DE69021418D1 - Polarisierender Strahlteiler und System für die Bildprojekion durch Lichtventile. - Google Patents

Polarisierender Strahlteiler und System für die Bildprojekion durch Lichtventile.

Info

Publication number
DE69021418D1
DE69021418D1 DE69021418T DE69021418T DE69021418D1 DE 69021418 D1 DE69021418 D1 DE 69021418D1 DE 69021418 T DE69021418 T DE 69021418T DE 69021418 T DE69021418 T DE 69021418T DE 69021418 D1 DE69021418 D1 DE 69021418D1
Authority
DE
Germany
Prior art keywords
beam splitter
image projection
polarizing beam
light valves
valves
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
DE69021418T
Other languages
English (en)
Other versions
DE69021418T2 (de
Inventor
Yoshito Miyatake
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69021418D1 publication Critical patent/DE69021418D1/de
Publication of DE69021418T2 publication Critical patent/DE69021418T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G02F1/1396—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 the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • 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
    • G02F1/1396—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 the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • G02F1/1398—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 the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell the twist being below 90°
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/02—Function characteristic reflective

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Projection Apparatus (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Polarising Elements (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
DE69021418T 1989-03-23 1990-03-20 Polarisierender Strahlteiler und System für die Bildprojekion durch Lichtventile. Expired - Fee Related DE69021418T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1070880A JPH0738050B2 (ja) 1989-03-23 1989-03-23 偏光ビームスプリッタ装置とその装置を用いたライトバルブ光学装置

Publications (2)

Publication Number Publication Date
DE69021418D1 true DE69021418D1 (de) 1995-09-14
DE69021418T2 DE69021418T2 (de) 1996-03-14

Family

ID=13444298

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69021418T Expired - Fee Related DE69021418T2 (de) 1989-03-23 1990-03-20 Polarisierender Strahlteiler und System für die Bildprojekion durch Lichtventile.

Country Status (3)

Country Link
EP (1) EP0389240B1 (de)
JP (1) JPH0738050B2 (de)
DE (1) DE69021418T2 (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016896A1 (de) * 1990-05-25 1991-11-28 Leitz Messtechnik Optische einrichtung zur wahlweisen erzielung einer durch- und auflichtbeleuchtung
JPH07113709B2 (ja) * 1990-09-21 1995-12-06 松下電器産業株式会社 投写型表示装置
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
JPH05154106A (ja) * 1991-11-29 1993-06-22 Asahi Optical Co Ltd 視線検出装置
FR2685100A1 (fr) * 1991-12-17 1993-06-18 Thomson Csf Separateur de polarisations optique et application a un systeme de visualisation.
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
JPH1164852A (ja) * 1997-08-21 1999-03-05 Hitachi Ltd 投射型液晶表示装置
GB2330422A (en) * 1997-10-17 1999-04-21 Sharp Kk Reflective liquid crystal device
US6052231A (en) * 1998-01-21 2000-04-18 International Business Machines Corporation Beam dividing elements permitting projection of an image with high contrast
US6111618A (en) * 1998-02-23 2000-08-29 Lightware, Inc. LCD projector illumination system having blue and red dichroic mirrors positioned such that blue mirror receives light before red mirror
KR100336696B1 (ko) 1999-12-08 2002-05-13 고연완 편광 분석장치 및 편광 분석방법
JP2002207213A (ja) 2001-01-11 2002-07-26 Hitachi Ltd 液晶表示素子又はそれを用いた表示装置
US6511183B2 (en) 2001-06-02 2003-01-28 Koninklijke Philips Electronics N.V. Digital image projector with oriented fixed-polarization-axis polarizing beamsplitter
JP2003222724A (ja) 2002-01-31 2003-08-08 Hitachi Ltd １／４波長板、光学ユニット、及びそれを用いた反射型液晶表示装置
JP3970055B2 (ja) 2002-02-28 2007-09-05 キヤノン株式会社 液晶表示装置
GB0211353D0 (en) * 2002-05-17 2002-06-26 Qinetiq Ltd Apparatus for redirecting radiation
JP4040484B2 (ja) * 2003-01-31 2008-01-30 キヤノン株式会社 偏光分離光学系、投射型表示光学系、投射型画像表示装置および画像表示システム
JP4422986B2 (ja) * 2003-08-22 2010-03-03 キヤノン株式会社 画像表示装置
JP4794839B2 (ja) 2004-09-17 2011-10-19 キヤノン株式会社 反射型液晶表示装置
JP4856863B2 (ja) * 2004-09-17 2012-01-18 キヤノン株式会社 投射型画像表示装置及びそれに使用される調整方法
US7626400B2 (en) 2005-02-15 2009-12-01 Walleye Technologies, Inc. Electromagnetic scanning imager
US8253619B2 (en) 2005-02-15 2012-08-28 Techtronic Power Tools Technology Limited Electromagnetic scanning imager
US8593157B2 (en) 2005-02-15 2013-11-26 Walleye Technologies, Inc. Electromagnetic scanning imager
US7357511B2 (en) 2005-03-23 2008-04-15 3M Innovative Properties Company Stress birefringence compensation in polarizing beamsplitters and systems using same
JP2007102101A (ja) 2005-10-07 2007-04-19 Canon Inc 照明光学系及びそれを有する画像投射装置
JP2007233407A (ja) * 2007-04-23 2007-09-13 Canon Inc 液晶表示装置
JP4499770B2 (ja) * 2007-09-06 2010-07-07 富士フイルム株式会社 偏光制御システム及びプロジェクタ
US8537290B2 (en) 2007-10-18 2013-09-17 Nikon Corporation Projector apparatus
JP4867888B2 (ja) * 2007-10-22 2012-02-01 株式会社ニコン プロジェクタ装置
JP4821755B2 (ja) * 2007-10-18 2011-11-24 株式会社ニコン プロジェクタ装置
JP5084041B2 (ja) * 2008-06-03 2012-11-28 富士フイルム株式会社 投射型表示装置
WO2010060143A1 (en) * 2008-11-26 2010-06-03 Digislide Holdings Limited A compact critical imaging optical system for an lcd or lcos projector
JP5767433B2 (ja) 2009-07-31 2015-08-19 キヤノン株式会社 投射型画像表示装置
JP5312426B2 (ja) * 2010-10-18 2013-10-09 キヤノン株式会社 反射型液晶表示装置
JP4984005B2 (ja) * 2011-11-10 2012-07-25 株式会社ニコン プロジェクタ装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497283A (en) * 1966-08-24 1970-02-24 Bausch & Lomb Color selection polarizing beam splitter
US4464018A (en) * 1981-12-28 1984-08-07 Hughes Aircraft Company Liquid crystal light valve image projection system with color selective prepolarization and blue mirror
JPS6113885A (ja) * 1984-06-29 1986-01-22 Sony Corp 投射型画像表示装置
US4723077A (en) * 1985-12-06 1988-02-02 Hughes Aircraft Company Dual liquid crystal light valve based visible-to-infrared dynamic image converter system

Also Published As

Publication number Publication date
DE69021418T2 (de) 1996-03-14
EP0389240A2 (de) 1990-09-26
JPH02250026A (ja) 1990-10-05
EP0389240B1 (de) 1995-08-09
JPH0738050B2 (ja) 1995-04-26
EP0389240A3 (de) 1991-03-06

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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