KR910021147A - Lcd 프로젝터의 광학 시스템 - Google Patents

Lcd 프로젝터의 광학 시스템 Download PDF

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Publication number
KR910021147A
KR910021147A KR1019900007186A KR900007186A KR910021147A KR 910021147 A KR910021147 A KR 910021147A KR 1019900007186 A KR1019900007186 A KR 1019900007186A KR 900007186 A KR900007186 A KR 900007186A KR 910021147 A KR910021147 A KR 910021147A
Authority
KR
South Korea
Prior art keywords
reflected
filter
optical system
blue
reflection mirror
Prior art date
Application number
KR1019900007186A
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English (en)
Other versions
KR920010809B1 (ko
Inventor
이승규
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019900007186A priority Critical patent/KR920010809B1/ko
Priority to US07/699,500 priority patent/US5196926A/en
Priority to JP3113337A priority patent/JPH0580290A/ja
Priority to EP19910401283 priority patent/EP0458687A3/en
Publication of KR910021147A publication Critical patent/KR910021147A/ko
Application granted granted Critical
Publication of KR920010809B1 publication Critical patent/KR920010809B1/ko

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Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Projection Apparatus (AREA)
  • Optical Filters (AREA)

Abstract

내용 없음

Description

LCD 프로젝터의 광학 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명에 따른 LCD 프로젝터 구성도.

Claims (1)

  1. LCD 프로젝터의 광학계를 형성함에 있어서, 고휘도 조명계(1)로써 메탈할라이드램프를 사용하고, 적외선 흡수필터(16)를 거쳐 나온 색(R, G, B)중에서 청색(B)은 45°청 투과필터(2)와 콘덴서 렌즈(13) 및 액정판넬(10)을 거쳐 전반사 거울(7)에서 반사되어 45°청 투과필터(8)에 입사되도록 하고, 45°청 투과필터(2)에서 반사된 녹색(G)은 45°녹반사거울(3)에서 반사된후 콘덴서 렌즈(14)와 액정판넬(11) 및 45°적반사거울(6)을 거쳐 45°청투과 필터(8)에서 반사되도록 하고, 45°청 투과필터(2)에서 반사된 적색(R)은 45°녹반사 거울(3)을 거쳐 전반사거울(4), (5)에서 반사된후 콘덴서 렌즈(15)와 액정판넬(12)을 거치고 45°적 반사 거울(6)에서 반사되어 45°청투과 필터(8)에서 반사되도록 하여 청투과필터(8)에서 3가지 광(R, G, B)이 합성되어 프로젝션 렌즈(9)에서 확대 투사되도록한 것을 특징으로 하는 LCD프로젝터의 광학 시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900007186A 1990-05-19 1990-05-19 Lcd 프로젝터의 광학 시스템 KR920010809B1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019900007186A KR920010809B1 (ko) 1990-05-19 1990-05-19 Lcd 프로젝터의 광학 시스템
US07/699,500 US5196926A (en) 1990-05-19 1991-05-14 Optical system for an lcd projector
JP3113337A JPH0580290A (ja) 1990-05-19 1991-05-17 Ｌｃｄプロジエクターの光学システム
EP19910401283 EP0458687A3 (en) 1990-05-19 1991-05-17 Lcd projector with an optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900007186A KR920010809B1 (ko) 1990-05-19 1990-05-19 Lcd 프로젝터의 광학 시스템

Publications (2)

Publication Number Publication Date
KR910021147A true KR910021147A (ko) 1991-12-20
KR920010809B1 KR920010809B1 (ko) 1992-12-17

Family

ID=19299175

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900007186A KR920010809B1 (ko) 1990-05-19 1990-05-19 Lcd 프로젝터의 광학 시스템

Country Status (4)

Country Link
US (1) US5196926A (ko)
EP (1) EP0458687A3 (ko)
JP (1) JPH0580290A (ko)
KR (1) KR920010809B1 (ko)

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DE69611560T2 (de) * 1995-03-23 2001-06-21 Ibm Wirksames optisches System für eine hochauflösende Projektionsanzeige mit Reflexionslichtventilen
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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
US20070297052A1 (en) * 2006-06-26 2007-12-27 Bin Wang Cube wire-grid polarizing beam splitter
US20070296921A1 (en) * 2006-06-26 2007-12-27 Bin Wang Projection display with a cube wire-grid polarizing beam splitter
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US20080316599A1 (en) * 2007-06-22 2008-12-25 Bin Wang Reflection-Repressed Wire-Grid Polarizer
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Also Published As

Publication number Publication date
US5196926A (en) 1993-03-23
JPH0580290A (ja) 1993-04-02
KR920010809B1 (ko) 1992-12-17
EP0458687A2 (en) 1991-11-27
EP0458687A3 (en) 1992-08-26

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