CA2336553A1 - Liquid crystal projector device - Google Patents

Liquid crystal projector device Download PDF

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Publication number
CA2336553A1
CA2336553A1 CA002336553A CA2336553A CA2336553A1 CA 2336553 A1 CA2336553 A1 CA 2336553A1 CA 002336553 A CA002336553 A CA 002336553A CA 2336553 A CA2336553 A CA 2336553A CA 2336553 A1 CA2336553 A1 CA 2336553A1
Authority
CA
Canada
Prior art keywords
polarization
region
light
liquid crystal
pbs
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.)
Granted
Application number
CA002336553A
Other languages
French (fr)
Other versions
CA2336553C (en
Inventor
Shinichiro Tajiri
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.)
Fujitsu General Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2336553A1 publication Critical patent/CA2336553A1/en
Application granted granted Critical
Publication of CA2336553C publication Critical patent/CA2336553C/en
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]
    • H04N9/3102—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
    • 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
    • G02F1/133533—Colour selective polarisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells

Abstract

A liquid crystal projector device, wherein an s-polarization PBS (4) forms light from a light source (1) a set of s-polarization components; an optical unit (7) reflects a green-region light and rotates 90° the planes of polarization of a blue-region light and red-region light for outputting as p-polarization lights by reflection; a PBS (8) reflects an s-polarization green-region light and transmits p-polarization blue-region and red-region lights which are then separated from each other by a dichroic prism (9); the s-polarization green-region light is modulated into a p-polarization projected image light and reflected by a reflection type liquid crystal sheet (10G) to transmit the PBS (8); the p-polarization blue-region and red-region lighta shine on reflection type liquid crystal sheets (10B, 10R) and are modulated respectively into s-polarization projected image lights, reflected and synthesized by the dichroic prism (9) before reflected by the PBS (8) for projection by a projection lens (11).
CA002336553A 1998-07-03 1999-07-05 Liquid crystal projector device Expired - Fee Related CA2336553C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP18835098A JP3573190B2 (en) 1998-07-03 1998-07-03 LCD projector
JP10/188350 1998-07-03
PCT/JP1999/003624 WO2000002084A1 (en) 1998-07-03 1999-07-05 Liquid crystal projector device

Publications (2)

Publication Number Publication Date
CA2336553A1 true CA2336553A1 (en) 2000-01-13
CA2336553C CA2336553C (en) 2007-01-09

Family

ID=16222096

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002336553A Expired - Fee Related CA2336553C (en) 1998-07-03 1999-07-05 Liquid crystal projector device

Country Status (6)

Country Link
US (1) US6742897B1 (en)
EP (1) EP1096302B1 (en)
JP (1) JP3573190B2 (en)
CA (1) CA2336553C (en)
DE (1) DE69923561T2 (en)
WO (1) WO2000002084A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9784980B2 (en) 2013-04-05 2017-10-10 Hamamatsu Photonics K.K. Optical module and light exposure device
US10495896B2 (en) 2013-04-05 2019-12-03 Hamamatsu Photonics K.K. Optical module and observation device

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6550919B1 (en) * 1999-03-26 2003-04-22 Unaxis Balzers Aktiengesellschaft Spectral light division and recombination configuration as well as process for the spectrally selective modulation of light
US6995917B1 (en) * 1999-04-08 2006-02-07 Sharp Laboratories Of America, Inc. Projection display system using polarized light
US6781640B1 (en) 1999-11-15 2004-08-24 Sharp Laboratories Of America, Inc. Projection display having polarization compensator
US7101047B2 (en) 2000-03-31 2006-09-05 Sharp Laboratories Of America, Inc. Projection display systems for light valves
JP3768381B2 (en) * 2000-05-11 2006-04-19 株式会社日立製作所 LCD projector
JP4210425B2 (en) * 2000-12-08 2009-01-21 富士フイルム株式会社 Optical element
US6739724B2 (en) 2001-06-22 2004-05-25 Seiko Epson Corporation Illumination optical system and projector
JP2006145837A (en) * 2004-11-19 2006-06-08 Nagano Kogaku Kenkyusho:Kk Liquid crystal projector
JP4732089B2 (en) 2005-09-13 2011-07-27 キヤノン株式会社 Wavelength selective polarization conversion element, projection display optical system, and image projection apparatus
JP2007163597A (en) 2005-12-09 2007-06-28 Canon Inc Wavelength selective polarization conversion element, illumination optical system, projection display optical system and image projection apparatus
US7821713B2 (en) * 2007-05-18 2010-10-26 3M Innovative Properties Company Color light combining system for optical projector
US8305502B2 (en) * 2009-11-11 2012-11-06 Eastman Kodak Company Phase-compensated thin-film beam combiner
CN102377937B (en) * 2010-08-04 2015-07-15 株式会社日立国际电气 Shooting device
JP6014538B2 (en) * 2013-04-05 2016-10-25 浜松ホトニクス株式会社 Optical module, light observation device, and light irradiation device

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115305A (en) * 1990-07-05 1992-05-19 Baur Thomas G Electrically addressable liquid crystal projection system with high efficiency and light output
JP2575558Y2 (en) * 1990-12-26 1998-07-02 エルジー電子株式会社 Optical system structure of liquid crystal projection display
JPH05323262A (en) * 1992-05-22 1993-12-07 Fujitsu Ltd Projection type liquid crystal display device
US5374968A (en) * 1993-11-08 1994-12-20 Greyhawk Systems, Inc. Optics for a single-lens video projector with color-specific polarization channels
US6147802A (en) * 1994-12-28 2000-11-14 Seiko Epson Corporation Polarization luminaire and projection display
US6183091B1 (en) * 1995-04-07 2001-02-06 Colorlink, Inc. Color imaging systems and methods
TW412656B (en) * 1996-04-26 2000-11-21 Hitachi Ltd Liquid crystal display
JPH10142712A (en) * 1996-11-13 1998-05-29 Matsushita Electric Ind Co Ltd Projection type display device
JP3444521B2 (en) * 1997-06-20 2003-09-08 シャープ株式会社 Projection type image display device
US6176586B1 (en) * 1998-03-24 2001-01-23 Minolta Co., Ltd. Projection display apparatus
TW407222B (en) * 1998-05-14 2000-10-01 Primax Electronics Ltd The projective display apparatus used to show the image
JP3622500B2 (en) * 1998-05-20 2005-02-23 株式会社富士通ゼネラル Liquid crystal projector
US6023370A (en) * 1998-05-29 2000-02-08 Primax Electronics Ltd. Light polarizing device for generating a polarized light with different polarizations
JP3555451B2 (en) * 1998-06-22 2004-08-18 ミノルタ株式会社 Polarization conversion dichroic mirror and LCD projector
JP2000180792A (en) * 1998-12-10 2000-06-30 Minolta Co Ltd Illumination optical system and projection type picture display device
JP2001100155A (en) * 1999-09-30 2001-04-13 Fujitsu General Ltd Reflection type liquid crystal projector
US6375330B1 (en) * 1999-12-30 2002-04-23 Gain Micro-Optics, Inc. Reflective liquid-crystal-on-silicon projection engine architecture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9784980B2 (en) 2013-04-05 2017-10-10 Hamamatsu Photonics K.K. Optical module and light exposure device
US10495896B2 (en) 2013-04-05 2019-12-03 Hamamatsu Photonics K.K. Optical module and observation device

Also Published As

Publication number Publication date
CA2336553C (en) 2007-01-09
DE69923561T2 (en) 2005-08-04
EP1096302A4 (en) 2003-01-29
WO2000002084A1 (en) 2000-01-13
JP3573190B2 (en) 2004-10-06
US6742897B1 (en) 2004-06-01
JP2000019455A (en) 2000-01-21
EP1096302A1 (en) 2001-05-02
DE69923561D1 (en) 2005-03-10
EP1096302B1 (en) 2005-02-02

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