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1. 发明授权

US09930431B2 Optical beam routing apparatus and methods 有权
公开(公告)号：US09930431B2
公开(公告)日：2018-03-27
申请号：US15174954
申请日：2016-06-06
申请人： Cambridge Enterprise Limited
发明人： Daping Chu , Neil Collings , William Crossland , Maura Michelle Redmond , Brian Robertson
IPC分类号： H04Q11/00 , H04L12/721 , H04J14/02 , G02F1/29 , G03H1/22 , G03H1/00
CPC分类号： H04Q11/0005 , G02F1/292 , G02F2203/12 , G02F2203/18 , G03H1/0005 , G03H1/2294 , G03H2225/32 , H04J14/0212 , H04L45/62 , H04Q2011/0016
摘要： 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.

2. 发明申请

US20170315507A1 APPARATUS AND METHODS FOR LIGHT BEAM ROUTING IN TELECOMMUNICATION 审中-公开
公开(公告)号：US20170315507A1
公开(公告)日：2017-11-02
申请号：US15384280
申请日：2016-12-19
申请人： Cambridge Enterprise Limited
发明人： Neil Collings , Andreas Georgiou , Maura Michelle Redmond , Brian Robertson , Jinsong Liu , William Crossland , John Richard Moore , Daping Chu
IPC分类号： G03H1/08 , H04Q11/00 , G02B5/32 , G03H1/22 , G02F1/1362 , G02B6/35
CPC分类号： 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
摘要： 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.

3. 发明申请

US20140363162A1 OPTICAL DEVICE AND METHODS 有权
标题翻译：光学装置和方法
公开(公告)号：US20140363162A1
公开(公告)日：2014-12-11
申请号：US14374628
申请日：2013-01-23
申请人： CAMBRIDGE ENTERPRISE LIMITED
发明人： Daping Chu , Neil Collings , John Richard Moore , Mykhaylo Pivnenko , Brian Robertson
IPC分类号： H04Q11/00 , H04J14/02 , G02F1/03
CPC分类号： H04Q11/0005 , B82Y20/00 , G02B1/11 , G02B5/1828 , G02B5/1861 , G02B5/203 , G02B5/32 , G02B6/3512 , G02B6/3524 , G02B6/3534 , G02B6/3592 , G02B27/0172 , G02B27/0927 , G02B27/0944 , G02F1/03 , G02F1/0338 , G02F1/07 , G02F1/136277 , G02F1/292 , G02F1/293 , G02F1/31 , G02F2001/13793 , G02F2201/12 , G02F2201/38 , G02F2203/06 , H04J14/0212 , H04J14/0221 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0035
摘要： We describe methods and devices for manipulating optical signals. A method of manipulating an optical signal comprises providing a device (100) comprising a layer (106) of blue phase liquid crystal in the path of the optical signal; and applying a dynamically varying spatial pattern of voltages across the layer (106) of blue phase liquid crystal, thereby causing the refractive index of the layer (106) of blue phase liquid crystal to vary according the dynamically varying spatial pattern.
摘要翻译：我们描述了用于操纵光信号的方法和设备。一种操纵光信号的方法包括：在光信号的路径中提供包括蓝相液晶层（106）的装置（100）; 以及在蓝相液晶层（106）上应用动态变化的电压空间图案，从而使得蓝相液晶层（106）的折射率根据动态变化的空间图案而变化。

4. 发明授权

US09588325B2 Optical imaging processing system 有权
标题翻译：光学成像处理系统
公开(公告)号：US09588325B2
公开(公告)日：2017-03-07
申请号：US14880880
申请日：2015-10-12
申请人： Huawei Technologies Co., Ltd. , Cambridge Enterprise Limited
发明人： Brian Robertson , Kun Ll , Daping Chu , Jun Yao
IPC分类号： H04N9/31 , G02B17/08 , G03B21/56 , G03B21/28 , G03B17/54
CPC分类号： G02B17/086 , G03B17/54 , G03B21/28 , G03B21/56 , G03B2206/00 , H04N9/31
摘要： 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.
摘要翻译：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。

5. 发明申请

US20140355985A1 OPTICAL BEAM ROUTING APPARATUS AND METHODS 有权
标题翻译：光束路由装置和方法
公开(公告)号：US20140355985A1
公开(公告)日：2014-12-04
申请号：US14005257
申请日：2012-03-07
申请人： Cambridge Enterprise Limited
发明人： Daping Chu , Neil Collings , William Crossland , Maura Michelle Redmond , Brian Robertson
IPC分类号： H04Q11/00 , H04L12/721 , H04J14/02
CPC分类号： H04Q11/0005 , G02F1/292 , G02F2203/12 , G02F2203/18 , G03H1/0005 , G03H1/2294 , G03H2225/32 , H04J14/0212 , H04L45/62 , H04Q2011/0016
摘要： 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.
摘要翻译：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。

6. 发明授权

US10067471B2 Apparatus and methods for light beam routing in telecommunication 有权
公开(公告)号：US10067471B2
公开(公告)日：2018-09-04
申请号：US15384280
申请日：2016-12-19
申请人： Cambridge Enterprise Limited
发明人： Neil Collings , Andreas Georgiou , Maura Michelle Redmond , Brian Robertson , Jinsong Liu , William Crossland , John Richard Moore , Daping Chu
IPC分类号： G03H1/08 , H04Q11/00 , G03H1/22 , G02B5/32 , G02B6/35 , G02F1/1362
摘要： 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.

7. 发明授权

US10856057B2 Optical device and methods 有权
公开(公告)号：US10856057B2
公开(公告)日：2020-12-01
申请号：US15435181
申请日：2017-02-16
申请人： CAMBRIDGE ENTERPRISE LIMITED
发明人： Daping Chu , Brian Robertson
IPC分类号： G02F1/29 , G02B26/00 , G02F1/03 , G02F1/09 , G02B27/10 , H04Q11/00 , B82Y20/00 , G02F1/07 , H04J14/02 , G02B6/35 , G02F1/31 , G02B27/01 , G02B27/09 , G02B5/18 , G02B5/32 , G02B5/20 , G02F1/1362 , G02B1/11 , G02F1/137
摘要： Methods and devices for manipulating optical signals. In one example, a LCOS (liquid crystal on silicon) device includes a surface bearing an anti-reflection structure. The anti-reflection structure includes i) a physical surface having a topography with features having lateral dimensions of less than 2000 nm and having an average refraction index which decreases with distance away from the surface; and ii) a configuration of the topography, averaged over lateral dimensions of greater than 2000 nm, varies with lateral position on the surface.

8. 发明授权

US10261399B2 Projection system 有权
公开(公告)号：US10261399B2
公开(公告)日：2019-04-16
申请号：US15859023
申请日：2017-12-29
申请人： Huawei Technologies Co., Ltd. , Cambridge Enterprise Limited
发明人： Zhi Huang , Brian Robertson , Daping Chu
IPC分类号： G03B21/56 , H04N9/31 , G03B21/10 , G03B21/28 , G03B21/60 , G03B21/13
摘要： A projection system relates to the field of display technologies, and includes a projection unit, a screen unit, an outer frame, and a support structure component. The support structure component is configured to securely connect the screen unit to the outer frame. The support structure component is located on a light incident side of the screen unit. The support structure component includes a light transmission part and at least one connecting part. The light transmission part is securely connected to the screen unit. The light transmission part is configured to enable light rays emitted by the projection unit and irradiating the light transmission part to pass through. The at least one connecting part is located out of propagation paths of light rays emitted by the projection unit. The at least one connecting part is configured to securely connect the light transmission part to the outer frame.

9. 发明授权

US09774930B2 Optical device and methods 有权
公开(公告)号：US09774930B2
公开(公告)日：2017-09-26
申请号：US14374628
申请日：2013-01-23
申请人： CAMBRIDGE ENTERPRISE LIMITED
发明人： Daping Chu , Neil Collings , John Richard Moore , Mykhaylo Pivnenko , Brian Robertson
IPC分类号： G02F1/07 , G02F1/03 , G02B5/18 , H04Q11/00 , B82Y20/00 , G02F1/29 , H04J14/02 , G02B27/01 , G02B27/09 , G02B5/32 , G02B5/20 , G02F1/1362 , G02B1/11 , G02F1/137
CPC分类号： H04Q11/0005 , B82Y20/00 , G02B1/11 , G02B5/1828 , G02B5/1861 , G02B5/203 , G02B5/32 , G02B6/3512 , G02B6/3524 , G02B6/3534 , G02B6/3592 , G02B27/0172 , G02B27/0927 , G02B27/0944 , G02F1/03 , G02F1/0338 , G02F1/07 , G02F1/136277 , G02F1/292 , G02F1/293 , G02F1/31 , G02F2001/13793 , G02F2201/12 , G02F2201/38 , G02F2203/06 , H04J14/0212 , H04J14/0221 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0035
摘要： We describe methods and devices for manipulating optical signals. A method of manipulating an optical signal comprises providing a device (100) comprising a layer (106) of blue phase liquid crystal in the path of the optical signal; and applying a dynamically varying spatial pattern of voltages across the layer (106) of blue phase liquid crystal, thereby causing the refractive index of the layer (106) of blue phase liquid crystal to vary according the dynamically varying spatial pattern.

10. 发明申请

US20170230132A1 OPTICAL DEVICE AND METHODS 审中-公开
公开(公告)号：US20170230132A1
公开(公告)日：2017-08-10
申请号：US15435181
申请日：2017-02-16
申请人： CAMBRIDGE ENTERPRISE LIMITED
发明人： Daping Chu , Brian Robertson
IPC分类号： H04J14/02 , G02F1/29 , G02F1/31 , H04Q11/00 , G02B6/35
CPC分类号： H04Q11/0005 , B82Y20/00 , G02B1/11 , G02B5/1828 , G02B5/1861 , G02B5/203 , G02B5/32 , G02B6/3512 , G02B6/3524 , G02B6/3534 , G02B6/3592 , G02B27/0172 , G02B27/0927 , G02B27/0944 , G02F1/03 , G02F1/0338 , G02F1/07 , G02F1/136277 , G02F1/292 , G02F1/293 , G02F1/31 , G02F2001/13793 , G02F2201/12 , G02F2201/38 , G02F2203/06 , H04J14/0212 , H04J14/0221 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0035
摘要： Methods and devices for manipulating optical signals. In one example, a LCOS (liquid crystal on silicon) device includes a surface bearing an anti-reflection structure. The anti-reflection structure includes i) a physical surface having a topography with features having lateral dimensions of less than 2000 nm and having an average refraction index which decreases with distance away from the surface; and ii) a configuration of the topography, averaged over lateral dimensions of greater than 2000 nm, varies with lateral position on the surface.

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