FR2652667B1 - - Google Patents

Info

Publication number
FR2652667B1
FR2652667B1 FR9011966A FR9011966A FR2652667B1 FR 2652667 B1 FR2652667 B1 FR 2652667B1 FR 9011966 A FR9011966 A FR 9011966A FR 9011966 A FR9011966 A FR 9011966A FR 2652667 B1 FR2652667 B1 FR 2652667B1
Authority
FR
France
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.)
Expired - Fee Related
Application number
FR9011966A
Other languages
French (fr)
Other versions
FR2652667A1 (fr
Inventor
Shinzo Murase
Hirokazu Matsui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEITAKU SYST KK
Original Assignee
MEITAKU SYST KK
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 MEITAKU SYST KK filed Critical MEITAKU SYST KK
Publication of FR2652667A1 publication Critical patent/FR2652667A1/fr
Application granted granted Critical
Publication of FR2652667B1 publication Critical patent/FR2652667B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • 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
    • 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
    • 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
    • G09F2013/1809—Achieving homogeneous illumination using a non-homogeneous front window
    • G09F2013/1813—Achieving homogeneous illumination using a non-homogeneous front window provided with a coating showing a pattern of dots of variable density

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)
FR9011966A 1989-09-30 1990-09-28 Panneau a source lumineuse superficielle. Granted FR2652667A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1256820A JP2620981B2 (ja) 1989-09-30 1989-09-30 液晶バックライト用エッジライトパネル

Publications (2)

Publication Number Publication Date
FR2652667A1 FR2652667A1 (fr) 1991-04-05
FR2652667B1 true FR2652667B1 (ja) 1995-03-24

Family

ID=17297889

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9011966A Granted FR2652667A1 (fr) 1989-09-30 1990-09-28 Panneau a source lumineuse superficielle.

Country Status (5)

Country Link
JP (1) JP2620981B2 (ja)
KR (1) KR940001116B1 (ja)
DE (1) DE4030808C2 (ja)
FR (1) FR2652667A1 (ja)
GB (1) GB2238377B (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262928A (en) * 1991-02-21 1993-11-16 Tosoh Corporation Back lighting device
DE4135506C2 (de) * 1991-10-28 1994-06-16 Triumph Adler Ag Hintergrundbeleuchtete Anzeigevorrichtung und Verfahren zur Herstellung einer Streufolie für eine solche Anzeigevorrichtung
JP2580451Y2 (ja) * 1992-02-20 1998-09-10 株式会社エンプラス 面光源装置
DE4240122A1 (ja) * 1991-11-30 1993-06-03 Meitaku Syst Kk
GB9317086D0 (en) * 1993-08-17 1993-09-29 Robertson Stowe Ltd Planar illumination apparatus
TW454922U (en) * 1994-03-23 2001-09-11 Tosoh Corp Rear side irradiation light
DE19902473A1 (de) * 1998-12-22 2000-07-06 Mannesmann Vdo Ag Anzeigeeinrichtung
JP2001117516A (ja) 1999-10-15 2001-04-27 Ichiyosha:Kk 面発光ディスプレーパネル
JP2007234522A (ja) * 2006-03-03 2007-09-13 Minebea Co Ltd 放電灯点灯装置
DE102009051534A1 (de) 2009-10-31 2011-05-05 GM Global Technology Operations LLC, Detroit Lichtleiterplatte für eine Beleuchtungsvorrichtung, Beleuchtungsvorrichtung, Anzeigevorrichtung und Fahrzeug mit einer Anzeigevorrichtung sowie Verfahren zur Herstellung einer Lichtleiterplatte

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7222668U (de) * 1972-10-05 Schmidt A Leuchte
US3043947A (en) * 1960-04-08 1962-07-10 Gen Electric Light distributing lens system
US3328570A (en) * 1965-04-09 1967-06-27 Gen Electric Illuminated panel member
JPS57128383A (en) * 1981-02-02 1982-08-09 Mitsubishi Electric Corp Surface lighting apparatus
JPH0620232B2 (ja) * 1981-03-30 1994-03-16 キヤノン株式会社 画像処理装置
JPS5885434A (ja) * 1981-11-17 1983-05-21 Canon Inc 画像処理装置
JPS58114569A (ja) * 1981-12-26 1983-07-07 Canon Inc カラー画像処理装置
JPS5952969A (ja) * 1982-09-20 1984-03-27 Nippon Telegr & Teleph Corp <Ntt> カラ−記録における中間調記録処理方式
JPH0675990B2 (ja) * 1983-12-28 1994-09-28 キヤノン株式会社 カラ−画像形成方法
JPS60205576A (ja) * 1984-03-30 1985-10-17 東芝ライテック株式会社 照明装置
US4714983A (en) * 1985-06-10 1987-12-22 Motorola, Inc. Uniform emission backlight
JPS62902A (ja) * 1985-06-26 1987-01-06 Mitsubishi Rayon Co Ltd 光拡散器
FR2597642B1 (fr) * 1986-04-18 1990-01-12 Blanchet Pierre Dispositif d'affichage lumineux de documents translucides
JPH0412552Y2 (ja) * 1986-05-27 1992-03-26
GB2196100B (en) * 1986-10-01 1990-07-04 Mitsubishi Rayon Co Light diffusing device
JPH0742909B2 (ja) * 1987-02-25 1995-05-15 三菱電機株式会社 始動電動機のスイツチ制御装置
JPH0748093B2 (ja) * 1987-12-25 1995-05-24 三菱レイヨン株式会社 面光源素子
JPS63309918A (ja) * 1988-04-25 1988-12-19 Tatsuji Mizobe バックライト装置
JPH0670882B2 (ja) * 1988-08-23 1994-09-07 株式会社明拓システム 単板使用エッジライトパネル
JPH02245788A (ja) * 1989-03-20 1990-10-01 Hitachi Ltd 薄型平面状均一輝度光源装置
JPH0311502A (ja) * 1989-06-08 1991-01-18 Fujitsu Ltd 照明装置
JPH0389295A (ja) * 1989-08-31 1991-04-15 Nissha Printing Co Ltd 面光源装置

Also Published As

Publication number Publication date
GB9021186D0 (en) 1990-11-14
DE4030808C2 (de) 1996-07-18
KR910006907A (ko) 1991-04-30
JPH03118594A (ja) 1991-05-21
DE4030808A1 (de) 1991-04-11
GB2238377B (en) 1993-04-21
JP2620981B2 (ja) 1997-06-18
KR940001116B1 (ko) 1994-02-14
GB2238377A (en) 1991-05-29
FR2652667A1 (fr) 1991-04-05

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Legal Events

Date Code Title Description
CA Change of address
ST Notification of lapse