KR900014923A - 광원장치 - Google Patents

광원장치 Download PDF

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Publication number
KR900014923A
KR900014923A KR1019900003758A KR900003758A KR900014923A KR 900014923 A KR900014923 A KR 900014923A KR 1019900003758 A KR1019900003758 A KR 1019900003758A KR 900003758 A KR900003758 A KR 900003758A KR 900014923 A KR900014923 A KR 900014923A
Authority
KR
South Korea
Prior art keywords
light source
rough surface
rough
source device
center
Prior art date
Application number
KR1019900003758A
Other languages
English (en)
Inventor
슈스게 엔도
나오후미 아오야마
도시히꼬 야부유찌
Original Assignee
미따 가쯔시게
가부시기가이샤 히다찌세이사구쇼
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 미따 가쯔시게, 가부시기가이샤 히다찌세이사구쇼 filed Critical 미따 가쯔시게
Publication of KR900014923A publication Critical patent/KR900014923A/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
    • G02B6/0033—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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • 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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0422—Reflectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • G09F2013/145—Arrangements of reflectors therein curved reflectors
    • 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
    • G09F2013/1804—Achieving homogeneous illumination
    • G09F2013/1827—Prismatic window
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S385/00—Optical waveguides
    • Y10S385/901—Illuminating or display apparatus

Landscapes

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

Abstract

내용 없음.

Description

광원장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 한 실시예인 광원장치를 사용한 액정표시장치의 단면도,
제2도는, 본 발명에 의한 과원장치를 액정표시장치에 적용한 경우를 설명한 분해사시도,
제3도는 본 발명의 실시예인 액정표시장치의 이면사시도.

Claims (6)

  1. 특정굴절율의 투명매체로 이루어지는 도광체와, 도광체의 대향하는 2변의 단면부를 따라 각각 배치한 봉형상광원을 적어도 가진 광원장치에 있어서, 상기 단면부에 직각인 방향의 도광체단면의 형상을, 광원으로부터 광이 입사하는 양단부에서 두껍게, 중앙부에서 얇게, 저면은 평탄하고, 광이 출사하는 면은, 중앙부에서는 출사쪽에 오목한, 그 양쪽에서는 출사측에 볼록한 곡면으로 한 것을 특징으로 하는 광원장치.
  2. 제1항에 있어서, 상기 도광체의 광을 출사하는 쪽의 면은, 상기 단면부간의 중앙부부근은 미세한 조면(粗面)으로, 그 양쪽은 이것보다도 거칠은 조면으로한 것을 특징으로 하는 광원장치.
  3. 제2항에 있어서, 상기 도광체에 있어서, 미세한 조면으로부터 거칠은 조면으로 조도가 연속적으로 변화하는 것을 특징으로 하는 광원장치.
  4. 제1항에 있어서, 상기 도광체에 있어서, 상기 저면은, 상기 단면부간의 중앙부부근은 미세한 조면으로, 그 양쪽은 이것보다도 거칠은 조면으로 한 것을 특징으로 하는 광원장치.
  5. 제4항에 있어서, 상기 도광체에 있어서, 미세한 조면으로부터 거칠은 조면으로, 조도가 연속적으로 변화하는 것을 특징으로 하는 광원장치.
  6. 제1항 내지 제5항에 있어서, 상기 봉형상광원은, 상기 2변의 단면부의 각각에 복수배치되어 있는 것을 특징으로 하는 광원장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900003758A 1989-03-20 1990-03-20 광원장치 KR900014923A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1066145A JPH02245788A (ja) 1989-03-20 1989-03-20 薄型平面状均一輝度光源装置
JP1-66145 1989-03-20

Publications (1)

Publication Number Publication Date
KR900014923A true KR900014923A (ko) 1990-10-25

Family

ID=13307404

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900003758A KR900014923A (ko) 1989-03-20 1990-03-20 광원장치

Country Status (4)

Country Link
US (1) US5123077A (ko)
JP (1) JPH02245788A (ko)
KR (1) KR900014923A (ko)
DE (1) DE4008953A1 (ko)

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Also Published As

Publication number Publication date
US5123077A (en) 1992-06-16
DE4008953A1 (de) 1990-09-27
JPH02245788A (ja) 1990-10-01

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