KR890700990A - 액정 광밸브용 색 순차 조명 시스템 - Google Patents

액정 광밸브용 색 순차 조명 시스템

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Publication number
KR890700990A
KR890700990A KR1019880701258A KR880701258A KR890700990A KR 890700990 A KR890700990 A KR 890700990A KR 1019880701258 A KR1019880701258 A KR 1019880701258A KR 880701258 A KR880701258 A KR 880701258A KR 890700990 A KR890700990 A KR 890700990A
Authority
KR
South Korea
Prior art keywords
light
color
liquid crystal
receive
polarized
Prior art date
Application number
KR1019880701258A
Other languages
English (en)
Other versions
KR920003729B1 (ko
Inventor
아노 지. 레대버
Original Assignee
에이. 더블유. 카람벨타스
휴우즈 에어크라프트 캄파니
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 에이. 더블유. 카람벨타스, 휴우즈 에어크라프트 캄파니 filed Critical 에이. 더블유. 카람벨타스
Priority claimed from PCT/GB1988/000142 external-priority patent/WO1988007452A1/en
Publication of KR890700990A publication Critical patent/KR890700990A/ko
Application granted granted Critical
Publication of KR920003729B1 publication Critical patent/KR920003729B1/ko

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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]
    • 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
    • G02F1/133621—Illuminating devices providing coloured light
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
    • G02B27/1026—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators
    • G02B27/1033—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators having a single light modulator for all colour channels
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • 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
    • H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
    • H04N9/3114—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing one colour at a time
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light
    • G02F1/133622—Colour sequential illumination

Abstract

내용 없음.

Description

액정 광밸브용 색 순차 조명 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 지시를 사용한 색 순차 조명 시스템의 예시적인 실시예의 광학 레이아웃(layout) 도면이고,

Claims (5)

  1. 단일 액정 광 밸브(38)을 사용하는 필드-순차 전-색 액정 투사 시스템에 있어서, 비편광된 백색 광선의 비임에 의해 조명될때 제1편광 상태의 편광 백색 광선의 비임을 제공하기 위한 편광기(12), 편광된 백색 광선의 비임들 중 한 비임을 수신하도록 배치되고, 제1색(B)의 제1 비임과 제2색(R) 및 제3색(G)의 제2비임을 제공하는 제1비임 분할기(14), 제2비임을 수신하도록 배치되고, 제2색(R)의 제3비임과 제3(G)의 제4비임을 제공하는 제2비임 분할기(16), 제2, 제3 및 제4 비임을 수신하도록 배치되고, 이 제2, 제3 및 제4비임의 편광을 제2편광 상태로 선택적으로 변화시키는 광스위치장치(20,22 및 24), 및 제1 또는 제2편광 상태들 중 한 상태의 광선을 액정 광 밸브(38)로 전송하기 위해 광스위치 장치(20,22 및 24)로 부터 출력 비임을 수신하도록 배치된 주 프리즘(46)으로 구성된 것을 특징으로 하는 필드-순차 전-색 액정 투사 시스템.
  2. 단일 액정 광 밸브(38)을 사용하는 필드-순차 색 액정 투사 시스템에 있어서, 비편광된 백색 광선의 비임에 의해 조명될때 제1편광 상태의 편광 백색 광선의 비임을 제공하기 위한 편광기(12), 편광된 백색 광선의 비임을 수신하도록 배치되고, 제1색(B)의 제1비임과 제2색(R) 및 제3색(G)의 제2비임을 제공하는 제1비임 분할기(14), 제2비임을 수신하도록 배치되고, 제2색(R)의 제3비임을 제공하는 제2비임 분할기(16), 제1 및 제3비임을 각각 수신하도록 배치되고, 제1 및 제3비임의 편광물의 편광을 제2편광상태로 선택적으로 변화시키는 제1 및 제2광스위치 장치(20 및 22), 및 제1 또는 제2편광 상태들 중 한 상태의 광선을 액정 광밸브(38)로 전송하기 위해 광스위치 장치(20 및 22)로부터 출력 비임을 수신하도록 배치된 주 프리즘(46)으로 구성된 것을 특징으로 하는 필드-순차 색 액정 투사 시스템.
  3. 제2항에 있어서, 편광기(12)가 또한 비편광된 백색 광선의 비임에 의해 조명될 때 제2편광상태의 편광 광선의 비임을 제공하고, 제2비임 분할기(16)이 또한 제3색(G)의 제4비임을 제공하며, 제3광스위치 장치(24)가 제4비임을 수신하도록 배치되고, 제4비임의 편광을 제2편광 상태로 선택적으로 변화시키며, 주프리즘(46)이 또한 제3광스위치 장치(24)로부터 출력 비임을 수신하도록 배치되는 것을 특징으로 하는 필드-순차 색 액정 투사 시스템.
  4. 제2항에 있어서, 편광기(12)가 또한 비편광된 백색 광선의 비임에 의해 조명될 때 제2편광 상태의 편광 광선의 비임을 제공하고, 제4비임 분할기(18)이 제2편광 상태의 백색 광선의 비임을 수신하도록 배치되고, 제3색(G)의 제5비임을 수신하도록 배치되고, 제5비임의 편광을 제2편광 상태로 선택적으로 변화시키며, 주 프리즘(46)이 또한 제4광스위치 장치(24)로부터 출력 비임을 수신하도록 배치되는 것을 특징으로 하는 필드-순차 색 액정 투사 시스템.
  5. 제5항에 있어서, 주 편광 프리즘(48)이 편광 상태들(S 및 P)중의 한 상태의 광선을 전송하고 다른 편광 상태의 광선을 반사시키기 위한 장치를 포함하는 것을 특징으로 하는 4색 액정 광 밸브 영상 투사기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880701258A 1987-02-11 1988-01-22 액정 광밸브용 필드-순차 컬러 투사기 KR920003729B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US013307 1987-02-11
US07/013,307 US4786146A (en) 1987-02-11 1987-02-11 Color sequential illumination system for a liquid crystal light valve
PCT/GB1988/000142 WO1988007452A1 (en) 1987-03-27 1988-02-26 Improvements in and relating to picture cards

Publications (2)

Publication Number Publication Date
KR890700990A true KR890700990A (ko) 1989-04-28
KR920003729B1 KR920003729B1 (ko) 1992-05-09

Family

ID=21759290

Family Applications (1)

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KR1019880701258A KR920003729B1 (ko) 1987-02-11 1988-01-22 액정 광밸브용 필드-순차 컬러 투사기

Country Status (7)

Country Link
US (1) US4786146A (ko)
EP (1) EP0301065B1 (ko)
JP (1) JPH01502139A (ko)
KR (1) KR920003729B1 (ko)
DE (1) DE3876027T2 (ko)
NO (1) NO175660C (ko)
WO (1) WO1988006391A1 (ko)

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Also Published As

Publication number Publication date
NO175660C (no) 1994-11-09
WO1988006391A1 (en) 1988-08-25
NO175660B (ko) 1994-08-01
EP0301065A1 (en) 1989-02-01
JPH0465595B2 (ko) 1992-10-20
NO884420L (no) 1988-10-05
JPH01502139A (ja) 1989-07-27
KR920003729B1 (ko) 1992-05-09
US4786146A (en) 1988-11-22
NO884420D0 (no) 1988-10-05
EP0301065B1 (en) 1992-11-19
DE3876027D1 (de) 1992-12-24
DE3876027T2 (de) 1993-03-25

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