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KR890008587A - 면광원 소자 - Google Patents

면광원 소자 Download PDF

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Publication number
KR890008587A
KR890008587A KR1019880014868A KR880014868A KR890008587A KR 890008587 A KR890008587 A KR 890008587A KR 1019880014868 A KR1019880014868 A KR 1019880014868A KR 880014868 A KR880014868 A KR 880014868A KR 890008587 A KR890008587 A KR 890008587A
Authority
KR
South Korea
Prior art keywords
light
light source
source device
lenses
outgoing
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
KR1019880014868A
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English (en)
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KR100319327B1 (ko
Inventor
마꼬또 오에
이쯔세이 지바
Original Assignee
나가이 야따로
미쯔비시 레이욘 가부시끼 가이샤
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 of KR890008587A publication Critical patent/KR890008587A/ko
Priority to KR1019980039844A priority Critical patent/KR100241829B1/ko
Application granted granted Critical
Publication of KR100319327B1 publication Critical patent/KR100319327B1/ko
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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 
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • 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
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/007—Incandescent lamp or gas discharge lamp
    • G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube
    • 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
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

내용 없음

Description

면광원 소자
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제5(a) 도는 본 발명의 면광원 소자에 의해 방출된 광의 분포각을 측정하는 방법을 도시한 정면도이고,
제7(a) 및 7(b) 도는 램프 장치와 본 발명의 면광원 소자의 제1요소를 각각 도시한 투시도 및 단면도.

Claims (16)

  1. 면광원 소자에 있어서, 최소한 한 종단면에 광 입사면과 상기 광 입사면에 직교하여 연장되어 있는 제1광 출사면을 갖고, 또한 상기 제1광 출사면의 대항면에 설치된 반사층을 부가적으로 갖는 제1요소와, 상기 제1요소에 의한 출사광을 수신하는 광입사면과 출사광을 소정의 방향으로 향하게 하는 제2광 출사면을 갖는 제2요소를 구비하고, 방향 기능을 갖는 상기 제1요소의 제1광 출사면 및 대향면은 광의 방향에 대해 경사방향으로 상기 제1광 출사면을 통해 출사되도록 입사광을 상기 광 입사면을 통하게 하고, 다수개의 프리즘 유니트를 갖는 상기 제2요소는 제2요소의 광 입사면상에 형성된 것을 특징으로 하는 면광원소자.
  2. 제1항에 있어서, 상기 제1요소의 제1광 출사면 또는 대향면은 지향성에 기여하도록 상기 제1광 출사면 또는 대향면에 다수개의 렌즈가 형성된 것을 특징으로하는 면광원소자.
  3. 제2항에 있어서, 상기 다수개의 렌즈 유니트는 볼록한 실린더형 렌즈인 것을 특징으로 하는 면광원 소자.
  4. 제2항에 있어서, 상기 다수개의 렌즈는 오목한 실린더형 렌즈인 것을 특징으로 하는 면광원 소자.
  5. 제2항에 있어서, 상기 다수개의 렌즈는 삼각주형 렌즈인 것을 특징으로 하는 면광원 소자.
  6. 제2항에 있어서, 상기 다수개의 렌즈는 다각주형 렌즈인 것을 특징으로 하는 면광원 소자.
  7. 제2항에 있어서, 상기 다수개의 렌즈는 비등방성 렌즈인 것을 특징으로 하는 면광원 소자.
  8. 제1항에 있어서, 상기 제1요소 제1출사광 표면과/ 또는 대향면은 상기 반사층판과 실제로 평행 연장되고 방향기능에 기여하는 복제면을 갖는 것을 특징으로 하는 면광원 소자.
  9. 제8항에 있어서, 상기 제1요소의 복제면상의 헤이즈는 30% 또는 그 이상인 것을 특징으로 하는 면광원 소자.
  10. 제1항에 있어서, 상기 제1요소의 두 대향면 단부에 광 입사면 쌍을 갖는 것을 특징으로 하는 면광원 소자.
  11. 제1항에 있어서, 상기 제1요소 아크릴 수지 재료로 제조된 것을 특징으로 하는 면광원 소자.
  12. 제1항에 있어서, 상기 제1요소는 폴리카보네이트 수지 재료로 제조된 것을 특징으로 하는 면광원 소자.
  13. 제1항에 있어서, 상기 제2요소는 아크릴 수지 재료로 제조된 것을 특징으로 하는 면광원 소자.
  14. 제1항에 있어서, 상기 제2요소는 폴리카보네이트 수지 재료인 것을 특징으로 하는 면광원 소자.
  15. 제1항에 있어서, 상기 제1요소의 출사광 방향은 제1요소의 상기광 입사면으로부터 광방향으로의 범선에 대해 45°와 같거나 크고 90°보다 작은 것을 특징으로 하는 면광원 소자.
  16. 제1항에 있어서, 상기 제2요소로부터의 출사광 방향은 상기 제1요소의 광 입사면으로부터 광방향으로의 범선에 대해 0°내지 20°범위에 있는 것을 특징으로 하는 면광원 소자.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880014868A 1987-11-12 1988-11-12 면광원유닛 Expired - Lifetime KR100319327B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980039844A KR100241829B1 (en) 1987-11-12 1998-09-25 Flat light source unit

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP28428987 1987-11-12
JP62-284289 1987-11-12
JP13439388 1988-06-02
JP63-134393 1988-06-02

Publications (2)

Publication Number Publication Date
KR890008587A true KR890008587A (ko) 1989-07-12
KR100319327B1 KR100319327B1 (ko) 2002-04-22

Family

ID=26468520

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880014868A Expired - Lifetime KR100319327B1 (ko) 1987-11-12 1988-11-12 면광원유닛

Country Status (5)

Country Link
US (3) US5126882A (ko)
EP (1) EP0317250B1 (ko)
KR (1) KR100319327B1 (ko)
CA (1) CA1312320C (ko)
DE (1) DE3889297T2 (ko)

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DE3889297T2 (de) 1994-08-04
CA1312320C (en) 1993-01-05
KR100319327B1 (ko) 2002-04-22
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US5126882A (en) 1992-06-30
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DE3889297D1 (de) 1994-06-01

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