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公开(公告)号：US10942397B2
公开(公告)日：2021-03-09
申请号：US15797795
申请日：2017-10-30
Inventor： Liangjia Zong , Daping Chu , Haining Yang
IPC: G02F1/1337 , G02F1/1362 , H01L21/02 , G02F1/1333 , G02F1/1335 , G02F1/1343
Abstract: A spatial phase modulator and a method for producing a spatial phase modulator are provided. The spatial phase modulator includes a first substrate and a second substrate that are meshed together, and a liquid crystal layer disposed between the two substrates, where a transparent electrode layer and a first alignment and guiding layer are disposed in a cascading manner on a side that is of the first substrate and that faces the liquid crystal layer; and an electrode layer and an insulation medium glass layer are disposed in a cascading manner on a side that is of the second substrate and that faces the liquid crystal layer, where the insulation medium glass layer has an inclined serration structure on a side facing the liquid crystal layer.
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公开(公告)号：US10887566B2
公开(公告)日：2021-01-05
申请号：US16564921
申请日：2019-09-09
Inventor： Jia Jia , Jhensi Chen , Daping Chu , Jun Yao
IPC: H04N9/31 , H04N13/383
Abstract: An image display system is provided and includes: at least one first projection unit, configured to project rays of N images on a first plane, so that the rays of the N images are projected on N first regions of the first plane, where the N images are images of a target object photographed based on N angles, and N≥2; and at least one first refraction unit, configured on the first plane, and configured to perform refraction processing on the rays of the images projected on the first regions, so that the rays of the N images are collected on a common display region. In this way, presentation of a three-dimensional image can adapt to a human eye viewing habit.
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公开(公告)号：US09930431B2
公开(公告)日：2018-03-27
申请号：US15174954
申请日：2016-06-06
Applicant: Cambridge Enterprise Limited
Inventor： Daping Chu , Neil Collings , William Crossland , Maura Michelle Redmond , Brian Robertson
CPC classification number: H04Q11/0005 , G02F1/292 , G02F2203/12 , G02F2203/18 , G03H1/0005 , G03H1/2294 , G03H2225/32 , H04J14/0212 , H04L45/62 , H04Q2011/0016
Abstract: This invention relates to methods and apparatus for routing light beams in telecommunications devices using holographic techniques, in particular by displaying kinoforms on Liquid Crystal on Silicon devices. At least one optical input to receives an input beam. A plurality of optical outputs and a spatial light modulator (SLM) on an optical path between said optical input and said optical outputs are provided, and a driver for said SLM to display a kinoform on said SLM diffracts said input beam into an output beam comprising a plurality of diffraction orders, wherein a routed one of said diffraction orders is directed to at least one selected said optical output; said apparatus is configured to modify a wavefront of said output beam to reduce a coupling of said output beam into said selected optical output; and said kinoform is adapted to compensate for said wavefront modification to compensate for said reduced coupling.
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公开(公告)号：US20170315507A1
公开(公告)日：2017-11-02
申请号：US15384280
申请日：2016-12-19
Applicant: Cambridge Enterprise Limited
Inventor： Neil Collings , Andreas Georgiou , Maura Michelle Redmond , Brian Robertson , Jinsong Liu , William Crossland , John Richard Moore , Daping Chu
CPC classification number: G03H1/0841 , G02B5/32 , G02B6/3558 , G02B6/3588 , G02F1/136277 , G03H1/0808 , G03H1/2294 , G03H2001/0816 , G03H2001/085 , G03H2210/44 , G03H2222/31 , G03H2225/32 , G03H2225/60 , G03H2226/02 , H04Q11/0005
Abstract: A LCOS routing device, comprising: an optical input and plurality of optical outputs; a spatial light modulator (SLM) between said input and output, for displaying a kinoform; a data processor, configured to provide kinoform data for displaying said kinoform on said SLM. Said data processor inputs routing and calculates said kinoform data. Said data processor calculates kinoform data by: determining an initial phase pattern for said kinoform; calculating a replay field of said phase pattern; modifying an amplitude component of said replay field, retaining a phase component of said replay field to provide an updated replay field; performing a space-frequency transform on said updated replay field to determine an updated phase pattern for said kinoform; and repeating said calculating and updating of said replay field and said performing of said space-frequency transform until said kinoform for display is determined; and outputting said kinoform data for display on said LCOS SLM.
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公开(公告)号：US20230393387A1
公开(公告)日：2023-12-07
申请号：US18033225
申请日：2021-10-21
Applicant: CAMBRIDGE ENTERPRISE LIMITED
Inventor： Daping Chu , Yuanbo Deng
CPC classification number: G02B27/0018 , G02B5/0252 , G02B27/0103
Abstract: An image generation system for providing a ghost image free head-up display, the system comprising a display screen having a front surface and a back surface, a picture generation unit for projecting an image towards the display screen for reflection towards an eye box, a field lens, and an anisotropic optical component having a first optical power along a first axis and second optical power along a second axis, wherein the first and second axis are perpendicular, wherein the picture generation unit is configured to project light through the field lens such that light is incident on the front surface of the display screen forming a first virtual image, wherein a portion of the light is transmitted through the display screen and is incident on the back surface of the display screen forming a second virtual image, wherein the first and second virtual images are offset along the first axis, wherein the field lens is configured to project the first virtual image at a first projection distance and the second virtual image at a second projection distance such that the offset is below a threshold magnitude and the first and second virtual images are substantially overlaid as viewed from the eye box, and wherein the anisotropic optical component is configured to magnify the first and second virtual image along the second axis only.
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Patent Agency Ranking
公开(公告)号：US11698528B2
公开(公告)日：2023-07-11
申请号：US16465067
申请日：2017-11-29
Applicant: JAGUAR LAND ROVER LIMITED , CAMBRIDGE ENTERPRISE LIMITED
Inventor： Valerian Meijering , Robert Hardy , Ali Yöntem , Kun Li , Daping Chu
IPC: G02B27/01 , G02B26/08 , H04N5/74 , G02B30/52 , H04N13/395 , H04N13/398 , H04N13/39
CPC classification number: G02B27/0101 , G02B26/0833 , G02B30/52 , H04N5/7408 , H04N13/395 , H04N13/398 , G02B2027/0127
Abstract: An imaging system includes an image realisation device, and projection optics for rendering a display image on a display screen. The image realisation device includes an image realisation surface and a light structuring device having a surface with a first and second region. The light structuring device simulates a first lens on the first region of the surface. A first source image formed on a first region of the image realisation surface and projected through the projection optics renders a first display image on the display screen at a first apparent depth. The light structuring device simulates a second lens on the second region of the surface. A second source image formed on a second region of the image realisation surface and projected through the projection optics renders a second display image on the display screen at a second apparent depth. The first and second lens are independently configurable.
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公开(公告)号：US11409118B2
公开(公告)日：2022-08-09
申请号：US16664409
申请日：2019-10-25
Inventor： Jia Jia , Jhensi Chen , Daping Chu , Qing Zhang , Tao Lin
IPC: G02B27/28 , G02B30/25 , G02B27/01 , G02F1/1335
Abstract: The present disclosure provides a device for generating a 3D light field. The device comprises a first lens having a fixed focal length, and an imaging element arranged to send light into the first lens. The imaging element is configured to send the light from different positions within a defined distance on the optical axis of the first lens, in order to produce different depth layers of the 3D light field within a frame duration.
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公开(公告)号：US10007234B2
公开(公告)日：2018-06-26
申请号：US14294756
申请日：2014-06-03
Inventor： Hong-seok Lee , Hoon Song , Kang-hee Won , Neil Collings , Daping Chu
CPC classification number: G03H1/2294 , G03H1/02 , G03H2001/2239 , G03H2223/17 , G03H2223/19 , G03H2223/24 , G03H2225/24 , G03H2225/25 , G03H2227/03 , G03H2240/56 , G03H2240/61
Abstract: Provided is an optically addressable spatial light modulator (OASLM)-based holographic display and a method of operating the same. The display includes an addressing unit including a light source unit emitting a plurality of recording beams, a driving mirror array including driving mirrors that each reflect a recording beam incident thereon, and a mirror member array including mirror members that each obliquely reflect a recording beam incident thereon, in which each of the driving mirrors corresponds to one of the mirror members. The recording beams, which are transmitted by the addressing unit, are focused onto the OASLM by micro lenses of a lenslet array. The OASLM is optically addressed by the recording beams focused by the micro lenses of the lenslet array and thus modulates and diffracts a reproduction beam, incident thereon from a reproduction beam providing unit, and thus a holographic image is reproduced.
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公开(公告)号：US09588325B2
公开(公告)日：2017-03-07
申请号：US14880880
申请日：2015-10-12
Inventor： Brian Robertson , Kun Ll , Daping Chu , Jun Yao
CPC classification number: G02B17/086 , G03B17/54 , G03B21/28 , G03B21/56 , G03B2206/00 , H04N9/31
Abstract: The present invention provides an optical imaging processing system. The system includes a screen, an incident light source, and at least one optical transmission medium, where the optical transmission medium is disposed in an optical imaging path in which the incident light source is emergent and is projected to the screen; an light incident face of the optical transmission medium faces the incident light source, and an light exiting face of the optical transmission medium faces the screen, where at least one cavity is included between the light incident face and the light exiting face of the optical transmission medium, and a cross-section shape of the cavity is an isosceles trapezoid; and the cavity includes a light transmission area and a light blanking area used for object accommodation, and the optical imaging path bypasses the light blanking area and penetrates through the optical transmission medium through the light transmission area.
Abstract translation: 本发明提供一种光学成像处理系统。 该系统包括屏幕，入射光源和至少一个光传输介质，其中光传输介质设置在光学成像路径中，入射光源在其中突出并投射到屏幕; 光传输介质的光入射面面向入射光源，并且光传输介质的光出射面面向屏幕，其中至少一个空腔包括在光入射面和光传输的光出射面之间 介质，空腔的横截面形状是等腰梯形; 并且该空腔包括光传输区域和用于对象容纳的光消隐区域，并且光学成像路径绕过光消隐区域并穿过光传输介质穿过光传输区域。
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10.发明授权公开(公告)号：US09354604B2
公开(公告)日：2016-05-31
申请号：US13858256
申请日：2013-04-08
Inventor： Hong-seok Lee , Neil Collings , Daping Chu , Hoon Song , William Alden Crossland , Jhen Si Chen
CPC classification number: G03H1/0808 , G02F1/00 , G02F1/135 , G03H1/2294 , G03H2210/30 , G03H2222/36 , G03H2225/25 , G03H2225/32 , G03H2240/41
Abstract: Provided are an optically addressable spatial light modulator (OASLM) divided into a plurality of segments, and an apparatus and method for displaying a holographic three-dimensional (3D) image using the OASLM. The holographic 3D image display apparatus includes a first light source which emits a write beam, an electric addressable spatial light modulator (EASLM) which modulates the write beam emitted from the first light source according to hologram information regarding a 3D image, a second light source which emits a read beam, an OASLM which receives the write beam modulated by the EASLM and modulates the read beam emitted from the second light source according to hologram information included in the modulated write beam, a scanning optical unit which projects the write beam modulated by the EASLM onto the OASLM, and a Fourier lens which focuses the read beam modulated by the OASLM onto a predetermined space to form the 3D image.
Abstract translation: 提供了一种被分成多个段的可光寻址空间光调制器（OASLM），以及使用OASLM显示全息三维（3D）图像的装置和方法。 全息3D图像显示装置包括发射写入光束的第一光源，根据关于3D图像的全息图信息调制从第一光源发射的写入光束的电可寻址空间光调制器（EASLM），第二光源 其发射读取光束，OASLM，其接收由EASLM调制的写入光束，并且根据包括在调制写入光束中的全息图信息调制从第二光源发射的读取光束;扫描光学单元，其投影由 OASLM上的EASLM，以及将由OASLM调制的读取光束聚焦到预定空间以形成3D图像的傅立叶透镜。
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