GB2238377B - Surface luminous source panel - Google Patents

Surface luminous source panel

Info

Publication number
GB2238377B
GB2238377B GB9021186A GB9021186A GB2238377B GB 2238377 B GB2238377 B GB 2238377B GB 9021186 A GB9021186 A GB 9021186A GB 9021186 A GB9021186 A GB 9021186A GB 2238377 B GB2238377 B GB 2238377B
Authority
GB
United Kingdom
Prior art keywords
luminous source
source panel
surface luminous
panel
source
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.)
Expired - Fee Related
Application number
GB9021186A
Other languages
English (en)
Other versions
GB2238377A (en
GB9021186D0 (en
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
Meitaku Shisutemu KK
Original Assignee
MEITAKU SYST KK
Meitaku Shisutemu 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, Meitaku Shisutemu KK filed Critical MEITAKU SYST KK
Publication of GB9021186D0 publication Critical patent/GB9021186D0/en
Publication of GB2238377A publication Critical patent/GB2238377A/en
Application granted granted Critical
Publication of GB2238377B publication Critical patent/GB2238377B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (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)
GB9021186A 1989-09-30 1990-09-28 Surface luminous source panel Expired - Fee Related GB2238377B (en)

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 (3)

Publication Number Publication Date
GB9021186D0 GB9021186D0 (en) 1990-11-14
GB2238377A GB2238377A (en) 1991-05-29
GB2238377B true GB2238377B (en) 1993-04-21

Family

ID=17297889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9021186A Expired - Fee Related GB2238377B (en) 1989-09-30 1990-09-28 Surface luminous source panel

Country Status (5)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69212662T2 (de) * 1991-02-21 1997-02-20 Tosoh Corp Vorrichtung zur Hinterbeleuchtung
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
FR2684476A1 (fr) * 1991-11-30 1993-06-04 Meitaku Syst Kk Panneau a eclairage lateral et procede de fabrication de celui-ci.
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 (xx) * 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
JP2620981B2 (ja) 1997-06-18
GB2238377A (en) 1991-05-29
JPH03118594A (ja) 1991-05-21
GB9021186D0 (en) 1990-11-14
FR2652667A1 (fr) 1991-04-05
DE4030808A1 (de) 1991-04-11
FR2652667B1 (xx) 1995-03-24
KR910006907A (ko) 1991-04-30
DE4030808C2 (de) 1996-07-18
KR940001116B1 (ko) 1994-02-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960928