DE69115678T2 - Flächenartiges beleuchtungselement - Google Patents

Flächenartiges beleuchtungselement

Info

Publication number
DE69115678T2
DE69115678T2 DE69115678T DE69115678T DE69115678T2 DE 69115678 T2 DE69115678 T2 DE 69115678T2 DE 69115678 T DE69115678 T DE 69115678T DE 69115678 T DE69115678 T DE 69115678T DE 69115678 T2 DE69115678 T2 DE 69115678T2
Authority
DE
Germany
Prior art keywords
lighting element
area lighting
area
lighting
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
DE69115678T
Other languages
English (en)
Other versions
DE69115678D1 (de
Inventor
Makoto Ohe
Issei Chiba
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Application granted granted Critical
Publication of DE69115678D1 publication Critical patent/DE69115678D1/de
Publication of DE69115678T2 publication Critical patent/DE69115678T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G02B6/0058—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
    • 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
    • G02B6/0013—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
    • 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
    • G02B6/0035—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
    • G02B6/0035—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
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface 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
    • G02B6/0066—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
DE69115678T 1990-09-12 1991-09-12 Flächenartiges beleuchtungselement Expired - Fee Related DE69115678T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24153890 1990-09-12
PCT/JP1991/001211 WO1992004648A1 (en) 1990-09-12 1991-09-12 Element of plane source of light

Publications (2)

Publication Number Publication Date
DE69115678D1 DE69115678D1 (de) 1996-02-01
DE69115678T2 true DE69115678T2 (de) 1996-07-18

Family

ID=17075846

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69115678T Expired - Fee Related DE69115678T2 (de) 1990-09-12 1991-09-12 Flächenartiges beleuchtungselement

Country Status (6)

Country Link
US (1) US5550676A (de)
EP (1) EP0500960B1 (de)
KR (1) KR0141088B1 (de)
CA (1) CA2068422A1 (de)
DE (1) DE69115678T2 (de)
WO (1) WO1992004648A1 (de)

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US5515184A (en) * 1991-11-12 1996-05-07 The University Of Alabama In Huntsville Waveguide hologram illuminators
CA2097109C (en) * 1992-06-01 2000-01-11 Shozo Kokawa Liquid crystal display
USRE37377E1 (en) 1992-10-09 2001-09-18 Asahi Glass Company, Ltd. LCD device including an illumination device having a polarized light separating sheet between a light guide and the display
DE69418499T2 (de) * 1993-02-01 2000-02-10 Tosoh Corp Hintergrundbeleuchtungseinrichtung
AU6524694A (en) * 1993-03-29 1994-10-24 Precision Lamp, Inc. Flat thin uniform thickness large area light source
US5863113A (en) * 1993-06-22 1999-01-26 Mitsubishi Rayon Co., Ltd. Plane light source unit
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US5396350A (en) * 1993-11-05 1995-03-07 Alliedsignal Inc. Backlighting apparatus employing an array of microprisms
US5521725A (en) * 1993-11-05 1996-05-28 Alliedsignal Inc. Illumination system employing an array of microprisms
US5428468A (en) * 1993-11-05 1995-06-27 Alliedsignal Inc. Illumination system employing an array of microprisms
US6129439A (en) * 1993-11-05 2000-10-10 Alliedsignal Inc. Illumination system employing an array of multi-faceted microprisms
US5555329A (en) * 1993-11-05 1996-09-10 Alliesignal Inc. Light directing optical structure
US5598281A (en) * 1993-11-19 1997-01-28 Alliedsignal Inc. Backlight assembly for improved illumination employing tapered optical elements
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DE69526998T2 (de) * 1994-03-25 2002-12-19 Novartis Ag Licht-Diffusor und Herstellungsverfahren eines Licht-Diffusors
JPH0868910A (ja) * 1994-08-29 1996-03-12 Enplas Corp 面光源装置用導光板及びその製造方法
US6080467A (en) * 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
US5613751A (en) 1995-06-27 1997-03-25 Lumitex, Inc. Light emitting panel assemblies
US7108414B2 (en) 1995-06-27 2006-09-19 Solid State Opto Limited Light emitting panel assemblies
US6712481B2 (en) 1995-06-27 2004-03-30 Solid State Opto Limited Light emitting panel assemblies
ID15863A (id) * 1996-02-01 1997-08-14 Mitsubishi Rayon Co Perangkat sumber cahaya permukaan, dan perangkat tayangan kristal cair, peralatan tayangan tanda serta peralatan tayangan tanda lalu-lintas yang menggunakan perangkat sumber cahaya permukaan tersebut
US5897184A (en) * 1996-07-02 1999-04-27 Dimension Technologies, Inc. Reduced-thickness backlighter for autostereoscopic display and display using the backlighter
JPH10144122A (ja) * 1996-11-06 1998-05-29 Enplas Corp サイドライト型面光源装置
US5903392A (en) * 1997-05-19 1999-05-11 Dai Nippon Printing Co., Ltd. Reflecting screen
US6079844A (en) * 1997-06-10 2000-06-27 The University Of British Columbia High efficiency high intensity backlighting of graphic displays
JP2002533892A (ja) * 1998-12-29 2002-10-08 オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング 側方に斜めの光入力結合部を有する光源素子
DE19860695B4 (de) * 1998-12-29 2011-04-28 Siemens Ag Lichtquellenelement mit schräggestellter Lichtaustrittsfläche
DE19860696B4 (de) * 1998-12-29 2009-07-02 Siemens Ag Lichtquellenelement mit seitlicher schräger Lichteinkopplung
DE19860697A1 (de) * 1998-12-29 2000-08-10 Osram Opto Semiconductors Gmbh Verfahren zur Herstellung eines flachen Lichtleitermoduls
US6752505B2 (en) * 1999-02-23 2004-06-22 Solid State Opto Limited Light redirecting films and film systems
US6386721B1 (en) * 1999-07-08 2002-05-14 Physical Optics Corporation Light pipe having one or more integral diffusers
US6570710B1 (en) * 1999-11-12 2003-05-27 Reflexite Corporation Subwavelength optical microstructure light collimating films
US7046271B2 (en) * 2000-01-25 2006-05-16 X3D Technologies Gmbh Method and system for the three-dimensional representation
DE10053868C2 (de) * 2000-03-15 2002-10-31 4D Vision Gmbh Anordnung zur zwei- oder dreidimensionalen Darstellung von Bildern einer Szene oder eines Gegenstandes
KR20020001594A (ko) * 2000-06-26 2002-01-09 가마이 고로 도광판, 면광원 장치 및 반사형 액정 표시 장치
US7230764B2 (en) * 2000-08-18 2007-06-12 Reflexite Corporation Differentially-cured materials and process for forming same
US20040190102A1 (en) * 2000-08-18 2004-09-30 Mullen Patrick W. Differentially-cured materials and process for forming same
US7250122B2 (en) * 2000-08-18 2007-07-31 Reflexite Corporation Differentially cured materials and process for forming same
US6833962B2 (en) * 2000-12-04 2004-12-21 Richard F. Bergen Light altering device
TW574509B (en) * 2001-02-14 2004-02-01 Yuka Denshi Co Ltd Light guide body, light reflective sheet and surface light source device and liquid crystal device using the light reflective sheet, and the manufacturing method of light reflective sheet
KR20040012393A (ko) * 2002-08-03 2004-02-11 삼성전자주식회사 백라이트 어셈블리 및 이를 갖는 액정 표시 장치
TW575185U (en) * 2002-11-15 2004-02-01 Hon Hai Prec Ind Co Ltd Backlight system and light guide plate thereof
TWI273291B (en) * 2002-12-17 2007-02-11 Hon Hai Prec Ind Co Ltd Surface light source and light guide plate used therein
EP1625430A2 (de) * 2003-05-02 2006-02-15 Reflexite Corporation Lichtumlenkende optische strukturen
DE10325146A1 (de) 2003-05-30 2004-12-16 X3D Technologies Gmbh Verfahren und Anordnung zur räumlichen Darstellung
US20070201234A1 (en) * 2003-07-21 2007-08-30 Clemens Ottermann Luminous element
DE10336352B4 (de) * 2003-08-08 2007-02-08 Schott Ag Verfahren zur Herstellung von Streulichtstrukturen an flächigen Lichtleitern
JP4379786B2 (ja) * 2003-11-11 2009-12-09 株式会社エンプラス 面光源装置
JP2005183363A (ja) * 2003-11-25 2005-07-07 Sharp Corp 導光板、それを備えた照明装置、及び、液晶表示装置、並びに、導光板成形型
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TWI241441B (en) * 2004-08-13 2005-10-11 Innolux Display Corp Light guide plate
KR101189080B1 (ko) * 2005-01-24 2012-11-09 삼성디스플레이 주식회사 반사판과 이를 포함하는 액정표시장치
TWI330288B (en) * 2006-01-17 2010-09-11 Au Optronics Corp Backlight module
JP2008029804A (ja) * 2006-06-27 2008-02-14 Family Co Ltd マッサージ機
US7551243B2 (en) * 2006-11-21 2009-06-23 Honeywell International Inc. Lens for increased light distribution uniformity in an LCD backlight
DE102006060409B4 (de) 2006-12-20 2021-06-24 Osram Gmbh Verfahren zur Herstellung eines Lichtleiters
US20080188277A1 (en) 2007-02-01 2008-08-07 Ritter Janice E Electronic Game Device And Method Of Using The Same
US20090067194A1 (en) * 2007-09-11 2009-03-12 World Properties, Inc. Light guide with imprinted phosphor
US20090179870A1 (en) * 2008-01-16 2009-07-16 World Properties, Inc. Luminous touch screen with interstitial layers
JPWO2009157352A1 (ja) * 2008-06-23 2011-12-08 ソニー株式会社 面光源装置および表示装置
US20100142222A1 (en) * 2008-12-04 2010-06-10 World Properties, Inc. Light guide with refractive layer
JP2010205504A (ja) * 2009-03-02 2010-09-16 Hitachi Ltd バックライト装置及びこれを用いた映像表示装置
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Also Published As

Publication number Publication date
KR920702503A (ko) 1992-09-04
EP0500960A1 (de) 1992-09-02
US5550676A (en) 1996-08-27
EP0500960A4 (en) 1992-11-19
EP0500960B1 (de) 1995-12-20
DE69115678D1 (de) 1996-02-01
KR0141088B1 (ko) 1998-08-17
WO1992004648A1 (en) 1992-03-19
CA2068422A1 (en) 1992-03-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee