DE69227221D1 - Räumlicher Lichtmodulator mit Flüssigkristall - Google Patents

Räumlicher Lichtmodulator mit Flüssigkristall

Info

Publication number
DE69227221D1
DE69227221D1 DE69227221T DE69227221T DE69227221D1 DE 69227221 D1 DE69227221 D1 DE 69227221D1 DE 69227221 T DE69227221 T DE 69227221T DE 69227221 T DE69227221 T DE 69227221T DE 69227221 D1 DE69227221 D1 DE 69227221D1
Authority
DE
Germany
Prior art keywords
liquid crystal
light modulator
spatial light
spatial
modulator
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
DE69227221T
Other languages
English (en)
Other versions
DE69227221T2 (de
Inventor
Naoki Kato
Shuhei Yamamoto
Teruo Ebihara
Rieko Sekura
Junko Yamanaka
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Application granted granted Critical
Publication of DE69227221D1 publication Critical patent/DE69227221D1/de
Publication of DE69227221T2 publication Critical patent/DE69227221T2/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 
    • G02F1/13—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
    • G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/141—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent using ferroelectric liquid crystals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
DE69227221T 1991-07-08 1992-07-01 Räumlicher Lichtmodulator mit Flüssigkristall Expired - Fee Related DE69227221T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3167106A JP3010392B2 (ja) 1991-07-08 1991-07-08 空間光変調器とその駆動方法

Publications (2)

Publication Number Publication Date
DE69227221D1 true DE69227221D1 (de) 1998-11-12
DE69227221T2 DE69227221T2 (de) 1999-03-18

Family

ID=15843542

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69227221T Expired - Fee Related DE69227221T2 (de) 1991-07-08 1992-07-01 Räumlicher Lichtmodulator mit Flüssigkristall

Country Status (4)

Country Link
US (1) US5420709A (de)
EP (1) EP0525424B1 (de)
JP (1) JP3010392B2 (de)
DE (1) DE69227221T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2796596B2 (ja) * 1992-07-20 1998-09-10 セイコーインスツルメンツ株式会社 空間光変調器の駆動方法及び空間光変調器
JPH07120722A (ja) * 1993-06-30 1995-05-12 Sharp Corp 液晶表示素子およびその駆動方法
DE19616323A1 (de) * 1996-04-24 1997-10-30 Deutsche Telekom Ag Vorrichtung zur lokalen Abschwächung der Lichtintensität
JP2970542B2 (ja) * 1996-07-16 1999-11-02 富士ゼロックス株式会社 画像記録装置および方法ならびに画像記録再生装置および方法
DE19815337C2 (de) 1998-04-06 2001-07-05 Deutsche Telekom Ag Vorrichtung zur lokalen Abschwächung der Lichtintensität im Sehfeld einer lichtempfindlichen Beobachtungseinrichtung
US6686994B2 (en) * 2002-03-28 2004-02-03 Kla-Tencor Technologies Corporation UV compatible programmable spatial filter
US6686995B2 (en) * 2002-03-28 2004-02-03 Kla-Tencor Technologies Corporation Two-dimensional UV compatible programmable spatial filter
DE10219908A1 (de) * 2002-05-03 2003-11-27 Epcos Ag Elektrode und ein Verfahren zu deren Herstellung
GB0223396D0 (en) 2002-10-09 2002-11-13 Holographic Imaging Llc An OASLM and a method and apparatus for driving an OASLM
US20070131851A1 (en) * 2005-12-14 2007-06-14 Nevine Holtz Polarimetric detection of road signs
WO2008094950A1 (en) * 2007-01-30 2008-08-07 F. Poszat Hu, L.L.C. Spatial light modulator
ATE528918T1 (de) 2007-01-30 2011-10-15 Poszat Hu L L C F Bildübertragungsvorrichtung
CN101589337B (zh) 2007-02-05 2011-06-15 F.珀斯扎特胡有限公司 全息成像系统
US9933685B2 (en) 2013-08-05 2018-04-03 The Hong Kong University Of Science And Technology Switchable liquid crystal fresnel lens

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615395A (en) * 1966-09-28 1971-10-26 Canon Camera Co Electrostatic and electrophotographic variable contrast image-forming methods
FR2171518A5 (de) * 1972-02-03 1973-09-21 Labo Electronique Physique
US4063222A (en) * 1976-01-21 1977-12-13 Xerox Corporation Selective erasure of image recording devices
US4608327A (en) * 1983-07-21 1986-08-26 Minolta Camera Kabushiki Kaisha Method of forming composite images
US4643533A (en) * 1985-04-11 1987-02-17 The United States Of America As Represented By The Secretary Of The Air Force Differentiating spatial light modulator
US5005953A (en) * 1987-10-06 1991-04-09 Canon Kabushiki Kaisha High contrast liquid crystal element
JPH02143778A (ja) * 1988-11-25 1990-06-01 Victor Co Of Japan Ltd 電荷潜像の読取り方式
JPH02260198A (ja) * 1989-03-31 1990-10-22 Tokyo Noukou Univ 液晶電気光学メモリーデバイス

Also Published As

Publication number Publication date
US5420709A (en) 1995-05-30
JPH0511282A (ja) 1993-01-19
EP0525424A3 (en) 1993-10-13
JP3010392B2 (ja) 2000-02-21
DE69227221T2 (de) 1999-03-18
EP0525424A2 (de) 1993-02-03
EP0525424B1 (de) 1998-10-07

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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