公开(公告)号：US20150049267A1

公开(公告)日：2015-02-19

申请号：US14344680

申请日：2012-09-06

Applicant: Cambridge Enterprise Limited ,  Dow Corning Corporation

Inventor： William Alden Crossland ,  Anthony Bernard Davey ,  John Richard Moore ,  Daping Chu ,  Jonathan Paul Hannington ,  Terry Clapp

IPC: G02F1/137 ,  G02F1/1337 ,  G02F1/133

CPC classification number: G02F1/13781 ,  C09K19/02 ,  C09K19/408 ,  G02F1/13306 ,  G02F1/133788 ,  G09G3/2007 ,  G09G3/2081 ,  G09G3/3629 ,  G09G3/3681 ,  G09G3/3692 ,  G09G2300/0473 ,  G09G2310/063 ,  G09G2310/065 ,  G09G2320/041 ,  G09G2380/14

Abstract: In a method of operating a liquid crystal device having a liquid crystal composition with smectic-A properties, a first waveform is applied to optically clear the device so that it is substantially transparent to visible light and a second waveform is applied to disorder the material of the liquid crystal composition to afford a strongly light-scattering state. The first waveform has a higher frequency than the second, waveform, and the method comprises applying a modified waveform to partially clear at least a portion of the device from the light-scattering state

Abstract translation: 在具有具有近晶A性质的液晶组合物的液晶装置的操作方法中，施加第一波形以光学地清除该装置，使得其对可见光基本上是透明的，并且施加第二波形以使材料 液晶组合物提供强烈的光散射状态。 第一波形具有比第二波形更高的频率，并且该方法包括施加修改的波形以从光散射状态部分地清除器件的至少一部分

公开(公告)号：US20140363162A1

公开(公告)日：2014-12-11

申请号：US14374628

申请日：2013-01-23

Applicant: CAMBRIDGE ENTERPRISE LIMITED

Inventor： Daping Chu ,  Neil Collings ,  John Richard Moore ,  Mykhaylo Pivnenko ,  Brian Robertson

IPC: H04Q11/00 ,  H04J14/02 ,  G02F1/03

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09774930B2

公开(公告)日：2017-09-26

申请号：US14374628

申请日：2013-01-23

Applicant: CAMBRIDGE ENTERPRISE LIMITED

Inventor： Daping Chu ,  Neil Collings ,  John Richard Moore ,  Mykhaylo Pivnenko ,  Brian Robertson

IPC: 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 classification number: 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

Abstract: 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.

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

IPC: G03H1/08 ,  H04Q11/00 ,  G02B5/32 ,  G03H1/22 ,  G02F1/1362 ,  G02B6/35

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.

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

IPC: G03H1/08 ,  H04Q11/00 ,  G03H1/22 ,  G02B5/32 ,  G02B6/35 ,  G02F1/1362

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.