LENS AND METHOD OF OPERATION

Номер: US20190086581A1
Автор: DIEHL Colin Anthony Minor, Thacker Corey McKinney
Принадлежит:

An apparatus includes a center portion and a plurality of spoke portions that are in contact with the center portion and that extend to a perimeter region. The plurality of spoke portions include at least a first monolithic spoke portion extending from the center portion to the perimeter region, and the center portion and the plurality of spoke portions define a plurality of cavity regions among the plurality of spoke portions. The center portion, the plurality of spoke portions, and the plurality of cavity regions are included in a gradient index (GRIN) lens having a plurality of effective dielectric constants that are based on a radial distance from the center portion. 1. An apparatus comprising:a center portion; anda plurality of spoke portions that are in contact with the center portion and that extend to a perimeter region, the plurality of spoke portions including at least a first monolithic spoke portion extending from the center portion to the perimeter region,wherein the center portion and the plurality of spoke portions define a plurality of cavity regions among the plurality of spoke portions, andwherein the center portion, the plurality of spoke portions, and the plurality of cavity regions are included in a gradient index (GRIN) lens having a plurality of effective dielectric constants that are based on a radial distance from the center portion.2. The apparatus of claim 1 , further comprising an outer ring structure coupled to the plurality of spoke portions and defining the perimeter region.3. The apparatus of claim 1 , wherein each spoke portion of the plurality of spoke portions has a tapered profile.4. The apparatus of claim 3 , wherein a width of the first monolithic spoke portion varies based on the radial distance to form the tapered profile.5. The apparatus of claim 1 , wherein a number of the plurality of spoke portions is related to a frequency associated with the GRIN lens.6. The apparatus of claim 1 , wherein the plurality of effective ...

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Номер записи: 51
26-06-2014 дата публикации

Zoom lens and photographing apparatus having the same

Номер: US20140176778A1
Автор: Yong-Wook Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A zoom lens and a photographing apparatus having the zoom lens are provided. The zoom lens includes: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group including a shutter and having a positive refractive power; a fourth lens group having a positive refractive power, a fifth lens group having a negative refractive power, and a sixth lens group having a positive refractive power, wherein the first, second, third, fourth, fifth, and sixth are arranged from an object side toward an image side, and when the zoom lens zooms from a wide angle position to a telephoto position, the third lens group is fixed, and the first, second, fourth, fifth, and sixth lens groups are moved.

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Номер записи: 52
01-04-2021 дата публикации

Alignment system

Номер: US20210097276A1
Автор: Adam R. Heintzelman, Joseph A. DeGroot, Joshua D. LINTZ
Принадлежит: Gentex Corp

An alignment system may comprise a housing defining a channel having a first end and a second end; a light source disposed at the first end of the channel; and an alignment image disposed at the second end of the channel. The light source may be in optical communication with the alignment image. The alignment system may further comprise a baffle extending around at least a portion of an inner perimeter of the channel, the baffle defining a backlight aperture. The light source may be in selective optical communication with the alignment image.

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Номер записи: 53
19-03-2020 дата публикации

WIRELESS POWER TRANSMISSION DEVICE AND METHOD

Номер: US20200091774A1
Автор: KIM Kyunghwan, Lee Seonghun, YOUN Jinho
Принадлежит: LG ELECTRONICS INC.

The present specification discloses a wireless power transmission device and method thereof. Here, the wireless power transmission device according to an embodiment of the present invention includes: a laser light source unit; a light output unit which emits laser light generated from the laser light source to a light receiving unit of the wireless power receiving device; and a control unit which controls shaping of the emitted light according to the angle of arrival with the light receiving unit so that an overfill loss is less than a predetermined threshold value. Here, the control unit detects the point at which the power conversion efficiency of the light receiving unit is highest, and sets and controls the power density value of the emitted light at the detected point. 1. A wireless power transmission apparatus , comprising:a laser light source unit;a light output unit configured to emit laser light generated by the laser light source unit to a light receiving unit of a wireless power reception apparatus; anda control unit configured to control shaping of the emitted light based on an angle of arrival at the light receiving unit such that overfill loss becomes smaller than a predetermined threshold.2. The wireless power transmission apparatus of claim 1 , wherein the control unit is configured to:detect a point at which power conversion efficiency of the light receiving unit is maximized; andconfigure and control a power density value of the emitted light at the detected point.3. The wireless power transmission apparatus of claim 1 , wherein the control unit is configured to:{'sub': 'rep', 'extract a value of Pfrom data received from the wireless power reception apparatus;'}{'sub': rep', 'rep′', 'rep', 'rep′, 'determine whether the extracted value of Pis smaller than a value obtained by subtracting ΔP from P (P Подробнее

Номер записи: 54
12-05-2022 дата публикации

RECEIVING OPTICAL SYSTEM, LASER RECEIVING MODULE, LIDAR, AND OPTICAL ADJUSTMENT METHOD

Номер: US20220146635A1
Автор: WEI Wei
Принадлежит: SUTENG INNOVATION TECHNOLOGY CO., LTD.

This application pertains to the technical field of LiDAR, and discloses a receiving optical system, a laser receiving module, a LiDAR, and an optical adjustment method. The receiving optical system includes an optical receiving module and a first cylindrical lens. The optical receiving module is configured to receive a reflected laser and focus the received reflected laser. The first cylindrical lens is configured to receive the focused reflected laser and adjust the reflected laser in a first direction. Therefore, the receiving optical system can better perform matching on the photosensitive surface of the receiving sensor, and the energy receiving efficiency of the system is relatively high. 1. A receiving optical system , comprising:an optical receiving module and a first cylindrical lens,wherein the optical receiving module is configured to receive a reflected laser and focus the received reflected laser, andwherein the first cylindrical lens is configured to receive the focused reflected laser and adjust the reflected laser in a first direction.2. The receiving optical system according to claim 1 , wherein the optical receiving module comprises:a first receiving lens and a second receiving lens,wherein the first receiving lens is configured to focus the received reflected laser, and switch the reflected laser from a first beam diameter to a second beam diameter, andwherein the second receiving lens is configured to receive the reflected laser switched to the second beam diameter, switch the reflected laser to a third beam diameter, and emit the reflected laser of the third beam diameter toward the first cylindrical lens.3. The receiving optical system according to claim 2 , wherein the first receiving lens is a convex spherical lens claim 2 , and the second receiving lens is a concave spherical lens.4. The receiving optical system according to claim 3 , wherein the concave spherical lens and the first cylindrical lens are integrated claim 3 , and a surface of ...

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Номер записи: 55
12-05-2022 дата публикации

OPTICAL IMAGING SYSTEM COMPRISING COMPOSITE LENS SURFACE AND IMAGING DEVICE COMPRISING THE SAME, AND METHOD OF DESIGNING COMPOSITE LENS SURFACE

Номер: US20220146791A1
Автор: CHOI Byoung Suk, CHOI Won Young, KIM Yeong Hyeon, Mun Junho
Принадлежит: CoAsia Optics Corp.

An optical imaging system includes one or more lens surfaces divided into a plurality of areas, wherein adjacent areas among the plurality of areas are surfaces expressed by different equations, and light passing through each of the plurality of areas may be imaged on the image surface of the same image sensor. According to the disclosure, it is possible to form a composite lens surface by composing different shapes of curved surfaces on a lens surface constituting an optical imaging system and increase a design freedom of the optical imaging system. Further, it is possible to significantly improve optical characteristics of the optical imaging system, such as increasing the definition of image or the MTF property and the like. By applying plurality of such divided surface areas, it is also possible to optimize, synthesize, or manipulate the optical characteristics of the optical imaging system relevant to each interested field area. 1. An optical imaging system comprising one or more lens surfaces divided into a plurality of areas ,wherein adjacent areas among the plurality of areas are surfaces expressed by different equations, andlight passing through each of the plurality of areas is imaged on the image surface of the same image sensor.2. The optical imaging system of claim 1 , wherein the adjacent areas among the plurality of areas are aspherical or spherical surfaces expressed by different equations.3. The optical imaging system of claim 1 , wherein the adjacent areas among the plurality of areas have the same sag height of the lens surface or the same slope on the boundary.4. The optical imaging system of claim 1 , wherein the plurality of areas are one of a rotationally symmetric surface claim 1 , a non-rotationally symmetric surface claim 1 , and a freeform surface claim 1 , respectively.5. The optical imaging system of claim 1 , wherein the plurality of areas is formed on the last lens surface of the optical system.7. The optical imaging system of claim 1 ...

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Номер записи: 56
12-05-2022 дата публикации

LIGHT FIELD DISPLAY SYSTEM

Номер: US20220146853A1
Автор: GAO JIAN, Hong Tao, ZHU Wenji
Принадлежит:

The present disclosure relates to a light field display system including: a plurality of light field display modules spliced at an angle, wherein each of the light field display modules includes a display screen and a micro-lens array located on a light-emitting side of the display screen; a lens group, including a plurality of spliced lenses corresponding to the plurality of light field display modules on a one-to-one basis, wherein the lens group is located on a side, away from the display screen, of the micro-lens array and configured to form a plurality of first imaging faces corresponding to the plurality of light field display modules on a one-to-one basis on one side, away from the micro-lens array, of the display screen, and the plurality of first imaging faces are seamlessly spliced to form a plurality of second imaging faces seamlessly spliced on a side, away from the light field display module, of the plurality of first imaging faces, wherein the first imaging face is configured to display an upright virtual image of the corresponding light field display module. 1. A light field display system comprising:a plurality of light field display modules spliced at an angle, wherein each of the light field display modules comprises a display screen and a micro-lens array located on a light-emitting side of the display screen; anda lens group, comprising a plurality of spliced lenses corresponding to the plurality of light field display modules on a one-to-one basis, wherein the lens group is located on a side, away from the display screen, of the micro-lens array, and configured to form a plurality of first imaging faces corresponding to the plurality of light field display modules on one-to-one basis on the side, away from the micro-lens array, of the display screen, the plurality of first imaging faces are seamlessly spliced to form a plurality of second imaging faces seamlessly spliced on a side, away from the light field display module, of the plurality of ...

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Номер записи: 57
26-03-2020 дата публикации

Electronic Device With A Tunable Lens

Номер: US20200096770A1
Автор: Chan Victoria C., Chen Cheng, DORJGOTOV EnkhAmgalan, Hazra Siddharth S., HORIE Yu, Li Yuan, LV Peng, Myhre Graham B., Pedder James E., Stamenov Igor, Wen Xiaonan
Принадлежит:

A lens module in a head-mounted device may include a fluid-filled chamber, a semi-rigid lens element that at least partially defines the fluid-filled chamber, and at least one actuator configured to selectively bend the semi-rigid lens element. The semi-rigid lens element may become rigid along a first axis when the lens element is curved along a second axis perpendicular to the first axis. Six actuators that are evenly distributed around the periphery of the semi-rigid lens element may be used to control the curvature of the semi-rigid lens element. The semi-rigid lens element may initially be planar or non-planar. For example, the semi-rigid lens element may initially have a spherically convex surface and a spherically concave surface. A tunable spherical lens may be incorporated into the lens module to offset a parasitic spherical lens power from the semi-rigid lens element. 1. A system , comprising:a head-mounted support structure;a display that emits light;a lens module supported by the head-mounted support structure that receives the light from the display, wherein the lens module comprises first and second fluid-filled chambers and first and second flexible membranes; andcontrol circuitry configured to control the lens module to adjust curvature of the first flexible membrane and curvature of the second flexible membrane.2. The system defined in claim 1 , wherein the control circuitry is configured to control a first amount of fluid in the first fluid-filled chamber and a second amount of fluid in the second fluid-filled chamber to adjust the curvature of the first flexible membrane and the curvature the second flexible membrane.3. The system defined in claim 1 , wherein the first flexible membrane has a first varying stiffness profile and the second flexible membrane has a second varying stiffness profile that is different than the first varying stiffness profile.4. The system defined in claim 1 , wherein the first flexible membrane has a varying thickness.5 ...

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Номер записи: 58
08-04-2021 дата публикации

ABERRATION CORRECTORS BASED ON DISPERSION-ENGINEERED METASURFACES

Номер: US20210103141A1
Автор: Capasso Federico, CHEN Wei-Ting, SISLER Jared F.G., ZHU Alexander Yutong
Принадлежит: President and Fellows of Harvard College

An optical device for aberration correction (e.g., chromatic aberration correction) is disclosed. The optical device includes an optical component (e.g., a spherical lens) and a metasurface optically coupled to the optical component. The metasurface includes a plurality of nanostructures that define a phase profile. The phase profile corrects an aberration (e.g., chromatic aberration) caused by the optical component. The resulting optical device becomes diffraction-limited (e.g., for the visible spectrum) with the metasurface. 1. An optical device for aberration correction , comprising:an optical component; anda metasurface optically coupled to the optical component, the metasurface including a plurality of nanostructures that define a phase profile, wherein the phase profile corrects one or more aberrations of the optical component.2. The optical device of claim 1 , wherein the aberrations include one or more monochromatic aberrations and chromatic aberration.3. The optical device of claim 1 , wherein the one or more monochromatic aberrations include spherical aberration claim 1 , coma claim 1 , astigmatism claim 1 , distortion claim 1 , or field curvature.4. The optical device of claim 1 , wherein the nanostructures include nano-pillars.5. The optical device of claim 4 , wherein a cross-section of the nano-pillars is circular claim 4 , rectangular claim 4 , elliptical or square claim 4 , and the nano-pillars include at least one lossless material in a visible spectrum.6. The optical device of claim 5 , wherein the at least one lossless material includes TiO claim 5 , GaN claim 5 , SiN claim 5 , SiO claim 5 , MgF claim 5 , or LiF.7. The optical device of claim 1 , wherein the optical component is a spherical lens claim 1 , and the metasurface is attached or separated by an air gap to a planar surface of the spherical lens.8. The optical device of claim 1 , wherein the phase profile of the metasurface is a spatially-dependent and frequency-dependent phase profile.9. ...

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Номер записи: 59
29-04-2021 дата публикации

LENS ASSEMBLY AND PORTABLE ELECTRONIC DEVICE

Номер: US20210124093A1
Автор: CHOI Tae Su, PARK Ju Sung, SEO Sot Eum, YANG Dong Shin
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A lens assembly includes a lens including an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion, a blocking member disposed in front of the lens and having an opening to allow light to be incident on the lens, and a lens barrel accommodating the lens. The optical portion is noncircular and a portion of the blocking member facing the optical portion in an optical axis direction is located to be higher than a portion of the blocking member facing the flange portion in the optical axis direction. 1. A lens assembly comprising:a lens comprising an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion;a blocking member disposed in front of the lens and comprising an opening to allow light to be incident on the lens; anda lens barrel accommodating the lens,wherein the optical portion is noncircular, andwherein a portion of the blocking member, facing the optical portion in an optical axis direction, is located to be higher than a portion of the blocking member, facing the flange portion in the optical axis direction.2. The lens assembly of claim 1 , wherein the blocking member is in contact with the flange portion and is not in contact with the optical portion.3. The lens assembly of claim 1 , wherein the portion of the blocking member facing the optical portion in the optical axis direction claim 1 , comprises an arc shape.4. The lens assembly of claim 1 , wherein the optical portion comprises a first edge and a second edge having an arc shape when viewed in the optical axis direction claim 1 , and a third edge and a fourth edge claim 1 , connecting the first edge and the second edge to each other.5. The lens assembly of claim 4 , wherein the flange portion extends from the first edge and the second edge.6. The lens assembly of claim 4 , wherein boundaries between the third and fourth edges and the blocking member are located to be ...

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Номер записи: 60
02-04-2020 дата публикации

MULTI-FOCAL COLLIMATING LENS AND HEADLIGHT ASSEMBLY FOR AN AUTOMOTIVE LOW BEAM

Номер: US20200103564A1
Автор: Cao Yiyu, Hsu Hui-Kai, LU Kang, Wu Ping
Принадлежит:

The embodiments of the invention provide a multi-focal collimating lens and a headlight assembly for an automotive low beam. The multi-focal collimating lens includes a central collimating lens portion and two total internal reflection lens portions arranged on a left side and a right side of the central collimating lens portion. The central collimating lens portion and the total internal reflection lens portions share two focal points symmetrically located on both sides of a vertical symmetry plane of the multi-focal collimating lens. An upper edge and a lower edge of the multi-focal collimating lens are formed based on the two focal points, so that the headlight assembly is able to generate a cut-off line of the automotive low beam in a far-field light pattern of the multi-focal collimating lens. 1. A multi-focal collimating lens for a headlight assembly for an automotive low beam , the multi-focal collimating lens comprising , with the relative positions referring to the mounting position of the multi-focal collimating lens within the headlight assembly:a central collimating lens portion and two total internal reflection lens portions arranged on a left side and a right side of the central collimating lens portion;wherein the central collimating lens portion and the total internal reflection lens portions share two focal points symmetrically located on both sides of a vertical symmetry plane of the multi-focal collimating lens;and wherein an upper edge and a lower edge of the multi-focal collimating lens are formed based on the two focal points, so that the headlight assembly is able to generate a cut-off line of the automotive low beam in a far-field light pattern of the multi-focal collimating lens.2. The multi-focal collimating lens according to claim 1 , wherein the two focal points are located on a horizontal bisection plane of the multi-focal collimating lens.3. The multi-focal collimating lens according to claim 1 , wherein a light incident surface of the ...

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Номер записи: 61
26-04-2018 дата публикации

MICRO-OPTICAL DEVICE DOUBLE-SIDED IMAGING, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

Номер: US20180111405A1
Автор: Dong Lanxin, Xu Liangheng, You Renshun, ZHUANG Xiaolei
Принадлежит:

A micro-optical device for double-sided imaging, a preparation method therefor and an application thereof. The micro-optical device for double-sided imaging comprises a first microlens layer (), a functional layer (), a second microlens layer () and a miniature graphic layer () which are mutually compounded in sequence, the first microlens layer () being a first microlens array formed by arranging a plurality of first microlenses (), and the second microlens layer () being a second microlens array formed by arranging a plurality of second microlenses (); and the functional layer () is arranged on the surface of the second microlens layer (), and a material for the functional layer () has a refractive index different from that of a surrounding material. The micro-optical device can image on two faces; and after products prepared by adopting the device are used for packaging and anti-counterfeiting of bills, stereoscopic images can be represented on front sides and back sides, and representation forms of the two stereoscopic images are different, thereby greatly enhancing attraction and anti-copying capability of the products. 11423. A micro-optical device for double-sided imaging , characterized in that it comprises a first microlens layer () , a functional layer () , a second microlens layer () and a miniature graphic layer () which are mutually compounded in sequence;{'b': 1', '11, 'the first microlens layer () is a first microlens array formed by arranging a plurality of first microlenses ();'}{'b': 2', '21, 'the second microlens layer () is a second microlens array formed by arranging a plurality of second microlenses ();'}{'b': '2', 'the functional layer is arranged on the surface of the second microlens layer (), and a material for the functional layer has a refractive index greater than that of a surrounding material.'}2111221. The micro-optical device for double-sided imaging according to claim 1 , characterized in that the first microlens layer () is a first ...

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Номер записи: 62
09-04-2020 дата публикации

HEAD-MOUNTED DISPLAY

Номер: US20200110198A1
Автор: DENG Qing-Long
Принадлежит:

A head-mounted display includes an optical component. The optical component includes a plurality of micro lenses and a central lens. The micro lenses are connected to each other. The central lens is connected among and surrounded by the micro lenses. The central lens and the micro lenses are substantially arranged along a plane. 1. A head-mounted display , comprising an optical component which comprises:a plurality of micro lenses connected to each other; anda central lens connected among and surrounded by the micro lenses, wherein the central lens and the micro lenses are substantially arranged along a plane.2. The head-mounted display of claim 1 , wherein the central lens and the micro lenses of the optical component form a unitary lens structure.3. The head-mounted display of claim 1 , wherein a lateral length of the central lens is greater than a lateral length of any of the micro lenses claim 1 , and the lateral lengths are measured along one dimension of the plane.4. The head-mounted display of claim 3 , wherein the lateral length of the central lens is about 4 to 50 times the lateral length of any of the micro lenses.5. The head-mounted display of claim 1 , wherein a shape of a peripheral edge of the central lens is substantially circular.6. The head-mounted display of claim 1 , wherein a shape of a peripheral edge of one of the micro lenses is at least a part of a hexagon.7. The head-mounted display of claim 1 , further comprising a display panel having a display surface facing the optical component.8. The head-mounted display of claim 7 , wherein the display surface comprises a central display region and a peripheral display region surrounding the central display region claim 7 , and the central lens has an optical axis passing through the central display region.9. The head-mounted display of claim 8 , wherein the display panel is configured to display a central image at the central display region and a plurality of light field images at the peripheral ...

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Номер записи: 63
27-05-2021 дата публикации

Optical system for facilitating plant growth

Номер: US20210153439A1
Автор: Liangliang Cao, Qian Zhang
Принадлежит: Verdant Lighting Technology Inc

Optical system for facilitating plant growth is provided. The optical system can produce a light beam having a full width at half-maximum (FWHM) angle of greater than 120 degrees in one or more transverse directions, wherein the transverse direction is perpendicular to the optical axis of the light beam.

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Номер записи: 64
27-05-2021 дата публикации

Guidewire And Catheter System For In-Vivo Forward Viewing Of The Vasculature

Номер: US20210153725A1
Автор: Hayes John Michael, Mooney Ivan
Принадлежит:

A medical system comprising a guidewire that is connectable to a catheter is described. The guidewire has a housing connected to the distal end of a core wire. A printed circuit board (PCB) electrically connected to a camera chip resides in the housing. An atraumatic lens is supported by the housing with the camera chip residing between the atraumatic lens and the housing so that light rays entering the atraumatic lens are refracted to a focal plane aligned along a distal face of the camera chip. A proximal connector powered by a controller is wired to a visual display. With the proximal end of the guidewire connected to the proximal connector, the controller provides electrical power to the camera chip via a power cable extending along the core wire to the PCB. The catheter has an axially-extending primary lumen and a plurality of optical fibers extending to respective light-emitting lenses. During a medical procedure, the guidewire is first inserted into the vasculature of a patient. The guidewire is then received in the primary lumen of the catheter to connect the catheter to the guidewire. Then, the guidewire is connected to the proximal connector to enable the controller to provide electrical power to the camera chip. This provides the surgeon with a visual image of the vasculature illuminated by the light-emitting lenses of the catheter during the medical procedure. 1. A guidewire , comprising:a) a core wire extending along a longitudinal axis from a core wire proximal end to a core wire distal portion having a core wire distal end;b) a housing connected to the core wire distal end;c) a printed circuit board (PCB) electrically connected to a camera chip, wherein the PCB is connected to the housing;d) a power cable extending along the core wire to the PCB to thereby provide electrical power to the camera chip; ande) an atraumatic lens supported by the housing, wherein the camera chip resides between the atraumatic lens and the housing so that light rays ...

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Номер записи: 65
25-08-2022 дата публикации

Light diffusing lens with square irradiation distribution

Номер: US20220268969A1
Автор: Jae Yu JUNG, Kang Hyun Lee, Seok Chae KO
Принадлежит: Hl Optics Co Ltd

Disclosed is a light diffusing lens installed to cover an LED package mounted on a substrate, including a bottom surface which is an ellipse having a semi major axis and a semi minor axis, and a top surface which has a dome-shaped structure, wherein a Z segment function f(a) of the top surface line segment in a diagonal radius direction between the semi major axis and the semi minor axis is specified.

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Номер записи: 66
25-08-2022 дата публикации

Lens assembly and electronic apparatus including the same

Номер: US20220269048A1
Автор: Haneung KIM, Hwanseon LEE
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A lens assembly and an electronic apparatus having the lens assembly are disclosed. The disclosed lens assembly includes a plurality of lenses arranged from an object side to an image side, the image side being where an image sensor is located, and includes a first lens group having negative refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power. During zooming, the second lens group and the third lens group move to the object side, and the third lens group performs focusing. In addition, various other embodiments are possible.

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Номер записи: 67
16-04-2020 дата публикации

METALENS, METHOD FOR MAKING SAME, AND OPTICAL DEVICE USING SAME

Номер: US20200116900A1
Автор: Chiu Chi-Feng, TSAI MING-HUNG
Принадлежит:

A metalens of greatly reduced depth includes a lens body and many columnar microstructures. The lens body includes first and second surfaces. The columnar microstructures are formed on the first surface and spaced apart from each other. Each columnar microstructure has a particular shape and extends in a direction away from the first surface to a height of 500 nm to 1500 nm. The present disclosure also provides a method for making the above metalens and an optical element using the metalens. 1. A metalens , comprising:a lens body, wherein the lens body comprising a first surface and a second surface opposite to each other;a plurality of columnar microstructures; wherein the plurality of columnar microstructures are formed on the first surface and spaced apart from each other;wherein each of the plurality of columnar microstructures has a columnar shape and extends in a direction away from the first surface to a height of 500 nm to 1500 nm.2. The metalens of claim 1 , wherein each of the plurality of columnar microstructure has a length of 20 nm to 200 nm along a first direction claim 1 , each of the plurality of columnar microstructure has a width of 20 nm to 200 nm along a second direction;the first direction is orthogonal to the second direction; andthe first direction and the second direction are both parallel to the first surface.3. The metalens of claim 1 , wherein the plurality of columnar microstructures are arranged evenly in a pattern.4. The metalens of claim 3 , wherein the plurality of columnar microstructures are arranged in one of an L-shape claim 3 , a T-shape or an I-shape.5. The metalens of claim 1 , wherein the second surface of the lens body is a light incident surface;a side of the metalens provided with the plurality of columnar microstructures is a light exiting side.6. A optical device claim 1 , comprising:light source adapted to emitting lightmetalens, wherein the metalens is spaced apart from the light source and located on a path which the ...

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Номер записи: 68
16-04-2020 дата публикации

IMAGE FORMING APPARATUS

Номер: US20200117110A1
Автор: Ikeda Kazuki, Inagaki Yoshihiro, Kobayashi Daisuke, Nurnabila Mohdmakhtar, Ooki Makoto
Принадлежит:

An image forming apparatus includes a photoconductor, a light emitting substrate, and imaging optical systems, wherein an optical axis of the imaging optical systems are parallel, imaging magnifications of the imaging optical systems are substantially equal for the light emitting point groups, the imaging optical systems includes a first lens array, a second lens array, and apertures, central points of the light emitting point group exist in a first plane, central points of the imaging lenses exist in a second plane, central points of the apertures exist in a third plane, central points of the imaging lenses exist in a fourth plane, the first plane forms a non-zero predetermined angle with respect to a plane perpendicular to an optical axis direction, and the angle formed with respect to the plane perpendicular to the optical axis direction is greater in the order of the first, second, third, and the fourth plane. 1. An image forming apparatus comprising:a photoconductor having a surface conveyed in a sub direction substantially orthogonal to a main direction;a light emitting substrate having a plurality of two-dimensionally arrayed light emitting point groups; anda plurality of imaging optical systems that images light from the plurality of light emitting point groups onto mutually different positions on the photoconductor,wherein an optical axis of each of the plurality of imaging optical systems are parallel to one another,imaging magnifications of the plurality of imaging optical systems are substantially equal for each of the light emitting point groups,the plurality of imaging optical systems includes: a first lens array having a plurality of imaging lenses arranged to face the light emitting point groups; a second lens array having a plurality of imaging lenses each arranged to face each of the plurality of imaging lenses constituting the first lens array; and a plurality of apertures arranged between the first and second lens arrays so as to face the ...

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Номер записи: 69
27-05-2021 дата публикации

RANGING DEVICE AND RANGING MODULE

Номер: US20210156965A1
Автор: Kikuchi Ken, Morita Hiroshi, OHTORII Hiizu, Otani Eiji, OYAMA YUSUKE
Принадлежит:

The present disclosure relates to a ranging device and a ranging module that allow a light emitting element and a light receiving element to be integrated with a simple structure. A light emitting substrate having a light emitting element is connected to a circuit substrate through first bumps, and a light receiving substrate having a single light emitting element or light emitting elements that are two-dimensionally disposed is connected to the circuit substrate through second bumps. The optical axis of a lens, the optical axis of the light emitting element, and the center axis of the light receiving element are disposed on substantially the same axis. The present technique can be applied to a ranging device that carries out ranging, and so forth. 1. A ranging device comprising:a lens;a circuit substrate;a light emitting substrate having a light emitting element; anda light receiving substrate having a single light receiving element or light receiving elements that are two-dimensionally disposed, whereinthe light emitting substrate is connected to the circuit substrate through first bumps,the light receiving substrate is connected to the circuit substrate through second bumps, andan optical axis of the lens, an optical axis of the light emitting element, and a center axis of the light receiving element are disposed on substantially a same axis.2. The ranging device according to claim 1 , whereinthe circuit substrate, the light emitting substrate, and the light receiving substrate are disposed in order of the circuit substrate, the light emitting substrate, and the light receiving substrate with respect to the lens, anda light reception area of the light receiving element is larger than a light emission area of the light emitting element.3. The ranging device according to claim 1 , whereinthe circuit substrate has a first opening part between the light emitting element and the lens.4. The ranging device according to claim 1 , whereinthe circuit substrate has a ...

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Номер записи: 70
27-05-2021 дата публикации

LENS DESIGN AND METHODS OF MANUFACTURE THEREOF

Номер: US20210157034A1
Автор: Babala Michael, Blake, III Thomas E., Warmuth Matthew
Принадлежит:

Disclosed herein is a lens comprising a central portion that comprises a first polymer; and a peripheral portion that comprises a second polymer; where the peripheral portion surrounds the central portion; and where the peripheral portion has a skeletal density that is greater than its bulk density. Disclosed herein too is a method of manufacturing a lens comprising injecting into a mold a molten polymer to produce the lens; where the lens comprises a central portion; and a peripheral portion; where the peripheral portion surrounds the central portion; and where the peripheral portion has a skeletal density that is greater than its bulk density. 1. A lens comprising:a central portion that comprises a first polymer; anda peripheral portion that comprises a second polymer; where the peripheral portion surrounds the central portion; and where the peripheral portion has a skeletal density that is greater than its bulk density.2. The lens of claim 1 , where the peripheral portion has a composite coefficient of thermal expansion that is lower than the coefficient of thermal expansion of the central portion.3. The lens of claim 1 , where the first polymer is the same as the second polymer.4. The lens of claim 1 , where the first polymer is different from the second polymer.5. The lens of claim 1 , where the peripheral portion comprises cavities.6. The lens of claim 5 , where the cavities are uniformly distributed throughout the peripheral portion.7. The lens of claim 1 , where the peripheral portion comprises a foam.8. The lens of claim 1 , where the central portion extends to the peripheral portion and where opposing faces of the peripheral portion are parallel to each other.9. The lens of claim 1 , where a curved surface of the central portion encompasses the peripheral portion and wherein the peripheral portion of the lens does not have parallel surfaces.10. The lens of claim 5 , where the cavities have cross-sectional geometries viewed in a plane parallel to the paper ...

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Номер записи: 71
10-05-2018 дата публикации

Optical apparatus

Номер: US20180129012A1
Автор: Yuki Nagao
Принадлежит: Canon Inc

An optical apparatus includes an optical element, and an attached member to which the optical element is attached. The optical element and the attached member are adhered to each other by an adhesive while the optical element and the attached member contact each other. The optical element includes a flange part that projects from an outer peripheral surface to an outer periphery direction. The adhesive is adhered so as to cover the flange part in an adhesion area where the optical element and the attached member are applied to each other by the adhesive.

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Номер записи: 72
19-05-2016 дата публикации

Monocentric Lens-based Multi-scale Optical Systems and Methods of Use

Номер: US20160142646A1
Автор: Brady David Jones, Marks Daniel
Принадлежит:

A monocentric lens-based multi-scale imaging system is disclosed. Embodiments of the present invention comprise a monocentric lens as an objective lens that collects light from a scene. Monocentric lenses in accordance with the present invention include a spherical central lens element and a plurality of lens shell sections that collectively reduce at least one of spherical and chromatic aberration from the magnitude introduced by the spherical lens element itself. A plurality of secondary lenses image the scene through the objective lens and further reduce the magnitude of aberrations introduced by the objective lens. A plurality of sensor arrays converts optical sub-images of the scene into a plurality of digital images, which can then be used to form a composite image of the scene. 137-. (canceled)38. An optical system for providing an image of a scene , the optical system comprising:a first lens that is monocentric about a first position, the first lens operative for forming an intermediate image of the scene at an image field;a plurality of second lenses, each second lens of the plurality thereof having a unique optical axis that intersects the first position, wherein at least one of the plurality of second lenses is operative for reducing the magnitude of a first aberration; anda plurality of sensor arrays, each sensor array of the plurality thereof comprising a plurality of sensor elements;wherein the first lens, the plurality of sensor arrays, and the plurality of second lenses are arranged such that each second lens of the plurality thereof relays a portion of the intermediate image as an optical sub-image at a different one of the plurality of sensor arrays.39. The optical system of wherein the first lens is provided such that the first aberration is selected from the group consisting of spherical aberration and chromatic aberration.40. The optical system of wherein the first lens comprises:a first lens element that is spherical about the first position, ...

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Номер записи: 73
18-05-2017 дата публикации

Optical image capturing system

Номер: US20170139186A1
Автор: Nai-Yuan Tang, Yeong-Ming Chang
Принадлежит: Ability Opto Electronics Technology Co Ltd

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.

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Номер записи: 74
09-05-2019 дата публикации

HYDROXIDE-CATALYSIS BONDING OF OPTICAL COMPONENTS USED IN DUV OPTICAL SYSTEMS

Номер: US20190137656A1
Автор: Dunn Michael Morgan, McMichael Todd Robert, Michaloski Paul Francis, Westcott Mark Ranney
Принадлежит:

A compound lens assembly and method for making a compound lens assembly useful for deep ultraviolet lithography are described. The compound lens assembly includes a first lens component having an optical surface bonded to an optical surface of a second lens component. The bonding at the interface can be achieved using a hydroxide catalysis bonding technique. The compound lens assembly and process for making same solve problems relating to constringence and/or inherent birefringence known for conventional optical elements used in deep ultraviolet lithography or inspection of wafers or reticles in the DUV. 1. A lens assembly with an optical axis , comprising:{'sub': 'n', 'a first optical component, the first optical component having a first optical surface and comprising a metal halide MX; and'}{'sub': 'm', 'a second optical component having a second optical surface forming an interface with the first optical surface of the first optical component, the interface including a covalent bond between the first optical surface and the second optical surface, the second optical component comprising a metal halide M′X′or a silica-containing material;'}{'sub': 'm', 'wherein when the second optical component comprises M′X′, the covalent bond includes a M-O-M′ bridge; and'}wherein when the second optical component comprises a silica-containing material, the covalent bond includes a M-O—Si bridge.2. The lens assembly of claim 1 , wherein the second optical component is made of a metal halide M′X′and the interfacing first and second optical surfaces are bonded by an M-O-M′ bridge.3. The lens assembly of claim 2 , wherein the interfacing first and second optical surfaces are spherical or plano surfaces configured with <111> planes normal to the optical axis of the assembly claim 2 , and the transverse crystal axes of the second optical component are rotated relative to those of the first optical component to reduce the intrinsic birefringence of the lens assembly.4. The lens ...

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Номер записи: 75
10-06-2021 дата публикации

LENS STACK WITH REPLACEABLE OUTER LENS

Номер: US20210173167A1
Автор: Cotoros Ingrid, Griggs Ian
Принадлежит:

Systems and methods are disclosed for replaceable outer lenses. For example, an image capture device may include a lens barrel in a body of the image capture device, the lens barrel including multiple inner lenses; a replaceable lens structure that is mountable on the body of the image capture device, the replaceable lens structure including an outer lens and a retaining ring configured to fasten the outer lens in a position covering a first end the lens barrel in a first arrangement and configured to disconnect the outer lens from the body of the image capture device in a second arrangement; and an image sensor mounted within the body at a second end of the lens barrel, the image sensor configured to capture images based on light incident on the image sensor through the outer lens and the multiple inner lenses when the retaining ring is in the first arrangement. 1. An image capture device comprising:a lens barrel in a body of the image capture device, the lens barrel including multiple inner lenses;a replaceable lens structure that is mountable on the body of the image capture device, the replaceable lens structure including an outer lens and a retaining ring configured to fasten the outer lens in a position covering a first end of the lens barrel in a first arrangement and configured to disconnect the outer lens from the body of the image capture device in a second arrangement; andan image sensor mounted within the body at a second end of the lens barrel and configured to capture images based on light incident on the image sensor through the outer lens and the multiple inner lenses when the retaining ring is in the first arrangement.2. The image capture device of claim 1 , in which the outer lens is a curved lens.3. The image capture device of claim 1 , in which the outer lens is a fisheye lens.4. The image capture device of claim 1 , in which the retaining ring is glued to the outer lens.5. The image capture device of claim 1 , in which the outer lens is secured ...

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Номер записи: 76
24-05-2018 дата публикации

Negative Lens and Endoscope Objective

Номер: US20180143421A1
Автор: Robin Hegenbarth, Walter Vogel
Принадлежит: Karl Storz SE and Co KG

A negative lens, for an oblique-view endoscope objective, has a first face with a first optical surface and a second face with a second optical surface opposing the first optical surface, the second optical surface being a concave optical surface, wherein a recess is formed in the second face adjacent to the concave optical surface. An endoscope objective, that includes a deflection prism having an entrance face and further including a negative lens, the negative lens having a first face with a first optical surface and a second face with a second optical surface opposing the first optical surface, the second optical surface being a concave optical surface. The negative lens is mounted on a distal planar surface of the deflection prism such that a rim encompassing the concave optical surface abuts the distal planar surface of the deflection prism.

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Номер записи: 77
15-09-2022 дата публикации

DISPLAY SWITCHING DEVICE

Номер: US20220291425A1
Автор: ARAI Tsuyoshi, KURATA Gouo, MORI Yuto, SHINOHARA Masayuki, YOSHIDA Hayato
Принадлежит: Omron Corporation

A lens array included in a display switching device according to one or more embodiments may include a portion having a greater average of curvature radii of microlenses at a greater distance from a predetermined lens reference position on a surface of the lens array including the microlenses. 1. A display switching device for switching display images by switching light illumination from a plurality of light sources , the device comprising:a lens array comprising a plurality of lenses; anda display unit comprising a plurality of pixel regions, the plurality of pixel regions being configured to allow passage of light emitted from the plurality of light sources and focused by the plurality of lenses comprised in the lens array, whereineach of the plurality of pixel regions has a transmittance corresponding to a predetermined static pattern,the plurality of lenses comprise a spherical lens, andthe lens array comprises a portion having a greater average of curvature radii of lenses of the plurality of lenses at a greater distance from a predetermined lens reference position on a surface of the lens array comprising the plurality of lenses.2. The display switching device according to claim 1 , whereina light source reference position is at a predetermined position on a light source placement surface receiving the plurality of light sources, andeach of the curvature radii is a value greater than or equal to R satisfying a formula of cos θ/L+n cos θ/(T−R(1−cos θ))=(n−1)/R,where θ is an angle between a straight line connecting the light source reference position and a center of a sphere defined by a spherical surface of a corresponding lens of the plurality of lenses and a direction perpendicular to the light source placement surface,L is a distance from the light source reference position to the lens array,n is a refractive index of a material comprised in the lens array, andT is a thickness of the lens array.3. A display switching device for switching display images by ...

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Номер записи: 78
16-05-2019 дата публикации

Snow removing apparatus of led traffic signal light

Номер: US20190145616A1
Автор: Jea H. Koo
Принадлежит: Chungcheong Information & Communication Co Ltd, Dongyoul Sual, ZITEK Corp

The present invention, to achieve this purpose, is equipped with an infra-red emitting unit; an infra-red receiving unit that is installed inside a lens and receives infra-red reflected from the infra-red emitting unit; a CDS sensor installed inside a lens and which measures visible light to compensate the emitting output of the infra-red emitting unit, and; a heater that is installed in the lens and which is supplied power to generate heat, and is characterized in that the lens has a gentle curvature, with ceramic-coated coil securing grooves formed on the inside of the lens along its inside surface, with heater coils installed by inserting in the coil securing grooves.

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Номер записи: 79
17-06-2021 дата публикации

MOBILE SOLAR REFRACTION DEVICE

Номер: US20210181453A1
Автор: Heck David P., Zolnowski Michael R.
Принадлежит:

In one example, a mobile solar system includes a solar refraction device comprising a lens array assembly having a plurality of lens array sub-assemblies. The lens array assembly is configured to refract solar energy impinging on the lens array assembly to focus refracted solar energy at a plurality of focal points of the plurality of lens array sub-assemblies. Each focal point of the plurality of focal points corresponds to a corresponding lens array sub-assembly of the solar refraction device. The solar system further includes a frame supporting the solar refraction device above an underlying surface, and a mobility system coupled to the frame to provide for movement of the solar refraction device above and across the underlying surface. 1. A mobile solar system , comprising:a solar refraction device comprising a lens array assembly having a plurality of lens array sub-assemblies, the lens array assembly configured to refract solar energy impinging on the lens array assembly to focus refracted solar energy at a plurality of focal points of the plurality of lens array sub-assemblies, each focal point of the plurality of focal points corresponding to a corresponding lens array sub-assembly of the plurality of lens array sub-assemblies;a frame supporting the solar refraction device above an underlying surface; anda mobility system coupled to the frame to provide for movement of the solar refraction device above and across the underlying surface.2. The system of claim 1 , wherein the mobility system comprises a motor.3. The system of claim 1 , wherein the frame is configured to be attached to a motorized vehicle.4. The system of claim 1 , wherein the mobility system comprises one or more wheels or continuous treads.5. The system of claim 4 , wherein the frame supporting the solar refraction device further comprises retractable feet.6. The system of claim 1 , wherein the solar refraction device is configured to be removable from the frame.7. The system of claim 1 , ...

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Номер записи: 80
23-05-2019 дата публикации

PANORAMIC IMAGING SYSTEM

Номер: US20190154885A1
Автор: Harris Todd Louis, Steever Audrey
Принадлежит:

A panoramic annular lens projects a spherical field of view onto a two-dimensional annular format. The panoramic annular lens includes a body, a first refractive surface configured to refract input light rays to obtain first refracted light rays, a first reflective surface configured to reflect the first refracted light rays to obtain first reflected light rays, a second reflective surface configured to reflect the first reflected light rays to obtain second reflected light rays, and a second refractive surface configured to refract the second reflected light rays to obtain output light rays in the two-dimensional annular format. The second refractive surface is externally concave. 1. A panoramic annular lens for projecting a spherical field of view onto a two-dimensional annular format , the panoramic annular lens comprising:a body;a first refractive surface configured to refract input light rays to obtain first refracted light rays;a first reflective surface configured to reflect the first refracted light rays to obtain first reflected light rays;a second reflective surface configured to reflect the first reflected light rays to obtain second reflected light rays; anda second refractive surface configured to refract the second reflected light rays to obtain output light rays in the two-dimensional annular format, the second refractive surface externally concave.2. The panoramic annular lens of claim 1 , wherein the second refractive surface has a curvature between 0.01 and 0.05.3. The panoramic annular lens of claim 1 , wherein the second refractive surface has a conic constant of 0.4. The panoramic annular lens of claim 1 , wherein the first refractive surface is externally convex.5. The panoramic annular lens of claim 1 , wherein the second refractive surface is aspheric.6. The panoramic annular lens of claim 1 , wherein the first reflective surface has a curvature of −0.1 to −0.04.7. The panoramic annular lens of claim 1 , wherein the first reflective surface ...

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Номер записи: 81
24-06-2021 дата публикации

OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD OF MANUFACTURING OPTICAL SYSTEM

Номер: US20210191112A1
Автор: ITO Tomoki, MAKIDA Ayumu, MIWA Satoshi, TSUBONOYA Keisuke, UEHARA Takeru, YABUMOTO Hiroshi, Yamamoto Hiroshi, YAMASHITA Masashi
Принадлежит:

An optical system (LS) includes lenses (L22,L23) satisfying the following conditional expressions, 2. The optical system according to claim 1 , wherein the lens satisfies the following conditional expression:{'br': None, 'i': 'dLZ', 'ν<35.0.'}3. The optical system according to claim 1 , wherein the lens satisfies the following conditional expression:{'br': None, 'i': '<νdLZ', '18.0<35.0.'}4. The optical system according to claim 1 , wherein the lens satisfies the following conditional expression:{'br': None, 'i': Подробнее

Номер записи: 82
24-06-2021 дата публикации

OPTICAL DEVICE ALLOWING TO CREATE OPTICAL AESTHETIC AND TECHNICAL EFFECTS

Номер: US20210191332A1
Автор: BLATTER Cédric, Debaud Nicolas, Monferrer Bernat, TORTORA Pierpasquale
Принадлежит: Blancpain SA

An optical device including a transparent support provided with an upper face and a lower face which extends at a distance from the upper face, the transparent support forming a lens of plano-concave shape delimited on a first side by a planar surface, and delimited on a second side, opposite the first side, by a concave surface, the optical device also including a shutter which is disposed under the concave surface of the transparent support, at a distance therefrom, the optical device finally including a substrate disposed after the shutter. 1. An optical device comprising a transparent support provided with an upper face and a lower face which extends at a distance from the upper face , said transparent support forming a lens of plano-concave shape delimited on a first side by a planar surface , and delimited on a second side , opposite the first side , by a concave surface , the optical device also comprising a shutter which is disposed under the concave surface of the transparent support , at a distance therefrom , the optical device finally comprising a substrate disposed after the shutter , the optical device being arranged to form , through the plano-concave lens , the image of an edge of the shutter with the image of an object disposed above the planar surface of said plano-concave lens.2. The optical device according to claim 1 , wherein the optical refractive index of the material from which the plano-concave lens is made is comprised between 1.60 and 1.85.3. The optical device according to claim 2 , wherein the optical refractive index is equal to 1.78.4. The optical device according to claim 2 , wherein the plano-concave lens is made of glass or polymer.5. The optical device according to claim 3 , wherein the plano-concave lens is made of glass or polymer.6. The optical device according to claim 1 , wherein the concave surface is curved.7. The optical device according to claim 2 , wherein the concave surface is curved.8. The optical device according to ...

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Номер записи: 83
29-09-2022 дата публикации

Micro-Optic Device for Producing a Magnified Image

Номер: US20220305836A1
Автор: Jolic Karlo
Принадлежит:

The present disclosure relates to a micro-optic device for producing a magnified image, including: a first unitary structure on one side of a substrate, the first unitary structure including a first group of focusing elements and a first group of imagery elements, wherein one of the first group of focusing elements and the first group of imagery elements is recessed with respect to the other, wherein the device further includes at least a first coating of ink overprinted on the first unitary structure, to at least partially fill the recessed group of elements, and wherein a property of the ink provides a visual contrast in the magnified image. 1. A micro-optic device for a security document for producing a magnified image , including:a first unitary structure on one side of a substrate, the first unitary structure including a first group of refractive focusing elements and a first group of imagery elements,wherein one of the first group of refractive focusing elements and the first group of imagery elements is recessed with respect to the other,wherein the device further includes a first coating of ink overprinted on the first unitary structure, to at least partially fill the recessed group of elements, andwherein a property of the ink provides a visual contrast in the magnified image.2. The micro-optic device of claim 1 , wherein the first coating of ink forms an integral component of the magnified image.3. The micro-optic device of claim 1 , wherein the first coating of ink is overprinted on the first unitary structure in areas that do not contain structures forming the imagery elements claim 1 , such as on the refractive focusing elements or along boundaries between adjacent refractive focusing elements.4. The micro-optic device of claim 1 , wherein the property of the ink providing a visual contrast is a refractive index of the ink claim 1 , which is different to refractive index of the unitary structure claim 1 , and/or a colour of the ink.5. The micro-optic ...

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Номер записи: 84
15-06-2017 дата публикации

Optical image capturing system

Номер: US20170168267A1
Автор: Nai-Yuan Tang, Yeong-Ming Chang
Принадлежит: Ability Opto Electronics Technology Co Ltd

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.

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Номер записи: 85
29-09-2022 дата публикации

LENS ASSEMBLY AND PORTABLE ELECTRONIC DEVICE

Номер: US20220308267A1
Автор: CHOI Tae Su, PARK Ju Sung, SEO Sot Eum, YANG Dong Shin
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A lens assembly includes a lens including an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion, a blocking member disposed in front of the lens and having an opening to allow light to be incident on the lens, and a lens barrel accommodating the lens. The optical portion is noncircular and a portion of the blocking member facing the optical portion in an optical axis direction is located to be higher than a portion of the blocking member facing the flange portion in the optical axis direction. 1. A lens assembly comprising:a lens comprising an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion;a blocking member disposed in front of the lens and comprising an opening to allow light to be incident on the lens; anda lens barrel accommodating the lens,wherein a length of the lens in a first direction perpendicular to an optical axis is longer than a length of the lens in a second direction perpendicular to the optical axis and the first direction, andwherein a portion of the blocking member, facing the optical portion in an optical axis direction, is located to be higher than a portion of the blocking member, facing the flange portion in the optical axis direction.2. The lens assembly of claim 1 , wherein the blocking member is in contact with the flange portion and is not in contact with the optical portion.3. The lens assembly of claim 1 , wherein the portion of the blocking member facing the optical portion in the optical axis direction claim 1 , comprises an arc shape.4. The lens assembly of claim 1 , wherein the optical portion comprises a first edge and a second edge having an arc shape when viewed in the optical axis direction claim 1 , and a third edge and a fourth edge claim 1 , connecting the first edge and the second edge to each other.5. The lens assembly of claim 4 , wherein the flange portion extends from the first ...

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Номер записи: 86
21-05-2020 дата публикации

GLASS LENS AND LENS MODULE USING THE SAME

Номер: US20200158921A1
Автор: Yan Junjie
Принадлежит:

The present disclosure provides a glass lens and a lens module. The glass lens has an optical axis, and includes an optical portion and a connecting portion surrounding the optical portion. The connecting portion includes a first reference surface and a second reference surface opposite to the first reference surface. The optical portion includes a first optical surface located on one side of the first reference surface and a second optical surface located on one side of the second reference surface. The structure of the glass lens of the present disclosure can form a smaller optical portion without occupying space, and meanwhile, a matching structure can be disposed on the second reference surface of the connecting portion, which can effectively reduce the installation difficulty and positioning cost of the glass lens, and make the product have excellent optical performances meanwhile. 1. A glass lens having an optical axis , comprising an optical portion and a connecting portion surrounding the optical portion;wherein the connecting portion comprises a first reference surface and a second reference surface opposite to the first reference surface,the optical portion comprises a first optical surface located on one side of the first reference surface and a second optical surface located on one side of the second reference surface,the first optical surface comprises an optically effective region and a transitional inclined surface extending from the optically effective region towards the first reference surface,the transitional inclined surface extends away from the optical axis,the optically effective region surrounds the optical axis, and the optical axis is located in a center of the optically effective region;wherein the glass lens satisfies following conditions:A/C>0.5;0° Подробнее

Номер записи: 87
21-05-2020 дата публикации

REDUCING THE OPTICAL EFFECTS OF DOMES

Номер: US20200161752A1
Автор: KURTZ Russell
Принадлежит:

This application discloses an apparatus for minimizing the optical effects of transmissive domes, and for using the dome surfaces to correct for other optical aberrations and distortions. Herein, the inner surface of the dome is designed to correct for unwanted optical effects of the outer surface of the dome and may also be used to correct for other anticipated effects in the overall optical system. 1. An apparatus for the correction of dome aberrations comprising:a dome comprising a curved shell comprising an inside surface and an outside surface;wherein the inside and outside surfaces of the dome comprise two separate shapes that combine to form a corrector that improves the quality of the image formed or the information collected by a radiation-collection system underneath the dome; andwherein the dome comprises a material capable of transmitting radiation.2. The apparatus of wherein the inside surface of the dome comprises a shape that counteracts aberrations or distortions induced by the outside surface of the dome.3. The apparatus of wherein the dome surfaces comprise conic sections.4. The apparatus of wherein the dome surfaces comprise conic sections that are concentric.5. The apparatus of wherein at least one dome surface comprises a three-dimensional function that is not a conic section.6. The apparatus of wherein at least one of the dome surfaces comprises a localized function applied as a variation to an overall shape function.7. The apparatus of wherein the outside surface of the dome is designed for aerodynamic properties claim 1 , imaging claim 1 , radiation-collection properties claim 1 , or a mixture thereof.8. The apparatus of wherein the dome comprises a material comprising enhanced reflection claim 1 , transmission claim 1 , absorption claim 1 , or mixtures thereof claim 1 , across some part of the electromagnetic spectrum.9. The apparatus of wherein the dome comprises a spheroidal shape claim 1 , an ellipsoidal shape claim 1 , or an ogive shape. ...

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Номер записи: 88
21-06-2018 дата публикации

Lens with elongated radiation pattern

Номер: US20180172238A1
Автор: Michael David Camras
Принадлежит: LUMILEDS LLC

An elongated lens ( 300 ) is formed with a trough ( 310 ) along the long axis on the light emitting surface of the lens. The elongated lens ( 300 ) may include a curved wall ( 325 ) about its perimeter, and a smooth transition ( 317 ) between the curved wall ( 325 ) and the trough ( 310 ). The trough ( 310 ) may include a concave shape along both the long axis and the short axis, although the radius of curvature of the concave shape may differ between the long and short axes. The eccentricity of the illumination pattern may be controlled by the size of the trough ( 310 ) and these radii of curvature.

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Номер записи: 89
02-07-2015 дата публикации

HYBRID GRIN DIFFRACTIVE OPTICS

Номер: US20150185369A1
Автор: Chipper Robert B.
Принадлежит: Raytheon Company

In one embodiment, an optical imaging system is disclosed incorporating at least two gradient refractive index optical elements of a plurality of gradient refractive index optical elements made from at least one bulk material having a gradient refractive index and at least one diffractive optical element of a plurality of diffractive optical elements integrated within at least one of the plurality of gradient refractive index optical elements. Various embodiments disclosed incorporate at least one diffractive optical element configured as a surface relief structure patterned on at least one surface of the at least one gradient refractive index optical element. The surface relief structure includes at least one of a diffraction grating structure, a diffractive lens structure, and a kinoform structure. The at least one bulk material includes at least one of a radial gradient refractive index, an axial gradient refractive index, and a spherical gradient refractive index. 1. An optical imaging system comprising:at least two gradient refractive index optical elements of a plurality of gradient refractive index optical elements made from at least one bulk material having a gradient refractive index; andat least one diffractive optical element of a plurality of diffractive optical elements integrated within at least one of the plurality of gradient refractive index optical elements.2. The optical imaging system of claim 1 , wherein the at least one diffractive optical element is configured as a surface relief structure patterned on at least one surface of the at least one gradient refractive index optical element.3. The optical imaging system of claim 1 , wherein the at least one bulk material has a radial gradient refractive index distribution.4. The optical imaging system of claim 3 , wherein an axis of the radial gradient refractive index distribution coincides with a geometric axis of radial symmetry of the at least one gradient refractive index optical element.5. The ...

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Номер записи: 90
08-07-2021 дата публикации

Optical system of near-eye see-through head-mounted display

Номер: US20210208399A1
Автор: Rongjie WEI
Принадлежит: Tapuyihai (shanghai) Intelligent Technology Co Ltd

The invention discloses an optical system of near-eye see-through head-mounted display, comprising a first lens, a second lens and a micro image display, the first lens and the second lens are attached to the micro image display, and the first lens and the second lens are free-form lenses with a uniform thickness. The architecture of the optical system of near-eye see-through head-mounted display provided by the present invention can not only reduce the number of times the light is refracted in the architecture of the optical system, but also eliminate the aberration of the light emitted by the micro image display in all directions, making the images be viewed from all directions and angles with no aberration.

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Номер записи: 91
28-06-2018 дата публикации

MULTIPLE WAVELENGTH OPTICAL SYSTEM

Номер: US20180180532A1
Автор: Chen Ming-hui, CHU Kang-Yu, TSENG Sheng-Hao
Принадлежит:

A multiple wavelength optical system includes plural solid state light sources, an optical diffuser, a lens assembly, and at least one photodetector. The solid state light sources have different wavelength ranges respectively. The optical diffuser has an incident surface and an exit surface opposite to the incident surface. The solid state light sources are disposed opposite the incident surface, and the lens assembly is disposed opposite the exit surface. Each of the solid state light sources faces the incident surface in the same direction. The lights of the solid state light sources enter the optical diffuser and exit from the exit surface, and then are focused by the lens assembly. Finally, the focused lights are projected on a surface of an object. At least one photodetector receives the reflected lights and the penetrating lights from the surface of the object. 1. A multiple wavelength optical system , comprising:a plurality of solid state light sources having different wavelength ranges respectively;an optical diffuser having an incident surface and an exit surface opposite to the incident surface, wherein the solid state light sources are disposed opposite the incident surface;a lens assembly is disposed opposite the exit surface; andat least one photodetector;wherein each of the solid state light sources faces the incident surface in the same direction, and the lights of the solid state light sources enter the optical diffuser and exit from the exit surface, and the lights of the solid state light sources are focused by the lens assembly and then projected on a surface of an object;wherein the at least one photodetector receives a portion of the lights reflected by the object or a portion of the lights penetrating the object from the surface of the object.2. The multiple wavelength optical system of claim 1 , further comprising a control module electrically connected to the solid state light source to control luminous intensity of the solid state light ...

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Номер записи: 92
28-06-2018 дата публикации

Display module and head-mounted display device including the same

Номер: US20180180888A1
Автор: Hanseok Kim, Keongjin Lee, Sungmin Jung
Принадлежит: LG Display Co Ltd

A display module and an HMD device including the same are discussed in which a black matrix is not recognized as a lattice type by a user without an increase in resolution of the display module. The display module according to an embodiment includes a first substrate on which a plurality of pixels are provided, a second substrate including one surface on which an engraved pattern is provided, and a lens layer filled into the engraved pattern of the second substrate. The lens layer comprises a plurality of lenses respectively corresponding to the plurality of pixels.

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Номер записи: 93
28-06-2018 дата публикации

ILLUMINATOR FOR DPM SCANNER

Номер: US20180181783A1
Автор: FENG CHEN, Gillet Alain, Li Hui, Ouyang Yunxin, Ren Jie
Принадлежит:

A compact illuminator for a direct part marking (DPM) scanner is provided to perform dual-field, multi-color, multi-directional, multi-distance illumination functions. The illuminator can selectively provide dark field and bright field illumination with broad spectrum white or narrow band color, in combination with directions for near contact distance as well as far distance barcode readings. Specifically, illuminator includes a front edge illuminator with customized LED optics, a dome diffuser, an LED board assembly, and a reflective sleeve surrounding the dome diffuser. The board assembly can further include an alternative on/off plural point source bright field spot illuminating system. A method for scanning DPM indicia focuses on generating illumination light using an illumination assembly, illuminating the DPM indicia, detecting reflected and/or scattered light, and capturing under different illumination conditions and combining at least two consecutive images of the DPM indicia, followed by processing and decoding the obtained image. 1. An illuminator for a direct part marking (DPM) scanner , the illuminator comprising:an imager window;front edge illuminator optics disposed between the imager window and a region of interest, the optics and imager window defining a field of view and an optical axis;an enclosure configured to support the optics at a distance defined by the field of view;a dome diffuser coaxially aligned with the optical axis, having a front end at least partially surrounding the field of view proximate to the enclosure, and a rear end proximate to the imager window;an LED assembly coaxially aligned with the optical axis, and proximal to the rear end of the dome diffuser; anda reflective sleeve coaxially aligned with the optical axis and at least partially surrounding the dome diffuser, having a first end operably coupled to the enclosure and a second end operably coupled to the LED assembly.2. The illuminator according to claim 1 , wherein the ...

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Номер записи: 94
04-06-2020 дата публикации

META-LENS AND OPTICAL APPARATUS INCLUDING THE SAME

Номер: US20200174163A1
Автор: HAN Seunghoon, LEE Suyeon
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided is a meta-lens including a first region including a plurality of first nanostructures that are two-dimensionally provided in a circumferential direction and a radial direction, wherein the plurality of first nanostructures are provided based on a first rule, and a plurality of second regions surrounding the first region, each of the plurality of second regions including a plurality of second nanostructures that are two-dimensionally provided in a circumferential direction and a radial direction, wherein the plurality of second nanostructures are provided in each of the plurality of second regions based on a plurality of second rules, respectively, that are different from the first rule. 1. A meta-lens comprising:a first region comprising a plurality of first nano structures that are two-dimensionally provided in a circumferential direction and a radial direction, wherein the plurality of first nanostructures are provided based on a first rule; anda plurality of second regions surrounding the first region, each of the plurality of second regions comprising a plurality of second nanostructures that are two-dimensionally provided in the circumferential direction and the radial direction,wherein the plurality of second nanostructures are provided in each of the plurality of second regions based on a plurality of second rules, respectively, that are different from the first rule.2. The meta-lens of claim 1 , wherein the first region has a circular shape claim 1 , and each of the plurality of second regions have a concentric ring-shape.3. The meta-lens of claim 1 , wherein a number of the plurality of second regions claim 1 , the first rule claim 1 , and the plurality of second rules are set such that the meta-lens has refractive power with respect to incident light of a predetermined wavelength band.4. The meta-lens of claim 3 , wherein the predetermined wavelength band comprises a visible light wavelength band.5. The meta-lens of claim 4 , wherein the number of ...

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Номер записи: 95
07-07-2016 дата публикации

Coated cutting tool and a method for coating the cutting tool

Номер: US20160194748A1
Автор: Magnus ODÉN, Mats JOHANSSON-JOESAAR, Naureen Ghafoor, Rikard FORSÉN, Syed Muhammad BILAL
Принадлежит: FoxyLED GmbH, SECO TOOLS AB

A coated cutting tool and a hard and wear resistant coating for a body include at least one metal based nitride layer. The layer is (ZrxCrl-x-y-zAlyMez)Na with 0.55<x<0.85, 0.05<y<0.45, 0≦z<0.20, 0.95<a<1.10, and Me is one or more of the elements: Y, Ti, V, Nb, Ta, Mo, W, Mn or Si. The layer can have a thickness between 0.5 μm and 15 μm and be comprisied of a single cubic phase or a single hexagonal phase or a mixture thereof. In an exemplary embodiment, the layer is a cubic phase of a sodium chloride structure. The layer can be deposited using cathodic arc evaporation and is useful for metal cutting applications generating high temperatures.

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Номер записи: 96
07-07-2016 дата публикации

Curved Display Device

Номер: US20160195646A1
Автор: Cui Wenhai, SU Dan, Wang Jieqiong, Wu Jun
Принадлежит:

The present invention provides a curved display device, and relates to the field of display technology. The curved display device comprises a plane display panel and a gradient index lens provided at light exit side of the plane display panel, wherein the gradient index lens makes light exiting from the plane display panel converge toward a center of display surface of the curved display device. In the present invention, by adding a gradient index lens to a traditional plane display panel and using refraction effect of light by the gradient index lens, curved display is achieved without curving the display panel, thus poor display caused by curving the display panel is effectively avoided. 1. A curved display device , comprising a plane display panel and a gradient index lens provided at light exit side of the plane display panel , wherein the gradient index lens makes light exiting from the plane display panel converge toward a center of display surface of the curved display device.2. The curved display device of claim 1 , wherein claim 1 , the plane display panel has a vertical center axis claim 1 , and the gradient index lens includes a plurality of refraction sections arranged in parallel to the vertical center axis claim 1 , and the refraction sections have refractive indexes gradually decreasing from middle position of the gradient index lens to two ends thereof.3. The curved display device of claim 2 , wherein the refraction sections are arranged symmetrically with respect to the vertical center axis.5. The curved display device of claim 1 , wherein the gradient index lens has a plate shape claim 1 , and the curved display device further comprises a curved glass provided at the light exit side of the gradient index lens claim 1 , the curved glass has a plane surface at a side towards the gradient index lens claim 1 , and has an inward concave surface at a side away from the gradient index lens.6. The curved display device of claim 2 , wherein the gradient ...

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Номер записи: 97
25-09-2014 дата публикации

METHOD FOR PRODUCING A REFRACTIVE OR DIFFRACTIVE OPTICAL DEVICE

Номер: US20140285891A1
Автор: Heitzmann Michel
Принадлежит: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT

A method producing a refractive or diffractive optical device, including: production, in a first layer, of at least one inclined general profile approximated by a staircase profile including plural stairsteps; production of the profile including: forming buffer patterns on the first layer and at least one sequence including: forming masking patterns, so each masking pattern includes at least one edge situated above a buffer pattern and covers at least one area of the first layer not masked by the buffer patterns, the forming the masking patterns also defining, for the first layer, plural free areas not masked by the masking patterns or by the buffer patterns; etching the free areas to form trenches in the first layer. The production of the profile also includes: removing the masking patterns, removing the buffer patterns revealing walls previously covered by the buffer patterns, and then an isotropic etching to remove the walls. 121-. (canceled)22. A method for producing , in a first layer , at least one inclined general profile approximated by a staircase profile including a plurality of stairsteps; production of the profile comprising: forming buffer patterns on the first layer , and at least one sequence comprising:forming masking patterns, performed so that each masking pattern includes at least one edge situated above a buffer pattern and covers at least one area of the first layer not masked by the buffer patterns, the forming the masking patterns also being performed to define, for the first layer, a plurality of free areas not masked by the masking patterns or by the buffer patterns;etching the free areas to form trenches in the first layer;wherein the production of the profile further comprises: removing the masking patterns, removing the buffer patterns to reveal walls covered by the buffer patterns, and having sidewalls uncovered, and then an isotropic etching to remove the walls, the isotropic etching having to laterally attack the walls.23. A method ...

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Номер записи: 98
22-07-2021 дата публикации

Micro-lens structure and manufacturing method therefor

Номер: US20210223441A1
Автор: Chun-Liang Chen, Shih-Ping Lee, Ya-Ting Chen
Принадлежит: Powerchip Semiconductor Manufacturing Corp

A micro-lens structure includes a substrate and a micro-lens. The micro-lens includes a shape adjustment portion and a lens pattern. The shape adjustment portion includes a plurality of shape adjustment patterns on the substrate. The lens pattern covers the shape adjustment patterns.

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Номер записи: 99
22-07-2021 дата публикации

Lens assembly

Номер: US20210223498A1
Автор: Dong Shin YANG, In Gun KIM, Ju Sung Park, Sot Eum SEO
Принадлежит: Samsung Electro Mechanics Co Ltd

A lens assembly includes a lens including an optical portion to refract light and a flange portion extended along a periphery of at least a portion of the optical portion, and a lens barrel to accommodate the lens. The flange portion has a non-circular shape and includes a first di-cut portion on a first side surface of the flange portion, a second di-cut portion on a second side surface of the flange portion, and arc portions connecting the first di-cut portion and the second di-cut portion. A first distance between the first di-cut portion and an optical axis of the lens and a second distance between the second di-cut portion and the optical axis of the lens are smaller than a distance between respective opposite ends of the arc portions and the optical axis.

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Номер записи: 100