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KR960011506A - 콘트라스트 증대를 위한 조명 장치 - Google Patents

콘트라스트 증대를 위한 조명 장치 Download PDF

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Publication number
KR960011506A
KR960011506A KR1019940024770A KR19940024770A KR960011506A KR 960011506 A KR960011506 A KR 960011506A KR 1019940024770 A KR1019940024770 A KR 1019940024770A KR 19940024770 A KR19940024770 A KR 19940024770A KR 960011506 A KR960011506 A KR 960011506A
Authority
KR
South Korea
Prior art keywords
lens array
light
lighting device
convex lens
contrast
Prior art date
Application number
KR1019940024770A
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English (en)
Other versions
KR0147602B1 (ko
Inventor
전기욱
Original Assignee
김광호
삼성전자 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.)
Filing date
Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019940024770A priority Critical patent/KR0147602B1/ko
Publication of KR960011506A publication Critical patent/KR960011506A/ko
Application granted granted Critical
Publication of KR0147602B1 publication Critical patent/KR0147602B1/ko

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/003—Lens or lenticular sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

본 발명은 콘트라스트 증대를 위한 조명 장치에 관한 것으로, 상세하게는 램프(광원)으로부터의 출사 빔을 포물면형 반사경 및 렌즈어레이를 사용하여 평행화된 빔을 출사시키는 콘트라스트 증대를 위한 조명 장치에 관한 것이다.
즉, 본 발명에 따른 콘트라스트 증대를 위한 조명 장치는 한 쌍의 볼록렌즈 어레이와 그 사이에 볼록렌즈 어레이의 촛점에 대응하는 점에 홀을 가진 광 차단막을 설치함으로써, 잡광을 제거한 평행광 만을 엄선하여 액정 또는 필름에 투과시켜 영상을 얻으므로 콘트라스트가 명확한 영상을 얻을 수 있는 효과가 있다.

Description

콘트라스트 증대를 위한 조명 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 렌즈 어레이로 이루어진 콘트라스트 증대를 위한 조명 장치의 단면도이다.

Claims (4)

  1. 광원과 평행광을 만들어 주기 위한 포물면형 반사경을 구비한 조명 장치에 있어서, 상기 평행광을 소정 개수 촛점으로 집속시키는 제1의 볼록렌즈어레이; 상기 제1의 렌즈 어레이의 초점들에 대응하는 홀을 가진 광 차단판; 그리고 집속되어 상기 홀을 통과한 빛을 원래의 평행광 형태로 만들어 주는 제2의 볼록렌즈 어레이를 구비하여 된 것을 특징으로 하는 콘트라스트 증대를 위한 조명 장치.
  2. 제1항에 있어서, 상기 광 차단판은 광 반사막이 코팅된 반사경으로 이루어진 것을 특징으로 하는 콘트라스트 증대를 위한 조명 장치.
  3. 제1항에 있어서, 상기 제1의 볼록렌즈 어레이 및 상기 제2의 볼록렌즈 어레이는 같은 촛점거리를 가지는 것을 특징으로 하는 콘트라스트 증대를 위한 조명 장치.
  4. 제1항에 있어서, 상기 제1의 렌즈 어레이 및 상기 제2의 렌즈 어레이는 상기 광차단판을 중심으로 같은 거리에 위치하는 것을 특징으로 하는 콘트라스트 증대를 위한 조명 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940024770A 1994-09-29 1994-09-29 콘트라스트 증대를 위한 조명 장치 KR0147602B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940024770A KR0147602B1 (ko) 1994-09-29 1994-09-29 콘트라스트 증대를 위한 조명 장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940024770A KR0147602B1 (ko) 1994-09-29 1994-09-29 콘트라스트 증대를 위한 조명 장치

Publications (2)

Publication Number Publication Date
KR960011506A true KR960011506A (ko) 1996-04-20
KR0147602B1 KR0147602B1 (ko) 1998-09-15

Family

ID=19393947

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940024770A KR0147602B1 (ko) 1994-09-29 1994-09-29 콘트라스트 증대를 위한 조명 장치

Country Status (1)

Country Link
KR (1) KR0147602B1 (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100235300B1 (ko) * 1996-12-24 1999-12-15 김영환 액정 프로젝터의 화면 밝기 제어장치
KR100238802B1 (ko) * 1996-11-28 2000-01-15 전주범 투사형 화상 표시 장치 및 이를 이용한 투사 방법
CN114133148A (zh) * 2021-12-08 2022-03-04 苏州市职业大学 光纤着色油墨固化腔

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100238802B1 (ko) * 1996-11-28 2000-01-15 전주범 투사형 화상 표시 장치 및 이를 이용한 투사 방법
KR100235300B1 (ko) * 1996-12-24 1999-12-15 김영환 액정 프로젝터의 화면 밝기 제어장치
CN114133148A (zh) * 2021-12-08 2022-03-04 苏州市职业大学 光纤着色油墨固化腔

Also Published As

Publication number Publication date
KR0147602B1 (ko) 1998-09-15

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