KR900010448A - Lcd디스플레이 시스템용 조명 시스템 - Google Patents

Lcd디스플레이 시스템용 조명 시스템 Download PDF

Info

Publication number
KR900010448A
KR900010448A KR1019890019213A KR890019213A KR900010448A KR 900010448 A KR900010448 A KR 900010448A KR 1019890019213 A KR1019890019213 A KR 1019890019213A KR 890019213 A KR890019213 A KR 890019213A KR 900010448 A KR900010448 A KR 900010448A
Authority
KR
South Korea
Prior art keywords
prism
optical system
subbeams
subbeam
polarization
Prior art date
Application number
KR1019890019213A
Other languages
English (en)
Other versions
KR0152982B1 (ko
Inventor
포러 골든버그 질
다니엘 에스킨 조슈아
Original Assignee
프레데릭 얀 스피트
엔. 브이. 필립스 글로아이람 펜파브리켄
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 프레데릭 얀 스피트, 엔. 브이. 필립스 글로아이람 펜파브리켄 filed Critical 프레데릭 얀 스피트
Publication of KR900010448A publication Critical patent/KR900010448A/ko
Application granted granted Critical
Publication of KR0152982B1 publication Critical patent/KR0152982B1/ko

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
    • 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
    • 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
    • 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
    • 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]

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

내용 없음

Description

LCD디스플레이 시스템용 조명 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 제1광빔과 그리고 제1광빔 방향으로 편광이 전환되는 제2광빔을 결합시키는 프리즘의 기하학 형태를 예시한 도면, 제2도는 LCD 투영 텔레비젼 시스템용 조명 시스템을 형성하는 편광빔 분광기 및 반사기와 관계하여 결합 프리즘을 예시한 도면, 제3도는 시스템의 효율을 극대화할 수 있도록 광을 분광시키고, 반사시키고 그리고 조합시키는 요소들이 두개의 인접하는 프리즘과 결합된 조명 시스템에 대한 제2실시예를 예시한 도면.

Claims (11)

  1. 광빔을 직교 편광되는 두개의 서브빔으로 분광시키고 다시 상기 두개의 서브빔을 재결합시키며, 상기 광빔으로부터 각각 선형으로 편광되고 편광 방향이 서로 직교하는 제1 및 제2서브빔을 얻는 수단과 상기 서브빔 중 한 서브빔의 편광 방향을 90°로 회전시키는 수단을 구비하는 광학 시스템에 있어서, 최소한 제1, 제2 및 제3면을 포함하는 프리즘 수단과; 상기 제1 및 제2편광 서브빔을 상기 프리즘 수단쪽으로 향하게 하는 수단을 구비하며, 상기 제1수단은 상기 제1서브빔을 상기 프리즘 수단의 상기 제2면쪽으로 향하게 하여, 상기 제1서브빔이 상기 제2면으로부터 완전 내부 반사되어 상기 프리즘 수단의 상기 제2면쪽으로 향하게 되고, 상기 제3면에서 상기 제1서브빔이 상기 프리즘 수단을 출사하며, 상기 제2수단이 상기 제2서브빔을 상기 편광 회전 수단을 통해 상기 프리즘 수단의 상기 제2면쪽으로 향하게 하여 상기 제2서브빔이 상기 프리즘 수단내로 굴절되고 상기 제3면쪽으로 향하게 되어 있어 상기 제3면에서 상기 제2서브빔이 상기 프리즘 수단을 출사하도록 된 것을 특징으로하는 광학 시스템.
  2. 제1항에 있어서, 상기 제1 및 제2방향 설정 수단이 프리즘의 면을 구비하는 것을 특징으로 하는 광학 시스템.
  3. 제1항에 있어서, 상기 제1 및 제2방향 설정 수단이 거울을 구비하는 것을 특징으로 하는 광학 시스템.
  4. 제1항에 있어서, 상기 제1방향 설정 수단 및 상기 프리즘 수단이 단일 프리즘을 구비하는 것을 특징으로 하는 광학 시스템.
  5. 제1항에 있어서, 상기 제2방향 설정 수단이 최소한 제1 및 제2면을 갖는 프리즘을 구비하고 상기 프리즘의 상기 제1면이 상기 제2방향 설정 수단으로써의 기능을 하는 것을 특징으로 하는 광학 시스템.
  6. 제5항에 있어서, 상기 프리즘의 상기 제2면상에 상기 편광 회전 수단이 놓인 것을 특징으로 하는 광학 시스템.
  7. 제1항에 있어서, 상기 제1 및 제2서브빔을 얻는 수단이 편광빔 분광기를 구비하는 것을 특징으로 하는 광학 시스템.
  8. 제1항에 있어서, 상기 편광을 회전시키는 상기 수단이 1/2 파장판을 구비하는 것을 특징으로 하는 광학 시스템.
  9. 제1항에 있어서, 상기 제2서브빔의 상기 편광을 회전시키는 수단이 나선형 네마틱 액체 수정셀을 구비하 것을 특징으로 하는 광학 시스템.
  10. 제1항에 있어서, 상기 제1 및 제2방향 설정 수단이 제1 및 제2프리즘 수단을 구비하고, 상기 제1 및 제2서브빔을 얻는 상기 수단이 상기 제1 및 제2프리즘 수단 사이에 배치된 것을 특징으로 하는 광학 시스템.
  11. 광원과 그리고 이 광원으로부터 나오는 광을 빔으로 집중시키는 수단을 구비하는 LCD투영 디스플레이시스템 조명 시스템에 있어서, 상기 빔을 직교 편광되는 두개의 빔으로 분광시키고, 이 두개의 빔을 LCD 디스플레이 쪽으로 향하게 되는 합성 빔으로 다시 결합시키는, 상기 제 1, 2, 3, 4, 5, 6, 7, 8, 9 및 10항에서 주장된 광학 시스템을 구비하는 것을 특징으로 하는 LCD투영 디스플레이 시스템용 조명 시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890019213A 1988-12-27 1989-12-22 Lcd디스플레이 시스템용 조명 시스템 KR0152982B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/290,471 US4913529A (en) 1988-12-27 1988-12-27 Illumination system for an LCD display system
US290,471 1988-12-27

Publications (2)

Publication Number Publication Date
KR900010448A true KR900010448A (ko) 1990-07-07
KR0152982B1 KR0152982B1 (ko) 1998-11-16

Family

ID=23116147

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890019213A KR0152982B1 (ko) 1988-12-27 1989-12-22 Lcd디스플레이 시스템용 조명 시스템

Country Status (7)

Country Link
US (1) US4913529A (ko)
EP (1) EP0376395B1 (ko)
JP (1) JP2747349B2 (ko)
KR (1) KR0152982B1 (ko)
CN (1) CN1020133C (ko)
DE (1) DE68916398T2 (ko)
HK (1) HK75496A (ko)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5042921A (en) * 1988-10-25 1991-08-27 Casio Computer Co., Ltd. Liquid crystal display apparatus
JPH02153336A (ja) * 1988-12-05 1990-06-13 Sharp Corp 投影型液晶表示装置
US5082354A (en) * 1989-08-29 1992-01-21 Kaiser Aerospace And Electronics Corporation Optical switch and color selection assembly
DE69030038T2 (de) * 1989-08-31 1997-06-12 Asahi Glass Co Ltd Flüssigkristallfarbprojektionsanzeigevorrichtung
JP2893599B2 (ja) * 1989-10-05 1999-05-24 セイコーエプソン株式会社 偏光光源及び投写型表示装置
US5212471A (en) * 1989-10-27 1993-05-18 Hughes Aircraft Company Polarized heads up display
DE69028497T2 (de) * 1989-12-20 1997-02-06 Canon Kk Polarisierendes Beleuchtungsgerät
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
EP0540555B1 (de) * 1990-07-24 1996-05-15 Deutsche Thomson-Brandt GmbH Einrichtung zur beleuchtung mit polarisiertem licht
US5570209A (en) * 1990-09-18 1996-10-29 Mitsubishi Denki Kabushiki Kaisha Color projection type display apparatus having three liquid crystal displays of same structure
FR2669127B1 (fr) * 1990-11-09 1993-01-22 Thomson Csf Projecteur d'images a deux faisceaux polarises par ecran matriciel.
FR2669440B1 (fr) * 1990-11-21 1994-08-26 Sextant Avionique Dispositif de visualisation en couleur par projection mettant en óoeuvre des valves optiques.
DE69126406T2 (de) * 1990-11-27 1997-09-18 Asahi Glass Co Ltd Projektionsanzeigevorrichtung mit Blende
JP2575558Y2 (ja) * 1990-12-26 1998-07-02 エルジー電子株式会社 液晶投写形ディスプレイの光学系構造
JP2517835Y2 (ja) * 1991-02-08 1996-11-20 矢崎総業株式会社 車両用表示装置
US5111315A (en) * 1991-02-14 1992-05-05 Hughes Aircraft Company Optical system for illuminating a light valve
BR9206133A (pt) * 1991-06-13 1994-11-29 Minnesota Mining & Mfg Polarizador retro-reflexivo e sistema ótico
FR2680016B1 (fr) * 1991-07-30 1994-08-26 Thomson Csf Visuel grand champ collimate a miroir spherique ou elliptique, en particulier pour simulateur.
FR2680882B1 (fr) * 1991-08-06 1993-10-29 Thomson Csf Projecteur d'images a efficacite lumineuse orptimisee.
US5301030A (en) * 1991-08-13 1994-04-05 Samsung Electronics Co., Ltd. Optical illumination apparatus for a display unit with efficient light source polarization
FR2685500B1 (fr) * 1991-12-20 1994-12-23 Thomson Csf Separateur optique de polarisations et application a un systeme de visualisation.
JPH05241103A (ja) * 1992-02-21 1993-09-21 Nec Corp 投射型液晶表示装置
US5422756A (en) * 1992-05-18 1995-06-06 Minnesota Mining And Manufacturing Company Backlighting system using a retroreflecting polarizer
JP3380913B2 (ja) * 1992-06-11 2003-02-24 ソニー株式会社 固体撮像装置
US5903388A (en) * 1992-06-11 1999-05-11 Sedlmayr Steven R High efficiency electromagnetic beam projector and systems and method for implementation thereof
US5347433A (en) * 1992-06-11 1994-09-13 Sedlmayr Steven R Collimated beam of light and systems and methods for implementation thereof
JP3362900B2 (ja) * 1993-03-09 2003-01-07 富士通株式会社 面発光装置
US5428469A (en) * 1993-11-16 1995-06-27 Minnesota Mining And Manufacturing Company Liquid crystal display projection systems employing polarizing beam splitters and passing light through display cell from both directions
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
US5716122A (en) * 1994-08-25 1998-02-10 Nikon Corporation Optical apparatus using polarizing beam splitter
US5823662A (en) * 1994-08-25 1998-10-20 Lightware, Inc. High efficiency illumination system
US5579134A (en) * 1994-11-30 1996-11-26 Honeywell Inc. Prismatic refracting optical array for liquid flat panel crystal display backlight
EP1063555B1 (en) * 1994-12-28 2004-03-10 Seiko Epson Corporation Polarization luminaire and projector using it
JP3641291B2 (ja) * 1995-03-09 2005-04-20 ペンタックス株式会社 偏光変換素子およびその使用方法
US5757547A (en) * 1995-04-24 1998-05-26 Polycom, Inc. High efficiency homogeneous polarization converter
JPH0950000A (ja) * 1995-06-02 1997-02-18 Matsushita Electric Ind Co Ltd 偏光方向変換照明装置および投写型画像表示装置
US5995284A (en) * 1996-03-29 1999-11-30 3M Innovative Properties Company Polarized illumination system for LCD projector
JPH1078511A (ja) * 1996-09-04 1998-03-24 Hitachi Ltd 偏光分離器、偏光変換素子およびそれを用いた液晶表示装置
JP3444521B2 (ja) * 1997-06-20 2003-09-08 シャープ株式会社 投影型画像表示装置
US6108131A (en) 1998-05-14 2000-08-22 Moxtek Polarizer apparatus for producing a generally polarized beam of light
US6208463B1 (en) 1998-05-14 2001-03-27 Moxtek Polarizer apparatus for producing a generally polarized beam of light
AU747281B2 (en) 1998-06-08 2002-05-09 Karlheinz Strobl Efficient light engine systems, components and methods of manufacture
US6288840B1 (en) 1999-06-22 2001-09-11 Moxtek Imbedded wire grid polarizer for the visible spectrum
US6122103A (en) * 1999-06-22 2000-09-19 Moxtech Broadband wire grid polarizer for the visible spectrum
US7306338B2 (en) * 1999-07-28 2007-12-11 Moxtek, Inc Image projection system with a polarizing beam splitter
US6666556B2 (en) 1999-07-28 2003-12-23 Moxtek, Inc Image projection system with a polarizing beam splitter
US6447120B2 (en) 1999-07-28 2002-09-10 Moxtex Image projection system with a polarizing beam splitter
US6234634B1 (en) 1999-07-28 2001-05-22 Moxtek Image projection system with a polarizing beam splitter
US6243199B1 (en) 1999-09-07 2001-06-05 Moxtek Broad band wire grid polarizing beam splitter for use in the visible wavelength region
IL132928A0 (en) * 1999-11-14 2001-03-19 Unic View Ltd Thermally stable birefringent prism assembly
US7375887B2 (en) 2001-03-27 2008-05-20 Moxtek, Inc. Method and apparatus for correcting a visible light beam using a wire-grid polarizer
JP2003029211A (ja) * 2001-07-19 2003-01-29 Canon Inc 投射型画像表示装置
EP1436545A4 (en) * 2001-10-19 2007-10-03 3M Innovative Properties Co POLARIZATION CONVERSION SYSTEM FOR LIGHTING
US7061561B2 (en) * 2002-01-07 2006-06-13 Moxtek, Inc. System for creating a patterned polarization compensator
US6909473B2 (en) * 2002-01-07 2005-06-21 Eastman Kodak Company Display apparatus and method
US6785050B2 (en) 2002-05-09 2004-08-31 Moxtek, Inc. Corrosion resistant wire-grid polarizer and method of fabrication
US20040212883A1 (en) * 2002-08-15 2004-10-28 Agere Systems Inc. Planar polarization beam combiner/splitter
US7113335B2 (en) * 2002-12-30 2006-09-26 Sales Tasso R Grid polarizer with suppressed reflectivity
TW594053B (en) * 2003-03-25 2004-06-21 Delta Electronics Inc Image projection apparatus and its optical polarization module
JP4556486B2 (ja) * 2004-05-19 2010-10-06 セイコーエプソン株式会社 偏光子及びプロジェクタ
DE102004029056A1 (de) 2004-06-16 2006-01-12 Carl Zeiss Variable Blende, Beleuchtungseinrichtung, optische Beobachtungseinrichtung sowie optisches Beobachtungsgerät
US7630133B2 (en) * 2004-12-06 2009-12-08 Moxtek, Inc. Inorganic, dielectric, grid polarizer and non-zero order diffraction grating
US7961393B2 (en) 2004-12-06 2011-06-14 Moxtek, Inc. Selectively absorptive wire-grid polarizer
US20080055549A1 (en) * 2006-08-31 2008-03-06 Perkins Raymond T Projection Display with an Inorganic, Dielectric Grid Polarizer
US20080055722A1 (en) * 2006-08-31 2008-03-06 Perkins Raymond T Optical Polarization Beam Combiner/Splitter with an Inorganic, Dielectric Grid Polarizer
US20080055721A1 (en) * 2006-08-31 2008-03-06 Perkins Raymond T Light Recycling System with an Inorganic, Dielectric Grid Polarizer
US7800823B2 (en) * 2004-12-06 2010-09-21 Moxtek, Inc. Polarization device to polarize and further control light
US7570424B2 (en) * 2004-12-06 2009-08-04 Moxtek, Inc. Multilayer wire-grid polarizer
US20080055720A1 (en) * 2006-08-31 2008-03-06 Perkins Raymond T Optical Data Storage System with an Inorganic, Dielectric Grid Polarizer
CN100445801C (zh) * 2006-01-18 2008-12-24 台达电子工业股份有限公司 用于光学设备的光线耦合装置
US20070296921A1 (en) * 2006-06-26 2007-12-27 Bin Wang Projection display with a cube wire-grid polarizing beam splitter
US20070297052A1 (en) * 2006-06-26 2007-12-27 Bin Wang Cube wire-grid polarizing beam splitter
US8755113B2 (en) * 2006-08-31 2014-06-17 Moxtek, Inc. Durable, inorganic, absorptive, ultra-violet, grid polarizer
US7789515B2 (en) * 2007-05-17 2010-09-07 Moxtek, Inc. Projection device with a folded optical path and wire-grid polarizer
US20080316599A1 (en) * 2007-06-22 2008-12-25 Bin Wang Reflection-Repressed Wire-Grid Polarizer
CN101738668B (zh) * 2008-11-19 2011-12-07 上海丽恒光微电子科技有限公司 偏振立方体及其制造方法
US8248696B2 (en) 2009-06-25 2012-08-21 Moxtek, Inc. Nano fractal diffuser
JP5671766B2 (ja) * 2009-10-01 2015-02-18 トルネード スペクトラル システムズ，インコーポレイテッド 分散分光器のスペクトル分解能を改善するための光学スライサー
US9339993B2 (en) 2010-09-14 2016-05-17 Corning Incorporated Appliance fascia and mounting therefore
US8913321B2 (en) 2010-09-21 2014-12-16 Moxtek, Inc. Fine pitch grid polarizer
US8611007B2 (en) 2010-09-21 2013-12-17 Moxtek, Inc. Fine pitch wire grid polarizer
US8913320B2 (en) 2011-05-17 2014-12-16 Moxtek, Inc. Wire grid polarizer with bordered sections
US8873144B2 (en) 2011-05-17 2014-10-28 Moxtek, Inc. Wire grid polarizer with multiple functionality sections
US8922890B2 (en) 2012-03-21 2014-12-30 Moxtek, Inc. Polarizer edge rib modification
US9188723B2 (en) 2013-03-14 2015-11-17 Ppg Industries Ohio, Inc. Patterns on glass for increased light transmission and/or light trapping
US9348076B2 (en) 2013-10-24 2016-05-24 Moxtek, Inc. Polarizer with variable inter-wire distance
CA2984403C (en) 2015-01-21 2021-04-20 Tornado Spectral Systems Inc. Hybrid image-pupil optical reformatter
CN109844617B (zh) * 2016-10-13 2022-07-12 株式会社Lg化学 光学隔离装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522985A (en) * 1965-10-23 1970-08-04 Polaroid Corp High-transmission light polarizer
GB1194226A (en) * 1966-10-17 1970-06-10 Texas Instruments Inc Information Display Method and System.
US3692385A (en) * 1970-06-01 1972-09-19 John George Gievers Rotation sensitive retarder system
US3704997A (en) * 1971-05-19 1972-12-05 American Optical Corp Variable amplitude polarizing beam splitter
US4127322A (en) * 1975-12-05 1978-11-28 Hughes Aircraft Company High brightness full color image light valve projection system
US4127332A (en) * 1976-11-19 1978-11-28 Daedalean Associates, Inc. Homogenizing method and apparatus
JPS6118481Y2 (ko) * 1980-05-09 1986-06-05
US4345258A (en) * 1980-12-15 1982-08-17 The Singer Company Color display system
JPS59127019A (ja) * 1983-01-11 1984-07-21 Canon Inc プリンタヘツド
JPH0627907B2 (ja) * 1983-02-16 1994-04-13 株式会社日立製作所 光学的情報処理装置
JPH061303B2 (ja) * 1984-11-20 1994-01-05 ソニー株式会社 偏光照明装置
JPS62295025A (ja) * 1986-06-16 1987-12-22 Seiko Epson Corp 投射型表示装置
JPH0792561B2 (ja) * 1986-07-08 1995-10-09 株式会社精工舎 投写式液晶表示装置
JPH0769539B2 (ja) * 1986-11-12 1995-07-31 株式会社日立製作所 液晶表示装置
JPS63168622A (ja) * 1987-01-05 1988-07-12 Canon Inc 光偏向素子
US4786146A (en) * 1987-02-11 1988-11-22 Hughes Aircraft Company Color sequential illumination system for a liquid crystal light valve
JPS63200102A (ja) * 1987-02-17 1988-08-18 Alps Electric Co Ltd バツクライト照光装置
JPS63271313A (ja) * 1987-04-30 1988-11-09 Nikon Corp 偏光器

Also Published As

Publication number Publication date
DE68916398T2 (de) 1995-02-02
EP0376395A3 (en) 1991-01-23
HK75496A (en) 1996-05-10
CN1020133C (zh) 1993-03-17
CN1043994A (zh) 1990-07-18
JPH02239219A (ja) 1990-09-21
EP0376395A2 (en) 1990-07-04
DE68916398D1 (de) 1994-07-28
JP2747349B2 (ja) 1998-05-06
US4913529A (en) 1990-04-03
KR0152982B1 (ko) 1998-11-16
EP0376395B1 (en) 1994-06-22

Similar Documents

Publication Publication Date Title
KR900010448A (ko) Lcd디스플레이 시스템용 조명 시스템
US5898521A (en) LCD Projector
KR960700458A (ko) 액정디스플레이 및 오버헤드 프로젝터용 콜레스테릭 편광자(cholesteric polarizer for liquid crystal display and overhead projector)
KR970706467A (ko) 루미넌스 제어 필름(luminance control film)
KR100456492B1 (ko) Lcd프로젝터용편광조명시스템
DE60101310T8 (de) Reflektierendes lcd projektionssystem mit kartesischem weitwinkel-polarisationsstrahlteiler und farbteilenden und -vereinigenden prismen
JPH1152298A (ja) 偏光照明装置及び投射型画像表示装置
JPH02308106A (ja) 直線遍光光源
KR100443381B1 (ko) 편광분리기,편광변환소자및그것을사용한액정표시장치
JP2861187B2 (ja) 光源用偏光変換素子
KR930015881A (ko) 직선편광 변환장치
US7237900B2 (en) Polarization conversion system
US7202918B2 (en) LCD projection system and illumination device thereof
JPH05313156A (ja) 薄型液晶ディスプレイ装置
US5963372A (en) Optical polarizer
US20040095550A1 (en) Polarized illumination system and liquid crystal display device
US7180666B2 (en) Polarized light illumination device
JPH046516A (ja) 光源装置
KR100285618B1 (ko) 액정프로젝터 조명계
KR100290831B1 (ko) 엘씨디프로젝터용조명장치
KR100315031B1 (ko) 백라이트유니트의편광변환광학시스템
JPH05210098A (ja) 液晶表示装置
JPH06258600A (ja) 偏光光源装置及び画像表示装置
SU1603333A1 (ru) Оптический дефлектор
KR930003960B1 (ko) 편광빔 제너레이터 및 그 편광빔 제너레이터를 이용한 lcd프로젝터

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee