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公开(公告)号：US20140355985A1
公开(公告)日：2014-12-04
申请号：US14005257
申请日：2012-03-07
Applicant: Cambridge Enterprise Limited
Inventor： Daping Chu , Neil Collings , William Crossland , Maura Michelle Redmond , Brian Robertson
IPC: H04Q11/00 , H04L12/721 , H04J14/02
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 LCOS (Liquid Crystal on Silicon) devices. Thus we describe optical beam routing apparatus comprising: at least one optical input to receive an input beam; a plurality of optical outputs; a spatial light modulator (SLM) on an optical path between said optical input and said optical outputs; and a driver for said SLM to display a kinoform on said SLM to diffract 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; wherein 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 wherein said kinoform is adapted to compensate for said wavefront modification to compensate for said reduced coupling and thereby to reduce a coupling of other diffracted light from said input beam into others of said optical outputs than said at least one selected optical output.
Abstract translation: 本发明涉及使用全息技术在电信设备中布置光束的方法和装置，特别是通过在LCOS（硅晶体）器件上显示基诺型。 因此，我们描述光束路由设备，包括：至少一个光输入端，用于接收输入光束; 多个光输出; 在所述光输入和所述光输出之间的光路上的空间光调制器（SLM）; 以及用于所述SLM的驱动器，用于在所述SLM上显示kinoform，以将所述输入光束衍射成包括多个衍射级的输出光束，其中所述衍射级中的一个所述衍射级指向至少一个所选择的所述光学输出; 其中所述装置被配置为修改所述输出光束的波前以减少所述输出光束到所述选择的光输出中的耦合; 并且其中所述kinoform适于补偿所述波前修正以补偿所述减小的耦合，从而减少来自所述输入光束的其它衍射光与所述至少一个所选择的光输出的耦合。
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公开(公告)号：US10725295B2
公开(公告)日：2020-07-28
申请号：US16465092
申请日：2017-11-30
Applicant: JAGUAR LAND ROVER LIMITED , CAMBRIDGE ENTERPRISE LIMITED
Inventor： Valerian Meijering , Robert Hardy , Ali Yöntem , Kun Li , Daping Chu
Abstract: An imaging system for generating multi-depth virtual images on a display screen includes an image realisation device for forming a source image, and projection optics for rendering a display image on the display screen. The display image is a virtual image corresponding to the source image. The image realisation device includes an image realisation surface having a first and second region, and the image receiving surface and the projection optics are arranged such that a first point in the first region of the image receiving surface and a second point in the second region of the image receiving surface are at a different distance from a focal point of the projection optics. A plurality of surfaces are arranged to direct light from the image realisation surface towards the projection optics.
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公开(公告)号：US10302958B2
公开(公告)日：2019-05-28
申请号：US15643218
申请日：2017-07-06
Inventor： Jiong Zhou , Kun Li , Daping Chu
IPC: G02F1/1343 , G02F1/1335 , G02F1/1339 , G02F1/29 , G02B27/30 , G02B27/22 , G02F1/1333
Abstract: The present disclosure discloses a display apparatus, a stereoscopic display apparatus, and an application terminal thereof. The display apparatus includes a display panel and a light collimation module. The display panel includes an RGB pixel array. The RGB pixel array includes multiple RGB pixels disposed at intervals. The light collimation module includes a control electrode layer, a first transparent substrate, a liquid crystal layer, and a second transparent substrate. The control electrode layer is disposed within the intervals between the RGB pixels or at positions that are on the display panel and that are corresponding to the intervals between the RGB pixels. The first transparent substrate is disposed on the display panel and covers the control electrode. The liquid crystal layer is disposed on the first transparent substrate. The second transparent substrate is disposed on the liquid crystal layer.
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公开(公告)号：US10067471B2
公开(公告)日：2018-09-04
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
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：US10056437B2
公开(公告)日：2018-08-21
申请号：US15224212
申请日：2016-07-29
Inventor： Jiong Zhou , Kun Li , Daping Chu
IPC: G02F1/1333 , G02F1/1335 , G02F1/1343 , H01L51/52 , H01L27/32 , G02B27/22 , G02F1/29 , H04N13/305
CPC classification number: H01L27/322 , G02B27/2214 , G02F1/134309 , G02F1/29 , H01L27/3211 , H01L51/5275 , H01L51/5293 , H04N13/305 , H04N2213/001
Abstract: The present invention provides a stereoscopic imaging apparatus (100), including: a display module (130), including a display pixel layer (131) and a first substrate (132), where the display pixel layer (131) includes a pixel array (133), and the first substrate (132) is disposed on the display pixel layer (131); a second substrate (120), disposed opposite to the first substrate (132); and a first lens layer (110), including a lens array (111), where the first lens layer (110) is disposed between the first substrate (132) and the second substrate (120), and the lens array (111) is configured to receive light transmitted by the pixel array (133), and deflect light, which is transmitted by a corresponding pixel in the pixel array (133), to a different projection direction to implement stereoscopic parallax.
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Patent Agency Ranking
公开(公告)号：US12253670B2
公开(公告)日：2025-03-18
申请号：US17771316
申请日：2020-10-23
Applicant: Cambridge Enterprise Limited
Inventor： Daping Chu , Yuanbo Deng
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 a predetermined eye box, and a field lens, 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 have an offset, wherein the field lens is configured 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.
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公开(公告)号：US11630303B2
公开(公告)日：2023-04-18
申请号：US16465085
申请日：2017-11-29
Applicant: JAGUAR LAND ROVER LIMITED , CAMBRIDGE ENTERPRISE LIMITED
Inventor： Valerian Meijering , Robert Hardy , Kun Li , Ali Yöntem , Daping Chu
IPC: G02B27/01 , H04N13/344 , H04N13/395 , G02B30/52 , H04N5/74
Abstract: A system includes an image realisation device for forming a source image and projection optics for rendering a display image on a display screen, wherein the display image is a virtual image corresponding to the source image. The projection optics have an optical axis, and the image realisation device includes a first image realisation surface at a first distance along the optical axis and a second image realisation surface at a second, different distance along the optical axis. The first and second image realisation surfaces overlap, and the first and second image realisation surfaces include multiple regions, each region switchable between a transparent state and an image realisation state such that the source image may be formed on a region of the first or second image realisation surface and projected through the projection optics to render the display image on the display screen at a first or second apparent depth.
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公开(公告)号：US11252383B2
公开(公告)日：2022-02-15
申请号：US16659255
申请日：2019-10-21
Inventor： Jhensi Chen , Jia Jia , Daping Chu , Qing Zhang , Tao Lin
IPC: H04N9/31
Abstract: The present invention provides a display system for displaying image data. The display system comprises a light source; a spatial light modulator including a plurality of controllable reflective elements; a light source controller, configured to control the light source to emit, in each of a plurality of time intervals, light with a different illumination power level, wherein the time intervals have the same length; and a spatial light modulator controller, configured to activate, based on received image data, the plurality of controllable elements for at least one of the time intervals for directing the light from the light source for display the image data. Accordingly, the frame rate and bandwidth of the display system are increased significantly so as to be suitable for the light filed applications.
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公开(公告)号：US10761392B2
公开(公告)日：2020-09-01
申请号：US15537485
申请日：2015-12-16
Applicant: Cambridge Enterprise Limited
Inventor： Daping Chu , Haining Yang
IPC: G02F1/141
Abstract: We describe a multimode reconfigurable optical spatial mode multiplexing system having first and second first and second input beams and a beam combiner to combine these into an optical output. At least one of the paths comprises a polarisation-independent reconfigurable phase modulator to impose a controllable phase profile on an input beam in an input beam phase modulating optical path, to controllably convert a spatial mode order of the input beam from a lower to a higher order spatial mode. The system also has a control input to control the phase modulator to configure the phase profile for the mode conversion. The input beams are combined into a multiple spatial mode combined beam output independent of a polarisation of the input beams. The number of spatial modes of the combined beam can be more than a number of spatial modes in either of the first and second input beams separately.
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公开(公告)号：US20170371217A1
公开(公告)日：2017-12-28
申请号：US15537485
申请日：2015-12-16
Applicant: Cambridge Enterprise Limited
Inventor： Daping Chu , Haining Yang
IPC: G02F1/141
Abstract: We describe a multimode reconfigurable optical spatial mode multiplexing system having first and second first and second input beams and a beam combiner to combine these into an optical output. At least one of the paths comprises a polarisation-independent reconfigurable phase modulator to impose a controllable phase profile on an input beam in an input beam phase modulating optical path, to controllably convert a spatial mode order of the input beam from a lower to a higher order spatial mode. The system also has a control input to control the phase modulator to configure the phase profile for the mode conversion. The input beams are combined into a multiple spatial mode combined beam output independent of a polarisation of the input beams. The number of spatial modes of the combined beam can be more than a number of spatial modes in either of the first and second input beams separately.
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