DE69718782T2 - Ein abstimmbarer filter - Google Patents

Ein abstimmbarer filter

Info

Publication number
DE69718782T2
DE69718782T2 DE69718782T DE69718782T DE69718782T2 DE 69718782 T2 DE69718782 T2 DE 69718782T2 DE 69718782 T DE69718782 T DE 69718782T DE 69718782 T DE69718782 T DE 69718782T DE 69718782 T2 DE69718782 T2 DE 69718782T2
Authority
DE
Germany
Prior art keywords
tunable filter
tunable
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69718782T
Other languages
English (en)
Other versions
DE69718782D1 (de
Inventor
Loder-Defence Research A Lewis
Robert-Defence Research Mason
Charles-Defence Research Sage
Richard Simon Blacker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qinetiq Ltd
Original Assignee
Qinetiq Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of DE69718782D1 publication Critical patent/DE69718782D1/de
Application granted granted Critical
Publication of DE69718782T2 publication Critical patent/DE69718782T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference
    • G02F1/216—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference using liquid crystals, e.g. liquid crystal Fabry-Perot filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553—Reflecting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference
    • G02F1/213—Fabry-Perot type

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Dispersion Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
DE69718782T 1996-04-25 1997-04-09 Ein abstimmbarer filter Expired - Fee Related DE69718782T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9608636.8A GB9608636D0 (en) 1996-04-25 1996-04-25 A tuneable filter
PCT/GB1997/000980 WO1997040420A1 (en) 1996-04-25 1997-04-09 A tuneable filter

Publications (2)

Publication Number Publication Date
DE69718782D1 DE69718782D1 (de) 2003-03-06
DE69718782T2 true DE69718782T2 (de) 2003-10-23

Family

ID=10792671

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69718782T Expired - Fee Related DE69718782T2 (de) 1996-04-25 1997-04-09 Ein abstimmbarer filter

Country Status (5)

Country Link
US (1) US6271899B1 (de)
EP (1) EP0895612B1 (de)
DE (1) DE69718782T2 (de)
GB (2) GB9608636D0 (de)
WO (1) WO1997040420A1 (de)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6545739B1 (en) * 1997-09-19 2003-04-08 Nippon Telegraph And Telephone Corporation Tunable wavelength filter using nano-sized droplets of liquid crystal dispersed in a polymer
AU3859000A (en) * 1999-02-19 2000-09-04 New Focus, Inc. Tunable laser transmitter with internal wavelength grid generators
GB9909323D0 (en) * 1999-04-22 1999-06-16 Thomas Swan & Company Limited Phase modulator
FR2799012B1 (fr) * 1999-09-03 2001-12-21 Serge Blondeau Lunettes a composite electro optique permettant une commutation alternee transparence/opacite
US6490381B1 (en) 2000-06-01 2002-12-03 Optical Coating Laboratory, Inc. Fabry-Perot optical switch
US6954253B2 (en) * 2000-07-25 2005-10-11 Scientific Solutions, Inc. Optical multiplexer and cross-switch using etched liquid crystal fabry-perot etalons
GB0125996D0 (en) * 2001-10-30 2001-12-19 Qinetiq Ltd Tunable filter
US7327434B1 (en) 2002-05-08 2008-02-05 University Of Central Florida Research Foundation, Inc. Tunable electronic lens and prisms using inhomogeneous nano scale liquid crystal droplets
US6864951B1 (en) * 2002-05-08 2005-03-08 University Of Central Florida Tunable electronic lens and prisms using inhomogeneous nano scale liquid crystal droplets
US6888661B1 (en) 2002-06-13 2005-05-03 Cheetah Omni, Llc Square filter function tunable optical devices
US6844904B2 (en) * 2002-12-07 2005-01-18 Cubic Corporation Fast PDLC device
US20060007386A1 (en) * 2003-02-21 2006-01-12 Extellus Usa Flat top tunable filter with integrated detector
US20110043742A1 (en) * 2003-02-21 2011-02-24 Cavanaugh Shanti A Contamination prevention in liquid crystal cells
US7002646B2 (en) * 2003-03-17 2006-02-21 International Business Machines Corporation Tunable thin film optical devices and fabrication methods for tunable thin film optical devices
US6950173B1 (en) 2003-04-08 2005-09-27 Science Applications International Corporation Optimizing performance parameters for switchable polymer dispersed liquid crystal optical elements
FR2857159A1 (fr) * 2003-07-03 2005-01-07 Optogone Sa Photodetecteur a cavite verticale resonnante, matrice et systeme de telecommunication correspondant.
EP2033038B1 (de) * 2006-06-01 2011-08-31 Light Resonance Technologies, LLC Lichtfilter/-modulator und array von filtern/modulatoren
US20090091644A1 (en) * 2007-10-05 2009-04-09 Mackey Jeffrey L Metallic nanostructure color filter array and method of making the same
EP2231760A1 (de) * 2007-12-28 2010-09-29 Dow Global Technologies Inc. Kleinmassstäbliche funktionelle materialien
WO2009085083A1 (en) * 2007-12-28 2009-07-09 Dow Global Technologies Inc. Phase compensation film comprising polymer nanoparticles imbibed with liquid crystal material
CA2731778C (en) * 2008-07-23 2017-04-25 Opalux Incorporated Tunable photonic crystal composition
US7837897B2 (en) * 2009-04-27 2010-11-23 Polytronix, Inc. Polymeric dispersed liquid crystal light shutter device
US9188820B1 (en) * 2009-06-12 2015-11-17 The United States Of America As Represented By The Secretary Of The Air Force Autonomously tuning photoconductive and photovoltaic light valves
FR2961916B1 (fr) 2010-06-25 2013-04-12 Saint Gobain Vitrage feuillete a diffusion variable par cristaux liquides, son procede de fabrication et dispositif pour sa fabrication
JP5253461B2 (ja) * 2010-07-26 2013-07-31 株式会社東芝 表示装置
WO2012057558A2 (ko) * 2010-10-29 2012-05-03 삼성전자주식회사 전기 신호를 이용하여 선택적으로 가시광선과 적외선을 투과하는 필터
KR101925137B1 (ko) 2010-10-29 2018-12-06 삼성전자주식회사 전기 신호를 이용하여 선택적으로 가시광선과 적외선을 투과하는 필터
EP2450734A1 (de) * 2010-11-03 2012-05-09 Sony Ericsson Mobile Communications AB Optische Filteranordnung und Anpassungsverfahren dafür
JP2012155158A (ja) * 2011-01-26 2012-08-16 Toshiba Corp 表示装置
EP2551635A1 (de) * 2011-07-26 2013-01-30 Hexagon Technology Center GmbH Optisches Messsystem mit Filtereinheit zur Extraktion elektromagnetischer Strahlung
FR2985327B1 (fr) 2011-12-29 2013-12-20 Saint Gobain Vitrage multiple a diffusion variable par cristaux liquides, son procede de fabrication
FR2985328B1 (fr) 2011-12-29 2013-12-20 Saint Gobain Vitrage multiple a diffusion variable par cristaux liquides
FR2991786B1 (fr) 2012-06-08 2014-06-20 Saint Gobain Ecran de projection fonctionnant en reflexion comprenant un systeme a diffusion lumineuse variable
FR2992434B1 (fr) 2012-06-22 2014-06-13 Saint Gobain Procede de fabrication d'un vitrage multiple a diffusion variable par couche pdlc, un tel vitrage multiple a couche pdlc
FR2997516B1 (fr) 2012-10-31 2015-11-13 Saint Gobain Vitrage comprenant un systeme a diffusion lumineuse variable et une paire d'elements absorbants
FR2997770B1 (fr) 2012-11-07 2015-11-20 Saint Gobain Support electroconducteur pour vitrage a diffusion variable par cristaux liquides, et un tel vitrage
US10190363B2 (en) * 2013-04-10 2019-01-29 Cardinal Ig Company Multilayer film with electrically switchable optical properties
US20180311937A1 (en) 2015-06-30 2018-11-01 Gauzy Ltd Multiple and single layers liquid crystal dispersion devices for common and direct glazing applications and methods thereof
US9998681B2 (en) 2016-06-28 2018-06-12 Gopro, Inc. Electronic iris for a camera
US10520787B2 (en) 2016-11-21 2019-12-31 Gopro, Inc. Tunable polymer dispersed liquid crystal grin lens
KR102557951B1 (ko) * 2018-08-27 2023-07-21 삼성전자주식회사 디스플레이 장치
US11314137B2 (en) * 2020-09-23 2022-04-26 Dell Products L.P. Systems and methods for implementing a display device with side lighting

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8621438D0 (en) * 1986-09-05 1986-10-15 Secr Defence Electro-optic device
US4869847A (en) * 1987-03-16 1989-09-26 Hoechst Celanese Corp. Microdisperse polymer/liquid crystal composite
US5068749A (en) * 1990-08-31 1991-11-26 Bell Communications Research, Inc. Electronically tunable polarization-independent liquid crystal optical filter
EP0547077A1 (de) 1990-08-31 1993-06-23 Bell Communications Research, Inc. Abstimmbares flüssigkristall-etalonfilter
US5132824A (en) * 1990-08-31 1992-07-21 Bell Communications Research, Inc. Liquid-crystal modulator array
US5150236A (en) * 1990-08-31 1992-09-22 Bell Communications Research, Inc. Tunable liquid crystal etalon filter
JP2925064B2 (ja) * 1993-12-02 1999-07-26 矢崎総業株式会社 可変波長フィルタ

Also Published As

Publication number Publication date
EP0895612B1 (de) 2003-01-29
DE69718782D1 (de) 2003-03-06
GB9608636D0 (en) 1996-07-03
WO1997040420A1 (en) 1997-10-30
GB2326731A (en) 1998-12-30
US6271899B1 (en) 2001-08-07
GB9822286D0 (en) 1998-12-09
GB2326731B (en) 2000-07-12
EP0895612A1 (de) 1999-02-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee