DE69418502T2 - Vorrichtung zur Hintergrund-Beleuchtung - Google Patents

Vorrichtung zur Hintergrund-Beleuchtung

Info

Publication number
DE69418502T2
DE69418502T2 DE69418502T DE69418502T DE69418502T2 DE 69418502 T2 DE69418502 T2 DE 69418502T2 DE 69418502 T DE69418502 T DE 69418502T DE 69418502 T DE69418502 T DE 69418502T DE 69418502 T2 DE69418502 T2 DE 69418502T2
Authority
DE
Germany
Prior art keywords
lighting device
background lighting
background
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
DE69418502T
Other languages
English (en)
Other versions
DE69418502D1 (de
Inventor
Keiji Kashima
Yukio Inagaki
Naoki Yoshida
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.)
Tosoh Corp
Original Assignee
Tosoh Corp
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 Tosoh Corp filed Critical Tosoh Corp
Publication of DE69418502D1 publication Critical patent/DE69418502D1/de
Application granted granted Critical
Publication of DE69418502T2 publication Critical patent/DE69418502T2/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
    • G02B6/005—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
    • G02B6/0051—Diffusing 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
    • 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
    • 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
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • 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
    • G09F2013/05—Constructional details indicating exit way or orientation
    • 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
DE69418502T 1993-02-01 1994-01-31 Vorrichtung zur Hintergrund-Beleuchtung Expired - Fee Related DE69418502T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1488693 1993-02-01
JP10109393 1993-04-27

Publications (2)

Publication Number Publication Date
DE69418502D1 DE69418502D1 (de) 1999-06-24
DE69418502T2 true DE69418502T2 (de) 2000-02-24

Family

ID=26350917

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69418502T Expired - Fee Related DE69418502T2 (de) 1993-02-01 1994-01-31 Vorrichtung zur Hintergrund-Beleuchtung
DE69418499T Expired - Lifetime DE69418499T2 (de) 1993-02-01 1994-01-31 Hintergrundbeleuchtungseinrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69418499T Expired - Lifetime DE69418499T2 (de) 1993-02-01 1994-01-31 Hintergrundbeleuchtungseinrichtung

Country Status (4)

Country Link
US (1) US5521797A (de)
EP (2) EP0797045B1 (de)
KR (1) KR100309850B1 (de)
DE (2) DE69418502T2 (de)

Families Citing this family (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6426807B1 (en) 1993-01-19 2002-07-30 Canon Kabushiki Kaisha Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device
EP0607930B1 (de) * 1993-01-19 2008-11-19 Canon Kabushiki Kaisha Längliche Beleuchtungsvorrichtung und Informationsauslesevorrichtung, die eine solche Beleuchtungsvorrichtung aufweist
JP2778659B2 (ja) 1993-12-24 1998-07-23 キヤノン株式会社 導光体及び照明装置及び画像読取装置
TW334523B (en) * 1994-03-02 1998-06-21 Toso Kk Back light
JP2742880B2 (ja) * 1994-08-12 1998-04-22 大日本印刷株式会社 面光源、それを用いた表示装置、及びそれらに用いる光拡散シート
DE69423044T2 (de) * 1994-09-23 2000-06-08 Enplas Corp Flächenartige Lichtquelle
JP3178304B2 (ja) * 1994-11-11 2001-06-18 株式会社デンソー 指針装置
EP0778477B1 (de) * 1995-06-23 2002-10-02 The Furukawa Electric Co., Ltd. Lichtrefletkierende platte
US6712481B2 (en) 1995-06-27 2004-03-30 Solid State Opto Limited Light emitting panel assemblies
US5613751A (en) 1995-06-27 1997-03-25 Lumitex, Inc. Light emitting panel assemblies
US5631754A (en) * 1995-10-20 1997-05-20 Physical Optics Corporation Holographic high contrast viewing screen embedded in a liquid crystal display
JP3769327B2 (ja) * 1996-07-23 2006-04-26 大日本印刷株式会社 プリズムレンズシート、バックライトシステム及び液晶表示装置
JP3271695B2 (ja) * 1996-09-20 2002-04-02 シャープ株式会社 バックライト光源および液晶表示装置
DE69724411T3 (de) 1996-09-24 2012-05-16 Seiko Epson Corp. Beleuchtungsvorrichtung und anzeige welche diese verwendet
JPH10104435A (ja) * 1996-09-27 1998-04-24 Meitaku Syst:Kk エッジライトパネル用バ−光源及びこれを用いた照明標識装置
US5815225A (en) * 1997-01-22 1998-09-29 Gateway 2000, Inc. Lighting apparatus for a portable computer with illumination apertures
KR19980042692A (ko) * 1997-11-24 1998-08-17 우에마쯔도미지 도광판 및 이를 사용하는 백 라이트 장치
US6168302B1 (en) 1997-12-09 2001-01-02 Cooper Automotive Products, Inc. Hybrid distributed lighting system for a vehicle
US6193399B1 (en) 1997-12-09 2001-02-27 Cooper Automotive Products, Inc. Optical waveguide structures for vehicle lighting
JP4347521B2 (ja) 1998-02-18 2009-10-21 スリーエム カンパニー 光学フィルム
US6186649B1 (en) 1998-04-16 2001-02-13 Honeywell International Inc. Linear illumination sources and systems
US6224237B1 (en) 1998-04-16 2001-05-01 Honeywell International Inc. Structure for achieving a linear light source geometry
US6271941B1 (en) 1998-05-22 2001-08-07 Eastman Kodak Company Illuminant head assembly for a photographic film image scanner
US6430339B1 (en) 1998-10-15 2002-08-06 Federal-Mogul World Wide, Inc. Low profile waveguide system
US6447135B1 (en) 1999-10-08 2002-09-10 3M Innovative Properties Company Lightguide having a directly secured reflector and method of making the same
US7046905B1 (en) * 1999-10-08 2006-05-16 3M Innovative Properties Company Blacklight with structured surfaces
US6356391B1 (en) 1999-10-08 2002-03-12 3M Innovative Properties Company Optical film with variable angle prisms
US6845212B2 (en) 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures
AUPQ399199A0 (en) * 1999-11-11 1999-12-02 Aristocrat Leisure Industries Pty Ltd Diffuser panel particularly for use in belly door of gaming machine
JP2001229725A (ja) * 2000-02-16 2001-08-24 Citizen Electronics Co Ltd 導光板
US6612729B1 (en) * 2000-03-16 2003-09-02 3M Innovative Properties Company Illumination device
US6621973B1 (en) 2000-03-16 2003-09-16 3M Innovative Properties Company Light guide with protective outer sleeve
US6581286B2 (en) 2000-04-05 2003-06-24 3M Innovative Properties Company Method of making tool to produce optical film
US6655810B2 (en) 2000-06-21 2003-12-02 Fujitsu Display Technologies Corporation Lighting unit
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
AU2001284844A1 (en) 2000-08-18 2002-03-04 Reflexite Corporation Differentially cured materials and process for forming same
GB0031611D0 (en) * 2000-12-21 2001-02-07 Ineos Acrylics Uk Ltd Edge lit illumination devices
JP2003331628A (ja) * 2002-03-05 2003-11-21 Seiko Epson Corp 照明装置、液晶装置及び電子機器
US7237939B2 (en) * 2002-04-16 2007-07-03 Samsung Electronics Co., Ltd. Backlight assembly and liquid crystal display apparatus using the same
US20030206256A1 (en) * 2002-05-06 2003-11-06 Drain Kieran F. Display device with backlight
US6910783B2 (en) * 2002-10-04 2005-06-28 Lumitex, Inc. Transparent light emitting members and method of manufacture
US20070248307A1 (en) * 2002-10-04 2007-10-25 Page David J Transparent light emitting members and method of manufacture
JP4205932B2 (ja) * 2002-11-19 2009-01-07 アルプス電気株式会社 照明装置及び液晶表示装置
TWI252938B (en) * 2002-11-22 2006-04-11 Hon Hai Prec Ind Co Ltd Light guide plate and backlight system using the same
TW585275U (en) * 2002-12-17 2004-04-21 Hon Hai Prec Ind Co Ltd Light source system
TWI273291B (en) * 2002-12-17 2007-02-11 Hon Hai Prec Ind Co Ltd Surface light source and light guide plate used therein
US7236217B2 (en) * 2003-01-16 2007-06-26 3M Innovative Properties Company Package of optical films with zero-gap bond outside viewing area
JP3873256B2 (ja) * 2003-01-24 2007-01-24 ミネベア株式会社 面状照明装置
JP4026135B2 (ja) * 2003-02-20 2007-12-26 ミネベア株式会社 面状照明装置
EP1625430A2 (de) * 2003-05-02 2006-02-15 Reflexite Corporation Lichtumlenkende optische strukturen
US7413336B2 (en) * 2003-08-29 2008-08-19 3M Innovative Properties Company Adhesive stacking for multiple optical films
US7147358B2 (en) * 2003-12-31 2006-12-12 3M Innovative Properties Company Cover removal tab for optical products
US7223009B2 (en) * 2004-02-20 2007-05-29 Eta Sa Manufacture Horlogere Suisse Backlighting device for an information display element of a portable object
EP1566686A1 (de) * 2004-02-20 2005-08-24 ETA SA Manufacture Horlogère Suisse Hintergrundbeleuchtungsvorrichtung für Anzeigeelement
US7706050B2 (en) 2004-03-05 2010-04-27 Qualcomm Mems Technologies, Inc. Integrated modulator illumination
US20080285308A1 (en) * 2004-03-23 2008-11-20 Donald Burris Clary Light Guide and Apparatus For Using Light Guide
US20050238852A1 (en) * 2004-04-23 2005-10-27 Naoki Nakayama Optical products for displays
CN1914549A (zh) 2004-10-09 2007-02-14 第一毛织株式会社 用于液晶显示器背光单元的导光板以及使用该导光板的液晶显示器背光单元
US7163308B2 (en) * 2004-11-22 2007-01-16 Ferrari John S Hand worn illuminated framework
US7278771B2 (en) * 2004-11-22 2007-10-09 3M Innovative Properties Company Optical film
US20060150966A1 (en) * 2005-01-12 2006-07-13 Jamieson Donald R Fireplace assemblies with antireflective screens
US7339635B2 (en) * 2005-01-14 2008-03-04 3M Innovative Properties Company Pre-stacked optical films with adhesive layer
JP5067747B2 (ja) * 2005-08-08 2012-11-07 独立行政法人産業技術総合研究所 光線指向性化ガラス基板及びそれを用いた照明装置
CN100405164C (zh) * 2005-08-18 2008-07-23 鸿富锦精密工业（深圳）有限公司 导光板、背光模组和双面液晶显示装置
JP4467491B2 (ja) * 2005-09-06 2010-05-26 シャープ株式会社 バックライト装置，液晶表示装置
US7777832B2 (en) * 2005-11-18 2010-08-17 3M Innovative Properties Company Multi-function enhancement film
US20070086207A1 (en) * 2006-01-13 2007-04-19 Optical Research Associates Display systems including light enhancing structures with arrays of elongate features
US7545569B2 (en) * 2006-01-13 2009-06-09 Avery Dennison Corporation Optical apparatus with flipped compound prism structures
US7674028B2 (en) * 2006-01-13 2010-03-09 Avery Dennison Corporation Light enhancing structures with multiple arrays of elongate features of varying characteristics
US7366393B2 (en) * 2006-01-13 2008-04-29 Optical Research Associates Light enhancing structures with three or more arrays of elongate features
US7866871B2 (en) * 2006-01-13 2011-01-11 Avery Dennison Corporation Light enhancing structures with a plurality of arrays of elongate features
US8409088B2 (en) 2006-01-18 2013-04-02 Invuity, Inc. Retractor illumination system
KR20070109134A (ko) * 2006-05-09 2007-11-15 엘지전자 주식회사 프리즘 시트, 이를 구비한 백라이트 유닛 및 액정표시장치
US8047987B2 (en) 2006-05-26 2011-11-01 Invuity, Inc. Blade insert illuminator
US8262381B2 (en) * 2006-06-22 2012-09-11 Sabic Innovative Plastics Ip B.V. Mastering tools and systems and methods for forming a cell on the mastering tools
US7807938B2 (en) * 2006-06-22 2010-10-05 Sabic Innovative Plastics Ip B.V. Mastering tools and systems and methods for forming a plurality of cells on the mastering tools
KR100793534B1 (ko) * 2006-07-04 2008-01-14 삼성에스디아이 주식회사 액정 표시 장치의 백라이트 유니트 및 백라이트 유니트의도광판 제조 방법
TW200804931A (en) * 2006-07-14 2008-01-16 Glory Sun Opto Electronics Corp Optical diffusing sheet and backlight module
JP2008170739A (ja) * 2007-01-12 2008-07-24 Hitachi Displays Ltd 液晶表示装置
US20080188277A1 (en) * 2007-02-01 2008-08-07 Ritter Janice E Electronic Game Device And Method Of Using The Same
CN101295045A (zh) * 2007-04-27 2008-10-29 鸿富锦精密工业（深圳）有限公司 背光模组及其光学板
EP2162770B1 (de) 2007-06-14 2012-08-08 Avery Dennison Corporation Beleuchtetes grafisches und informationsdisplay
US8088066B2 (en) 2007-10-24 2012-01-03 Invuity, Inc. Blade insert illuminator
GB2454928B (en) * 2007-11-23 2009-11-18 Iti Scotland Ltd Light guides
US20090185389A1 (en) * 2008-01-18 2009-07-23 Osram Sylvania Inc Light guide for a lamp
TW201007233A (en) * 2008-08-08 2010-02-16 Coretronic Corp Light guide plate and edge-lighting type backlight module
US11382711B2 (en) 2008-08-13 2022-07-12 Invuity, Inc. Cyclo olefin polymer and copolymer medical devices
GB2464916B (en) 2008-10-21 2013-07-31 Iti Scotland Ltd Light Guides
EP2404201B1 (de) 2009-03-05 2016-07-27 Design LED Products Limited Lichtwellenleiter
WO2010100505A1 (en) 2009-03-05 2010-09-10 Iti Scotland Limited Light guides
US8284476B2 (en) * 2009-12-11 2012-10-09 Qualcomm Mems Technologies, Inc. Backlight utilizing desiccant light turning array
CN105353449A (zh) * 2015-11-13 2016-02-24 重庆鑫翎创福光电科技股份有限公司 一种双面点状微结构pmma导光板
CN105546362B (zh) * 2016-01-27 2020-11-17 江西依瓦塔光电科技有限公司 一种形成均匀方形光斑的led光学系统
US11846798B2 (en) * 2022-04-01 2023-12-19 Valve Corporation Head-mounted display devices with non-rectangular backlight

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155684A (ja) * 1984-08-27 1986-03-20 三菱レイヨン株式会社 光拡散装置
JPS6229003A (ja) * 1985-07-30 1987-02-07 株式会社トキメック 背面反射式光拡散装置
GB2196100B (en) * 1986-10-01 1990-07-04 Mitsubishi Rayon Co Light diffusing device
JPH0192701A (ja) * 1987-10-02 1989-04-12 Nissha Printing Co Ltd パターン化された光拡散シート
US4924356A (en) * 1988-12-07 1990-05-08 General Electric Company Illumination system for a display device
JPH02257188A (ja) * 1989-03-30 1990-10-17 Dai Ichi Seiko Co Ltd 光拡散装置
JPH039306A (ja) * 1989-06-07 1991-01-17 Mitsubishi Petrochem Co Ltd バックライト装置
JP2520739B2 (ja) * 1989-08-30 1996-07-31 株式会社エンプラス 照明装置
US5134549A (en) * 1990-06-19 1992-07-28 Enplas Corporation Surface light source device
EP0500960B1 (de) * 1990-09-12 1995-12-20 Mitsubishi Rayon Co., Ltd. Flächenartiges beleuchtungselement
JPH04356015A (ja) * 1991-03-22 1992-12-09 Tosoh Corp バックライト
US5394255A (en) * 1992-01-27 1995-02-28 Sekisui Kagaku Kogyo Kabushiki Kaisha Liquid crystal display using a plurality of light adjusting sheets angled at 5 degrees or more
JP3006306B2 (ja) * 1992-09-16 2000-02-07 インターナショナル・ビジネス・マシーンズ・コーポレイション 光学的フイルム及び上記光学的フイルムを用いた液晶表示装置

Also Published As

Publication number Publication date
EP0609816A3 (de) 1995-05-24
DE69418502D1 (de) 1999-06-24
KR940020157A (ko) 1994-09-15
KR100309850B1 (ko) 2001-12-15
EP0609816A2 (de) 1994-08-10
EP0797045A1 (de) 1997-09-24
DE69418499D1 (de) 1999-06-17
EP0797045B1 (de) 1999-05-12
EP0609816B1 (de) 1999-05-19
DE69418499T2 (de) 2000-02-10
US5521797A (en) 1996-05-28

Similar Documents

Publication Publication Date Title
DE69418502T2 (de) Vorrichtung zur Hintergrund-Beleuchtung
DE69220870D1 (de) Vorrichtung zur rückseitigen Beleuchtung
DE69226391D1 (de) Vorrichtung zur rückseitigen Beleuchtung
DE69212662D1 (de) Vorrichtung zur Hinterbeleuchtung
DE69629423D1 (de) Vorrichtung zur Flimmerreduzierung
DE69405587T2 (de) Tracheostoma vorrichtung
DE69427226D1 (de) Vorrichtung zur injektion
DE69424629T2 (de) Vorrichtung zur Anzeige von Diagrammen
DE69227159D1 (de) Vorrichtung zur Helligkeitskorrektur
DE69532615D1 (de) Licht-emittierende Vorrichtung
DE59509949D1 (de) Vorrichtung zur strahlteilung
DE69419223D1 (de) Vorrichtung zur Sprachverbesserung
DE69426058D1 (de) Vorrichtung zur optischen Beleuchtung
DE59603273D1 (de) Vorrichtung zur Kälteerzeugung
DE59407690D1 (de) Vorrichtung zur änderung der pedalarmlänge
DE69404659T2 (de) Vorrichtung zur detektion
DE69312180T2 (de) Vorrichtung zur Elektrobeschichtung
DE9300760U1 (de) Vorrichtung zur Selbstverteidigung
DE9308928U1 (de) Vorrichtung zur Regenwassernutzung
DE9313687U1 (de) Vorrichtung zur Reflexzonenmassage
DE9317497U1 (de) Vorrichtung zur Selbstverfertigung von Cigaretten
DE29511539U1 (de) Vorrichtung zur Präsentation von Objekten
DE29512476U1 (de) Vorrichtung zur Verlagerung von Personen
DE9309376U1 (de) Vorrichtung zur Klassifizierung flächiger Gegenstände
DE9410888U1 (de) Vorrichtung zur Veranschaulichung von Gegenständen

Legal Events

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