KR980007769A - The optical system of the projection type image display apparatus - Google Patents

The optical system of the projection type image display apparatus Download PDF

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Publication number
KR980007769A
KR980007769A KR1019960025571A KR19960025571A KR980007769A KR 980007769 A KR980007769 A KR 980007769A KR 1019960025571 A KR1019960025571 A KR 1019960025571A KR 19960025571 A KR19960025571 A KR 19960025571A KR 980007769 A KR980007769 A KR 980007769A
Authority
KR
South Korea
Prior art keywords
color
light
optical system
ama panel
reflecting mirror
Prior art date
Application number
KR1019960025571A
Other languages
Korean (ko)
Other versions
KR100199874B1 (en
Inventor
황주성
Original Assignee
배순훈
대우전자 주식회사
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.)
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019960025571A priority Critical patent/KR100199874B1/en
Publication of KR980007769A publication Critical patent/KR980007769A/en
Application granted granted Critical
Publication of KR100199874B1 publication Critical patent/KR100199874B1/en

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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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
    • G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/10—Mirrors with curved faces
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Projection Apparatus (AREA)

Abstract

본 발명은 투사형 화상표시장치의 광학계에 관한 것으로, 노이즈성분의 반사광에 의한 화질의 열화를 방지하기 위해 광원(40)에서 방사된 광비임을 소정의 시차적인 주기를 R/G/B컬러비임화는 단일의 컬러휠(44)과, 그 컬러휠(44)에서 R/G/B컬러비임화되어 상기 소오스 스톱부재(46)에서 정형화된 컬라비임을 시차적으로 상기 컬러 화상신호의 R/G/B컬러성분에 의거하여 광로조절해서 광변조하는 단일의 AMA패널(48), 그 AMA패널(48)에서 광변조되어 반사되는 컬러비임을 독립적인 반사경로를 통해 상기 투사렌즈(54)에 입사되도록 하는 광반사미러부재(50)를 갖추어 구성된 것이다.The present invention relates to an optical system of a projection type image display apparatus, in which a predetermined periodic period of a light ratio emitted from a light source (40) in order to prevent deterioration of image quality due to reflected light of a noise component is defined as R / And the R / G / B color of the color image signal is temporally divided into a single color wheel 44 and an R / G / B color ratio imposed on the color wheel 44 to form a curl shape fixed in the source stop member 46 A single AMA panel 48 that optically modulates and optically modulates the light beam based on the components of the AMA panel 48, a light beam modulated and reflected by the AMA panel 48 to be incident on the projection lens 54 through an independent reflector path, And a reflecting mirror member 50 as shown in Fig.

Description

투사형 화상표시장치의 광학계The optical system of the projection type image display apparatus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명의 바람직한 예에 따른 투사형 화상표시장치의 광학계를 나타낸 도면이다.FIG. 2 is a diagram showing an optical system of a projection type image display apparatus according to a preferred example of the present invention.

Claims (2)

광원(40)에서 방사된 광비임을 소오스 스톱부재(46)에서 정형화하여 컬러화상신호의 R/G/B컬러성분에 의거하여 광변조에서 투사렌즈를 통해 스크린상에 투사되도록 된 투사형 화상표시장치에 채용되는 광학계에 있어서, 상기 광원(40)에서 방사된 광비임을 소정의 시차적인 주기로 R/G/B컬러 비임화하는 단일의 컬러분리수단(44)과, 상기 컬러분리수단(44)에서 R/G/B컬러비임화되어 상기 소오스 스톱부재(46)에서 정형화된 컬러비임을 시차적으로 상기 컬러화상신호의 R/G/B컬러 성분분석에 의거하여 광로조절해서 광변조하는 단일의 AMA패널(48), 상기 AMA패널(48)에서 광변조되어 반사되는 컬러비임 대해 독립적인 반사경로에 의해 상기 투사렌즈(54)에 입사되도록 하는 광반사미러부재(50)를 갖추어 구성된 것을 특징으로 하는 투사형 화상표시장치의 광학계.The light source 40 emits a light beam, which is shaped by the source stop member 46 and projected on the screen through the projection lens in the light modulation based on the R / G / B color components of the color image signal The optical system according to claim 1, further comprising: a single color separating means (44) for separating the light emitted from the light source (40) into an R / G / B color ratio at a predetermined time period; A single AMA panel (not shown) for optically modulating the color beams stereoscopically shaped by the source stop member 46 in a G / B color non-dimming manner by optical path control based on R / G / B color component analysis of the color image signal 48), and a light reflecting mirror member (50) for causing the color beam reflected and optically modulated by the AMA panel (48) to be incident on the projection lens (54) by an independent reflecting mirror path Optical system of display. 제1항에 있어서, 상기 광반사미러부재(50)는 상기 AMA패널(48)에 대해 일정한 곡률의 원주곡면을 갖는 미러부재로 구성된 것을 특징으로 하는 투사형 화상표시장치의 광학계.The optical system of the projection type image display apparatus according to claim 1, characterized in that the light reflecting mirror member (50) is composed of a mirror member having a curvature of curvature with respect to the AMA panel (48).
KR1019960025571A 1996-06-29 1996-06-29 The optic system of projecting display apparatus KR100199874B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960025571A KR100199874B1 (en) 1996-06-29 1996-06-29 The optic system of projecting display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960025571A KR100199874B1 (en) 1996-06-29 1996-06-29 The optic system of projecting display apparatus

Publications (2)

Publication Number Publication Date
KR980007769A true KR980007769A (en) 1998-03-30
KR100199874B1 KR100199874B1 (en) 1999-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960025571A KR100199874B1 (en) 1996-06-29 1996-06-29 The optic system of projecting display apparatus

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KR (1) KR100199874B1 (en)

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KR100199874B1 (en) 1999-06-15

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