KR970025077A - Optical system of projection image display device - Google Patents

Optical system of projection image display device Download PDF

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Publication number
KR970025077A
KR970025077A KR1019950037473A KR19950037473A KR970025077A KR 970025077 A KR970025077 A KR 970025077A KR 1019950037473 A KR1019950037473 A KR 1019950037473A KR 19950037473 A KR19950037473 A KR 19950037473A KR 970025077 A KR970025077 A KR 970025077A
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KR
South Korea
Prior art keywords
optical path
light
blue
red
path controller
Prior art date
Application number
KR1019950037473A
Other languages
Korean (ko)
Other versions
KR0164181B1 (en
Inventor
양진세
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950037473A priority Critical patent/KR0164181B1/en
Publication of KR970025077A publication Critical patent/KR970025077A/en
Application granted granted Critical
Publication of KR0164181B1 publication Critical patent/KR0164181B1/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
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/023—Catoptric systems, e.g. image erecting and reversing system for extending or folding an optical path, e.g. delay lines
    • 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
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • 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
    • 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

Abstract

본 발명은 투사스톱에 적색 청색 및 녹색광만을 각각 투과시키는 적색, 청색 및 녹색필터부를 형성시키고, 광로조절기는 적색, 청색 및 녹색픽셀에 해당하는 픽셀들의 틸팅방향올 서로 달리하여 제조된 투사형화상표시 장치의 광하계에 관한 것으로, 그 구성은 고휘도의 백색광을 방사하는 광원(11)과, 상기 광원으로부터 방사된 광을 반사시키는 반사거울(12)과, 상기 반사거울(12)로부터 반사된 입사광을 소정신호에 따라 화소에 대응하도록 광로를 조절하는 광로조절기(40)와, 상기 광로조절기(40)로부터 광로가 조절된 광의 광로에 위치하여 광을 투과/차단시키는 투사스톱(50)과, 상기 광로조절기(40)로부터 광로가 조절되어 입사된 광을 스크린으로 투사시키는 투사렌즈(15)로 구성된 투사형화상표시장치의 광학계에 있어서, 상기 광로조절기(40)는 소정신호에 따라 입사광의 광로를 조절하여 각각 적색, 청색 및 녹색픽셀에 해당하는 픽셀들의 틸팅방향을 다르게 하여 광을 반사시킬 수 있도록 AMA패널(40a)에 미러어레이(40c)가 형성되어 있고, 상기 투사스톱(50)은 상기 광로조절기(40)로부터 광로가 조절된 적색 청색 및 녹색광을 각각 투과시킬 수 있도록 필터부(50a, 50b, 50c)가 형성된 것이다.The present invention forms a red, blue, and green filter portion for transmitting only red, blue, and green light to the projection stop, and the optical path controller is a projection image display device manufactured by different tilting directions of pixels corresponding to red, blue, and green pixels. Of the light source 11, a reflection mirror 12 reflecting light emitted from the light source, and incident light reflected from the reflection mirror 12. An optical path controller 40 for adjusting an optical path to correspond to a pixel according to a signal, a projection stop 50 positioned in an optical path of the optical path controlled by the optical path controller 40 to transmit / block light, and the optical path controller In the optical system of the projection image display device composed of the projection lens 15 for projecting the incident light to the screen by adjusting the optical path from the 40, the optical path controller 40 is A mirror array 40c is formed on the AMA panel 40a so as to reflect the light by adjusting the light path of the incident light according to the arc and changing the tilting direction of the pixels corresponding to the red, blue, and green pixels, respectively. The stop 50 has filter units 50a, 50b, and 50c formed to transmit the red, blue, and green light of which the optical path is controlled from the optical path controller 40, respectively.

Description

투사형 화상표시장치의 광학계Optical system of projection image display device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 투사형화상표시장치의 광학계에 있어서의 투사스톱과 광로조절기에서의 광의 작용을 개략적으로 나타낸 도면.2 is a view schematically showing the operation of the projection stop and the light in the optical path controller in the optical system of the projection image display device according to the present invention.

Claims (1)

고휘도의 백색광을 방사하는 광원(11)과, 상기 광원으로부터 방사된 광을 반사시키는 반사거울(12)과, 상기 반사거울(12)로부터 반사된 입사광을 소정신호에 따라 화소에 대응하도록 광로를 조절하는 광로조절기(40)와, 상기 광로조절기(40)로부터 광로가 조절된 광의 광로에 위치하여 광을 투과/차단시키는 투사스톱(50)과, 상기 광로조절기(40)로부터 광로가 조절되어 입사된 광을 스크린으로 투사시키는 투사렌즈(15)로 구성된 투사형 화상표시장치의 광학계에 있어서, 상기 광로조절기(40)는 소저신호에 따라 입사광의 광로를 조절하여 각각 적색, 청색 및 녹색픽셀에 해당하는 픽셀의 틸팅방향을 서로 달리하여 제조됨으로써 광을 반사시킬 수 있도록 AMA패널(40a)에 미러어레이(40c)가 형성되어 있고, 상기 투사스톱(50)은 상기 광로조절기(40)로부터 광로가 조절된 적색, 청색 및 녹색광을 각각 투과시킬 수 있도록 필터부(50a, 50b, 50c)가 형성된 것을 특징으로 하는 투사형화상표시장치의 광학계.The optical path is adjusted so that the light source 11 emits high brightness white light, the reflection mirror 12 reflecting the light emitted from the light source, and the incident light reflected from the reflection mirror 12 correspond to the pixel according to a predetermined signal. An optical path controller 40, a projection stop 50 positioned in an optical path of the optical path controlled by the optical path controller 40, and transmitting / blocking light, and an optical path controlled by the optical path controller 40 In the optical system of the projection type image display device composed of the projection lens 15 for projecting light to the screen, the optical path controller 40 adjusts the optical path of the incident light in accordance with the noise signal, the pixels corresponding to the red, blue and green pixels, respectively The mirror array 40c is formed on the AMA panel 40a so that the light can be reflected by being manufactured with different tilting directions of the light, and the projection stop 50 has an optical path from the optical path controller 40. The red, the optical system of the projection type image display apparatus, a filter unit characterized in that (50a, 50b, 50c) are formed to be respectively transmitted through the blue and green light.
KR1019950037473A 1995-10-27 1995-10-27 Optical system for projector KR0164181B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950037473A KR0164181B1 (en) 1995-10-27 1995-10-27 Optical system for projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950037473A KR0164181B1 (en) 1995-10-27 1995-10-27 Optical system for projector

Publications (2)

Publication Number Publication Date
KR970025077A true KR970025077A (en) 1997-05-30
KR0164181B1 KR0164181B1 (en) 1999-01-15

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ID=19431530

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950037473A KR0164181B1 (en) 1995-10-27 1995-10-27 Optical system for projector

Country Status (1)

Country Link
KR (1) KR0164181B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100762137B1 (en) * 2005-02-28 2007-10-02 엘지전자 주식회사 Projector with double color wheel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100762137B1 (en) * 2005-02-28 2007-10-02 엘지전자 주식회사 Projector with double color wheel

Also Published As

Publication number Publication date
KR0164181B1 (en) 1999-01-15

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