DE69028497D1 - Polarisierendes Beleuchtungsgerät - Google Patents

Polarisierendes Beleuchtungsgerät

Info

Publication number
DE69028497D1
DE69028497D1 DE69028497T DE69028497T DE69028497D1 DE 69028497 D1 DE69028497 D1 DE 69028497D1 DE 69028497 T DE69028497 T DE 69028497T DE 69028497 T DE69028497 T DE 69028497T DE 69028497 D1 DE69028497 D1 DE 69028497D1
Authority
DE
Germany
Prior art keywords
lighting device
polarizing lighting
polarizing
lighting
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
DE69028497T
Other languages
English (en)
Other versions
DE69028497T2 (de
Inventor
Hideaki Mitsutake
Nobuo Minoura
Kazumi Kimura
Katsumi Kurematsu
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.)
Canon Inc
Original Assignee
Canon 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
Priority claimed from JP1330033A external-priority patent/JP2752751B2/ja
Priority claimed from JP2192677A external-priority patent/JPH0478816A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69028497D1 publication Critical patent/DE69028497D1/de
Publication of DE69028497T2 publication Critical patent/DE69028497T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3167—Modulator illumination systems for polarizing the light beam
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133536—Reflective polarizers
    • 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
    • G02F1/133528—Polarisers
    • G02F1/13355—Polarising beam splitters [PBS]
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
DE69028497T 1989-12-20 1990-12-19 Polarisierendes Beleuchtungsgerät Expired - Fee Related DE69028497T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1330033A JP2752751B2 (ja) 1989-12-20 1989-12-20 表示装置
JP2192677A JPH0478816A (ja) 1990-07-20 1990-07-20 偏光照明装置及び該偏光照明装置を備える投写型表示装置

Publications (2)

Publication Number Publication Date
DE69028497D1 true DE69028497D1 (de) 1996-10-17
DE69028497T2 DE69028497T2 (de) 1997-02-06

Family

ID=26507467

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69028497T Expired - Fee Related DE69028497T2 (de) 1989-12-20 1990-12-19 Polarisierendes Beleuchtungsgerät

Country Status (3)

Country Link
US (1) US5446510A (de)
EP (1) EP0434041B1 (de)
DE (1) DE69028497T2 (de)

Families Citing this family (60)

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US5300942A (en) * 1987-12-31 1994-04-05 Projectavision Incorporated High efficiency light valve projection system with decreased perception of spaces between pixels and/or hines
JPH04230705A (ja) * 1990-05-18 1992-08-19 Canon Inc 偏光変換装置、該偏光変換装置を備えた偏光照明装置および該偏光照明装置を有する投写型表示装置
DE4025136A1 (de) * 1990-08-08 1992-02-13 Grundig Emv Projektionsgeraet fuer die grossbildprojektion
GB9204798D0 (en) * 1992-03-05 1992-04-15 Rank Brimar Ltd Spatial light modulator system
JPH05257085A (ja) * 1992-03-11 1993-10-08 Nikon Corp 照明光学系
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US5303083A (en) * 1992-08-26 1994-04-12 Hughes Aircraft Company Polarized light recovery
JPH0694902A (ja) * 1992-09-11 1994-04-08 Canon Inc 光学素子，光源，液晶光学素子，偏光照明装置，照明光学装置，偏光分離素子，偏光素子，画像投影装置および立体像表示方法
FR2696246B1 (fr) * 1992-09-28 1994-11-04 Sextant Avionique Procédé et dispositif de projection d'une image en couleur résultant d'une modulation par valves optiques.
DE4307178C2 (de) * 1993-03-08 1996-09-19 Lueder Ernst Vorrichtung und Verfahren zur Polarisation von Licht
JP3254680B2 (ja) * 1993-03-16 2002-02-12 セイコーエプソン株式会社 投写型表示装置
EP0704137B1 (de) * 1993-03-31 1999-01-20 Hughes-Jvc Technology Corporation Farbprojektionssystem mit einer einzigen projektionslinse
DE4435450A1 (de) * 1993-10-04 1995-04-06 Matsushita Electric Ind Co Ltd Flüssigkristalleinheit und Projektionsanzeige unter Verwendung einer Flüssigkristalleinheit
US5576854A (en) * 1993-11-12 1996-11-19 Hughes-Jvc Technology Corporation Liquid crystal light valve projector with improved contrast ratio and with 0.27 wavelength compensation for birefringence in the liquid crystal light valve
JPH07294850A (ja) * 1994-04-22 1995-11-10 Canon Inc 照明装置及びそれを用いた投影装置
DE69535145T2 (de) * 1994-06-01 2007-06-14 Koninklijke Philips Electronics N.V. Beleuchtungsgerät mit hohem wirkungsgrad und dieses gerät enthaltende projektionseinrichtung
US5729306A (en) * 1994-09-30 1998-03-17 Sharp Kabushiki Kaisha Light splitting and synthesizing device and liquid crystal display apparatus including the same
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US5594591A (en) * 1995-02-01 1997-01-14 Pioneer Electronic Corporation Prism system and a liquid crystal projection device
DE19607510C2 (de) * 1995-02-28 2001-11-29 Asahi Optical Co Ltd LCD-Projektor und Verfahren zum Teilen eines Lichtflusses
KR0174852B1 (ko) * 1995-04-18 1999-03-20 김주용 패널식 액정 전면 투영기용 광편향프리즘을 이용한 개선 광학계
JPH09114022A (ja) * 1995-10-12 1997-05-02 Texas Instr Inc <Ti> プロジエクタ装置
JPH09230321A (ja) * 1996-02-20 1997-09-05 Denso Corp カラー液晶表示装置
US5995284A (en) * 1996-03-29 1999-11-30 3M Innovative Properties Company Polarized illumination system for LCD projector
US5975703A (en) * 1996-09-30 1999-11-02 Digital Optics International Image projection system
US6005655A (en) * 1996-10-31 1999-12-21 Minolta Co., Ltd. Projector capable of projecting polarized illumination light
JP3653907B2 (ja) * 1996-12-24 2005-06-02 ソニー株式会社 プロジェクタ
US6257726B1 (en) * 1997-02-13 2001-07-10 Canon Kabushiki Kaisha Illuminating apparatus and projecting apparatus
JP3637743B2 (ja) * 1997-10-15 2005-04-13 ソニー株式会社 投射型液晶表示装置
US6132047A (en) * 1998-02-18 2000-10-17 Seiko Epson Corporation Polarized light illumination device and projector
JP3661392B2 (ja) * 1998-02-18 2005-06-15 セイコーエプソン株式会社 偏光照明装置および投写型表示装置
US5900976A (en) * 1998-02-20 1999-05-04 Displaytech, Inc. Display system including a polarizing beam splitter
EP0986771B1 (de) * 1998-04-02 2005-05-11 Koninklijke Philips Electronics N.V. Bildprojektionssystem mit verbesserter helligkeit
US6407862B2 (en) 1999-05-14 2002-06-18 3M Innovative Properties Company Electronic projection system with polymeric film optical components
KR100609060B1 (ko) * 1999-07-21 2006-08-09 삼성전자주식회사 광투사형 디스플레이장치의 편광변환소자
US7047281B1 (en) 2000-08-08 2006-05-16 Fineground Networks Method and system for accelerating the delivery of content in a networked environment
WO2002012997A1 (en) 2000-08-08 2002-02-14 Fineground Networks Method and system for parameterized web documents
US7027224B2 (en) 2001-01-31 2006-04-11 Sharp Laboratories Of America, Inc. Wave plate mounting
US7310687B2 (en) 2001-03-23 2007-12-18 Cisco Technology, Inc. Methods and systems for managing class-based condensation
KR100534575B1 (ko) 2001-04-24 2005-12-07 삼성에스디아이 주식회사 프로젝션시스템의 광전환장치
US7343396B2 (en) 2002-06-20 2008-03-11 Fineground Networks Precomputation of web documents
TWI289708B (en) 2002-12-25 2007-11-11 Qualcomm Mems Technologies Inc Optical interference type color display
KR100520604B1 (ko) * 2003-01-15 2005-10-10 삼성전자주식회사 파장분할다중방식 광원 및 이를 이용한 수동형 광 가입자망시스템
WO2005029155A1 (en) * 2003-09-19 2005-03-31 Koninklijke Philips Electronics, N.V. Efficient and compact polarization conversion method
US9032096B2 (en) 2003-12-17 2015-05-12 Cisco Technology, Inc. Reducing the impact of network latency on application performance
US7342705B2 (en) 2004-02-03 2008-03-11 Idc, Llc Spatial light modulator with integrated optical compensation structure
US7630123B2 (en) 2004-09-27 2009-12-08 Qualcomm Mems Technologies, Inc. Method and device for compensating for color shift as a function of angle of view
JP2006337791A (ja) * 2005-06-03 2006-12-14 Hitachi Ltd 投射型映像表示装置、それに用いる光学ユニット及び偏光分離用部材
EP1943551A2 (de) 2006-10-06 2008-07-16 Qualcomm Mems Technologies, Inc. Lichtführung
JP2010510530A (ja) 2006-10-06 2010-04-02 クォルコム・メムズ・テクノロジーズ・インコーポレーテッド 照明装置に統合される光学損失構造
WO2008045463A2 (en) 2006-10-10 2008-04-17 Qualcomm Mems Technologies, Inc. Display device with diffractive optics
US8068710B2 (en) 2007-12-07 2011-11-29 Qualcomm Mems Technologies, Inc. Decoupled holographic film and diffuser
US8721149B2 (en) 2008-01-30 2014-05-13 Qualcomm Mems Technologies, Inc. Illumination device having a tapered light guide
WO2009099547A2 (en) 2008-01-30 2009-08-13 Digital Optics International, Llc Thin illumination system
EP2435865A1 (de) 2009-05-29 2012-04-04 Qualcomm Mems Technologies, Inc. Beleuchtungsvorrichtungen und herstellungsverfahren dafür
US8902484B2 (en) 2010-12-15 2014-12-02 Qualcomm Mems Technologies, Inc. Holographic brightness enhancement film
CN105549215A (zh) * 2015-12-15 2016-05-04 中国电子科技集团公司第四十一研究所 近红外照明光源转换线偏振光的方法及其专用装置
WO2017217189A1 (ja) * 2016-06-17 2017-12-21 オリンパス株式会社 対物光学系及びそれを備えた内視鏡装置
CN106405933B (zh) * 2016-10-31 2019-08-13 京东方科技集团股份有限公司 背光模组和液晶显示装置
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US5387953A (en) * 1990-12-27 1995-02-07 Canon Kabushiki Kaisha Polarization illumination device and projector having the same
US5381278A (en) * 1991-05-07 1995-01-10 Canon Kabushiki Kaisha Polarization conversion unit, polarization illumination apparatus provided with the unit, and projector provided with the apparatus

Also Published As

Publication number Publication date
EP0434041A1 (de) 1991-06-26
EP0434041B1 (de) 1996-09-11
US5446510A (en) 1995-08-29
DE69028497T2 (de) 1997-02-06

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