DE69306022T2 - Keilförmige Beleuchtungseinrichtung bestehend aus mehreren Schichten - Google Patents

Keilförmige Beleuchtungseinrichtung bestehend aus mehreren Schichten

Info

Publication number
DE69306022T2
DE69306022T2 DE69306022T DE69306022T DE69306022T2 DE 69306022 T2 DE69306022 T2 DE 69306022T2 DE 69306022 T DE69306022 T DE 69306022T DE 69306022 T DE69306022 T DE 69306022T DE 69306022 T2 DE69306022 T2 DE 69306022T2
Authority
DE
Germany
Prior art keywords
layer
index
wedge
lighting device
several layers
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
DE69306022T
Other languages
English (en)
Other versions
DE69306022D1 (de
Inventor
Benjamin E Jacobsen
Roland Winston
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE69306022D1 publication Critical patent/DE69306022D1/de
Publication of DE69306022T2 publication Critical patent/DE69306022T2/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
    • G02B6/0035—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
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • 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
    • 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
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • 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
    • G02B6/0033—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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement 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
    • 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
    • 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
DE69306022T 1992-03-23 1993-03-22 Keilförmige Beleuchtungseinrichtung bestehend aus mehreren Schichten Expired - Fee Related DE69306022T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/855,838 US5237641A (en) 1992-03-23 1992-03-23 Tapered multilayer luminaire devices

Publications (2)

Publication Number Publication Date
DE69306022D1 DE69306022D1 (de) 1997-01-02
DE69306022T2 true DE69306022T2 (de) 1997-03-13

Family

ID=25322204

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69306022T Expired - Fee Related DE69306022T2 (de) 1992-03-23 1993-03-22 Keilförmige Beleuchtungseinrichtung bestehend aus mehreren Schichten

Country Status (9)

Country Link
US (1) US5237641A (de)
EP (1) EP0562802B1 (de)
JP (1) JP2916063B2 (de)
AT (1) ATE145464T1 (de)
AU (1) AU3815093A (de)
DE (1) DE69306022T2 (de)
ES (1) ES2097445T3 (de)
TW (1) TW319352U (de)
WO (1) WO1993019390A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20116092U1 (de) * 2001-08-06 2002-12-19 Zumtobel Staff Gmbh Leuchte mit einem Leuchtenkörper aus lichtleitendem Material

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3025109B2 (ja) * 1992-03-11 2000-03-27 シャープ株式会社 光源および光源装置
US6002829A (en) 1992-03-23 1999-12-14 Minnesota Mining And Manufacturing Company Luminaire device
US5528720A (en) 1992-03-23 1996-06-18 Minnesota Mining And Manufacturing Co. Tapered multilayer luminaire devices
JPH0695112A (ja) * 1992-09-16 1994-04-08 Hitachi Ltd プリズムプレートおよびそれを用いた情報表示装置
US5390276A (en) * 1992-10-08 1995-02-14 Briteview Technologies Backlighting assembly utilizing microprisms and especially suitable for use with a liquid crystal display
EP0607930B1 (de) * 1993-01-19 2008-11-19 Canon Kabushiki Kaisha Längliche Beleuchtungsvorrichtung und Informationsauslesevorrichtung, die eine solche Beleuchtungsvorrichtung aufweist
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
US6129439A (en) * 1993-11-05 2000-10-10 Alliedsignal Inc. Illumination system employing an array of multi-faceted microprisms
US5521725A (en) * 1993-11-05 1996-05-28 Alliedsignal Inc. Illumination system employing an array of microprisms
US5555329A (en) * 1993-11-05 1996-09-10 Alliesignal Inc. Light directing optical structure
US5396350A (en) * 1993-11-05 1995-03-07 Alliedsignal Inc. Backlighting apparatus employing an array of microprisms
US5428468A (en) * 1993-11-05 1995-06-27 Alliedsignal Inc. Illumination system employing an array of microprisms
US5598281A (en) * 1993-11-19 1997-01-28 Alliedsignal Inc. Backlight assembly for improved illumination employing tapered optical elements
FR2716030B1 (fr) * 1994-02-10 1996-04-19 Philippe Brun Panneau notamment utilisable dans le domaine de la signalétique.
JP3694024B2 (ja) * 1994-04-11 2005-09-14 ミネソタ・マイニング・アンド・マニュファクチャリング・カンパニー テーパ付多層照明装置
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
US5481637A (en) * 1994-11-02 1996-01-02 The University Of British Columbia Hollow light guide for diffuse light
WO1996017272A1 (fr) * 1994-12-01 1996-06-06 Seiko Epson Corporation Element d'affichage a cristaux liquides et son procede de production
TW344032B (en) * 1995-01-27 1998-11-01 Mitsui Toatsu Chemicals Light reflective sheet and light reflector using it
WO1996027757A1 (en) * 1995-03-03 1996-09-12 Minnesota Mining And Manufacturing Company Light directing film having variable height structured surface and light directing article constructed therefrom
US5650865A (en) * 1995-03-21 1997-07-22 Hughes Electronics Holographic backlight for flat panel displays
US5699201A (en) * 1995-03-27 1997-12-16 Hewlett-Packard Co. Low-profile, high-gain, wide-field-of-view, non-imaging optics
JPH11508376A (ja) * 1995-06-26 1999-07-21 ミネソタ マイニング アンド マニュファクチャリング カンパニー 拡散反射多層偏光子および拡散反射多層反射鏡
US6080467A (en) * 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
BR9608724A (pt) 1995-06-26 1999-06-29 Minnesota Mining & Mfg Adesivo difusor de luz e dispositivo ótico
JP3286138B2 (ja) * 1995-08-03 2002-05-27 日東電工株式会社 導光板、面光源装置、偏光光源装置及び液晶表示装置
US6072551A (en) * 1996-02-14 2000-06-06 Physical Optics Corporation Backlight apparatus for illuminating a display with controlled light output characteristics
US5838403A (en) * 1996-02-14 1998-11-17 Physical Optics Corporation Liquid crystal display system with internally reflecting waveguide for backlighting and non-Lambertian diffusing
US5919551A (en) * 1996-04-12 1999-07-06 3M Innovative Properties Company Variable pitch structured optical film
JPH1073820A (ja) * 1996-09-02 1998-03-17 Dainippon Printing Co Ltd 非光拡散性導光板、レンズフィルム、および面光源装置
US6390626B2 (en) 1996-10-17 2002-05-21 Duke University Image projection system engine assembly
DE19646943A1 (de) * 1996-11-13 1998-05-14 Martin Hoerdum Flachbildschirm
US6473554B1 (en) 1996-12-12 2002-10-29 Teledyne Lighting And Display Products, Inc. Lighting apparatus having low profile
DE69836042T2 (de) * 1997-03-04 2007-02-22 Matsushita Electric Industrial Co., Ltd., Kadoma Lineare Beleuchtungsvorrichtung
US5903096A (en) * 1997-09-30 1999-05-11 Winsor Corporation Photoluminescent lamp with angled pins on internal channel walls
US5914560A (en) * 1997-09-30 1999-06-22 Winsor Corporation Wide illumination range photoluminescent lamp
US5999316A (en) 1997-12-06 1999-12-07 3M Innovative Properties Company Light valve with rotating polarizing element
US6100635A (en) * 1998-02-02 2000-08-08 Winsor Corporation Small, high efficiency planar fluorescent lamp
US6114809A (en) * 1998-02-02 2000-09-05 Winsor Corporation Planar fluorescent lamp with starter and heater circuit
US6075320A (en) * 1998-02-02 2000-06-13 Winsor Corporation Wide illumination range fluorescent lamp
US6091192A (en) * 1998-02-02 2000-07-18 Winsor Corporation Stress-relieved electroluminescent panel
US6127780A (en) * 1998-02-02 2000-10-03 Winsor Corporation Wide illumination range photoluminescent lamp
US6497939B1 (en) * 1998-02-03 2002-12-24 Nippon Zeon Co., Ltd. Flat plate and light guide plate
US6134092A (en) * 1998-04-08 2000-10-17 Teledyne Lighting And Display Products, Inc. Illumination device for non-emissive displays
US6220713B1 (en) 1998-10-23 2001-04-24 Compaq Computer Corporation Projection lens and system
US6239917B1 (en) 1998-10-23 2001-05-29 Duke University Thermalization using optical components in a lens system
US6280035B1 (en) 1998-10-23 2001-08-28 Duke University Lens design to eliminate color fringing
US6172816B1 (en) 1998-10-23 2001-01-09 Duke University Optical component adjustment for mitigating tolerance sensitivities
US6185041B1 (en) 1998-10-23 2001-02-06 Duke University Projection lens and system
US6172813B1 (en) 1998-10-23 2001-01-09 Duke University Projection lens and system including a reflecting linear polarizer
US6256447B1 (en) * 1998-12-31 2001-07-03 Physical Optics Corporation Backlight for correcting diagonal line distortion
US7364341B2 (en) * 1999-02-23 2008-04-29 Solid State Opto Limited Light redirecting films including non-interlockable optical elements
JP3377474B2 (ja) * 1999-10-05 2003-02-17 日本電信電話株式会社 光学素子および該光学素子を用いた表示装置
DE10006783A1 (de) * 2000-02-18 2001-09-06 Bosch Gmbh Robert Beleuchtungsvorrichtung für einen transmissiv betriebenen flachen Bildschirm
JP4471522B2 (ja) * 2000-03-15 2010-06-02 浜松ホトニクス株式会社 集光部品並びにこれを用いた光源モジュール、レーザー装置及び光信号増幅装置
PL343963A1 (en) * 2000-11-16 2002-05-20 Grzegorz Drozdowski Edge-illuminated optical device
US6368159B1 (en) * 2000-12-13 2002-04-09 Stewart Connector Systems, Inc. Light pipe for a modular jack
GB0101682D0 (en) * 2001-01-23 2001-03-07 Cambridge 3D Display Ltd Flat panel correction optics
DE10134278A1 (de) * 2001-07-13 2003-01-30 Spectral Ges Fuer Lichttechnik Leuchte
GB0118866D0 (en) * 2001-08-02 2001-09-26 Cambridge 3D Display Ltd Shaped taper flat panel display
US6948832B2 (en) 2002-09-10 2005-09-27 Honeywell International, Inc. Luminaire device
US8033706B1 (en) 2004-09-09 2011-10-11 Fusion Optix, Inc. Lightguide comprising a low refractive index region
CN100370329C (zh) * 2004-11-12 2008-02-20 清华大学 导光板和背光模组
CN100445827C (zh) * 2004-11-18 2008-12-24 清华大学 导光板和背光模组
GB0427607D0 (en) * 2004-12-16 2005-01-19 Microsharp Corp Ltd Structured optical film
US7180779B2 (en) * 2005-07-11 2007-02-20 Atmel Corporation Memory architecture with enhanced over-erase tolerant control gate scheme
US9384672B1 (en) * 2006-03-29 2016-07-05 Amazon Technologies, Inc. Handheld electronic book reader device having asymmetrical shape
US20070291510A1 (en) * 2006-06-15 2007-12-20 Wintek Corporation Backlight module and light guide plate thereof
CA2688214A1 (en) * 2007-05-11 2008-11-20 Rpo Pty Limited A transmissive body
EP2162770B1 (de) 2007-06-14 2012-08-08 Avery Dennison Corporation Beleuchtetes grafisches und informationsdisplay
US20100182801A1 (en) * 2007-07-04 2010-07-22 Dongguan Memtech Electronic Memtech Electronic Pro Printed ultra thin light guiding plate
US7664350B2 (en) * 2007-09-10 2010-02-16 Banyan Energy, Inc. Compact optics for concentration, aggregation and illumination of light energy
US8705914B2 (en) 2007-09-10 2014-04-22 Banyan Energy, Inc. Redirecting optics for concentration and illumination systems
US7672549B2 (en) * 2007-09-10 2010-03-02 Banyan Energy, Inc. Solar energy concentrator
US8412010B2 (en) 2007-09-10 2013-04-02 Banyan Energy, Inc. Compact optics for concentration and illumination systems
DE102007043190A1 (de) * 2007-09-11 2009-03-12 Osram Opto Semiconductors Gmbh Anzeigeeinrichtung und Tastenanordnung
JP2011512006A (ja) 2008-01-30 2011-04-14 デジタル オプティクス インターナショナル，リミティド ライアビリティ カンパニー 薄型照明システム
US8721149B2 (en) 2008-01-30 2014-05-13 Qualcomm Mems Technologies, Inc. Illumination device having a tapered light guide
US8761565B1 (en) 2009-04-16 2014-06-24 Fusion Optix, Inc. Arcuate lightguide and light emitting device comprising the same
KR20120030388A (ko) 2009-04-24 2012-03-28 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 기능 강화 구조체를 갖는 조명 기구
US8721152B2 (en) * 2009-05-01 2014-05-13 Abl Ip Holding Llc Light emitting devices and applications thereof
WO2010141388A1 (en) * 2009-06-01 2010-12-09 Qualcomm Mems Technologies, Inc. Front light based optical touch screen
TWI412804B (zh) * 2010-04-14 2013-10-21 Entire Technology Co Ltd 多層導光裝置
JP6148258B2 (ja) 2012-02-17 2017-06-14 スリーエム イノベイティブ プロパティズ カンパニー アナモルフィックライトガイド
EP2909531A1 (de) 2012-10-19 2015-08-26 3M Innovative Properties Company Beleuchtungsartikel

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2347665A (en) * 1941-03-04 1944-05-02 Christensen Geneva Bandy Internal reflection lighting means
US2712593A (en) * 1951-04-21 1955-07-05 Bendix Aviat Corp Edge illuminated dial
US3617109A (en) * 1969-09-23 1971-11-02 Bell Telephone Labor Inc Light guide coupling and scanning arrangement
US3752974A (en) * 1971-12-13 1973-08-14 Coastal Dynamics Corp Uniform illumination with edge lighting
US3832028A (en) * 1972-03-30 1974-08-27 Corning Glass Works Coupler for optical waveguide light source
DE2421337C2 (de) * 1974-05-02 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Modenwandler für optische Wellenleiter
US4059916A (en) * 1975-01-30 1977-11-29 Copal Company Limited Light diffusing device
US4240692A (en) * 1975-12-17 1980-12-23 The University Of Chicago Energy transmission
US4111538A (en) * 1976-02-25 1978-09-05 Xerox Corporation Projection system of high efficiency
US4114592A (en) * 1976-08-16 1978-09-19 The United States Of America As Represented By The United States Department Of Energy Cylindrical radiant energy direction device with refractive medium
US4161015A (en) * 1976-08-23 1979-07-10 Bausch & Lomb Incorporated Luminaire using a multilayer interference mirror
US4212048A (en) * 1978-06-16 1980-07-08 General Electric Company Illuminator for reflective dichroic liquid crystal displays
DE2827573C2 (de) * 1978-06-23 1983-02-03 Blaupunkt-Werke Gmbh, 3200 Hildesheim Großflächige Lichtquelle
US4257084A (en) * 1979-02-21 1981-03-17 Reynolds Christopher H Display device
US4373282A (en) * 1979-12-26 1983-02-15 Hughes Aircraft Company Thin-panel illuminator for front-lit displays
US4487481A (en) * 1980-03-24 1984-12-11 Epson Corporation Backlighted liquid crystal display
US4547043A (en) * 1980-07-25 1985-10-15 Penz Perry A Stacked LCD graphics display
JPS57139705A (en) * 1981-02-24 1982-08-28 Takashi Mori Optical radiator
US4453200A (en) * 1981-07-20 1984-06-05 Rockwell International Corporation Apparatus for lighting a passive display
US4528617A (en) * 1982-02-08 1985-07-09 Sheltered Workshop For The Disabled, Inc. Light distribution apparatus
US4573766A (en) * 1983-12-19 1986-03-04 Cordis Corporation LED Staggered back lighting panel for LCD module
JPS6134583A (ja) * 1984-07-26 1986-02-18 シャープ株式会社 照明装置
US4832458A (en) * 1984-08-28 1989-05-23 Talig Corporation Display for contrast enhancement
CA1243867A (en) * 1984-10-12 1988-11-01 National Research Council Of Canada Viewing angle colour sensitive lighting accessory
DE3605000A1 (de) * 1985-02-22 1986-09-04 Sharp Kk Beleuchtungsvorrichtung
JP2823156B2 (ja) * 1985-07-23 1998-11-11 キヤノン株式会社 ディスプレイ装置
US4747223A (en) * 1985-11-13 1988-05-31 Cesar Borda Mirrored communication system
US4799050A (en) * 1986-10-23 1989-01-17 Litton Systems Canada Limited Full color liquid crystal display
US4735495A (en) * 1986-12-12 1988-04-05 General Electric Co. Light source for liquid crystal display panels utilizing internally reflecting light pipes and integrating sphere
GB2198867A (en) * 1986-12-17 1988-06-22 Philips Electronic Associated A liquid crystal display illumination system
US4799137A (en) * 1987-03-24 1989-01-17 Minnesota Mining And Manufacturing Company Reflective film
DE8713875U1 (de) * 1987-10-15 1988-02-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US4765718A (en) * 1987-11-03 1988-08-23 General Electric Company Collimated light source for liquid crystal display utilizing internally reflecting light pipe collimator with offset angle correction
US4907132A (en) * 1988-03-22 1990-03-06 Lumitex, Inc. Light emitting panel assemblies and method of making same
US4950059A (en) * 1988-10-11 1990-08-21 General Electric Company Combination lamp and integrating sphere for efficiently coupling radiant energy from a gas discharge to a lightguide
US4998188A (en) * 1988-12-02 1991-03-05 Degelmann Paul G Wall mounted lighting fixture
DE3842900C1 (de) * 1988-12-16 1990-05-10 Krone Ag, 1000 Berlin, De
US4936529A (en) * 1988-12-29 1990-06-26 Railbase Technologies, Incorporated Device for detecting defective wheels on rail cars
US5005108A (en) * 1989-02-10 1991-04-02 Lumitex, Inc. Thin panel illuminator
US4974122A (en) * 1989-03-28 1990-11-27 Rockwell International Corporation Compact LCD luminaire
US5046829A (en) * 1989-05-01 1991-09-10 Motorola, Inc. Liquid crystal display backlighting apparatus having combined optical diffuser and shock dampening properties
US4974353A (en) * 1989-08-28 1990-12-04 The Staver Company Matrix display assembly having multiple point lighting
US5101325A (en) * 1990-03-20 1992-03-31 General Electric Company Uniform illumination of large, thin surfaces particularly suited for automotive applications
US5046805A (en) * 1990-07-16 1991-09-10 Simon Jerome H Tapered optical waveguides for uniform energy (light) distribution including energy bridging
US5050946A (en) * 1990-09-27 1991-09-24 Compaq Computer Corporation Faceted light pipe
JP2532748Y2 (ja) * 1991-11-26 1997-04-16 オーツタイヤ株式会社 導光板装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20116092U1 (de) * 2001-08-06 2002-12-19 Zumtobel Staff Gmbh Leuchte mit einem Leuchtenkörper aus lichtleitendem Material

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ES2097445T3 (es) 1997-04-01
AU3815093A (en) 1993-10-21
US5237641A (en) 1993-08-17
TW319352U (en) 1997-11-01
JPH0643325A (ja) 1994-02-18
JP2916063B2 (ja) 1999-07-05
EP0562802B1 (de) 1996-11-20
DE69306022D1 (de) 1997-01-02
EP0562802A1 (de) 1993-09-29
WO1993019390A1 (en) 1993-09-30
ATE145464T1 (de) 1996-12-15

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