DE69418502D1 - Vorrichtung zur Hintergrund-Beleuchtung - Google Patents
Vorrichtung zur Hintergrund-BeleuchtungInfo
- Publication number
- DE69418502D1 DE69418502D1 DE69418502T DE69418502T DE69418502D1 DE 69418502 D1 DE69418502 D1 DE 69418502D1 DE 69418502 T DE69418502 T DE 69418502T DE 69418502 T DE69418502 T DE 69418502T DE 69418502 D1 DE69418502 D1 DE 69418502D1
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
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 true DE69418502D1 (de) | 1999-06-24 |
DE69418502T2 DE69418502T2 (de) | 2000-02-24 |
Family
ID=26350917
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69418499T Expired - Lifetime DE69418499T2 (de) | 1993-02-01 | 1994-01-31 | Hintergrundbeleuchtungseinrichtung |
DE69418502T Expired - Fee Related DE69418502T2 (de) | 1993-02-01 | 1994-01-31 | Vorrichtung zur Hintergrund-Beleuchtung |
Family Applications Before (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) | DE69418499T2 (de) |
Families Citing this family (95)
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 |
KR0158247B1 (ko) * | 1993-01-19 | 1999-03-20 | 미따라이 하지메 | 도광체와, 이 도광체를 갖는 조명 장치, 그리고 이 조명 장치를 갖는 화상 판독장치 및 정보 처리 장치 |
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 |
KR100383431B1 (ko) * | 1995-06-23 | 2003-07-16 | 후루까와덴끼고오교 가부시끼가이샤 | 광반사판 |
US5613751A (en) | 1995-06-27 | 1997-03-25 | Lumitex, Inc. | Light emitting panel assemblies |
US6712481B2 (en) * | 1995-06-27 | 2004-03-30 | Solid State Opto Limited | 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 |
EP0878720B2 (de) | 1996-09-24 | 2011-06-22 | Seiko Epson Corporation | 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 |
US6193399B1 (en) | 1997-12-09 | 2001-02-27 | Cooper Automotive Products, Inc. | Optical waveguide structures for vehicle lighting |
US6168302B1 (en) | 1997-12-09 | 2001-01-02 | Cooper Automotive Products, Inc. | Hybrid distributed lighting system for a vehicle |
EP1057049B1 (de) | 1998-02-18 | 2008-10-01 | Minnesota Mining And Manufacturing Company | Optischer film |
US6224237B1 (en) * | 1998-04-16 | 2001-05-01 | Honeywell International Inc. | Structure for achieving a linear light source geometry |
US6186649B1 (en) | 1998-04-16 | 2001-02-13 | Honeywell International Inc. | Linear illumination sources and systems |
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 |
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 |
US6447135B1 (en) | 1999-10-08 | 2002-09-10 | 3M Innovative Properties Company | Lightguide having a directly secured reflector and method of making the same |
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 |
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GB0031611D0 (en) * | 2000-12-21 | 2001-02-07 | Ineos Acrylics Uk Ltd | Edge lit illumination devices |
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JP4191052B2 (ja) * | 2002-04-16 | 2008-12-03 | サムスン エレクトロニクス カンパニー リミテッド | 両方向光出射バックライト組立体及びこれを用いる液晶表示装置 |
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CN102341734B (zh) | 2009-03-05 | 2017-04-19 | Iti苏格兰有限公司 | 导光体 |
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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 |
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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 |
DE69120349T2 (de) * | 1990-06-19 | 1996-10-31 | Enplas Corp | Gerät für eine flächenartige Lichtquelle |
WO1992004648A1 (en) * | 1990-09-12 | 1992-03-19 | Mitsubishi Rayon Co., Ltd. | Element of plane source of light |
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 |
-
1994
- 1994-01-31 EP EP97108521A patent/EP0797045B1/de not_active Expired - Lifetime
- 1994-01-31 EP EP94101423A patent/EP0609816B1/de not_active Expired - Lifetime
- 1994-01-31 DE DE69418499T patent/DE69418499T2/de not_active Expired - Lifetime
- 1994-01-31 DE DE69418502T patent/DE69418502T2/de not_active Expired - Fee Related
- 1994-02-01 KR KR1019940001809A patent/KR100309850B1/ko not_active IP Right Cessation
- 1994-02-01 US US08/189,753 patent/US5521797A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0609816A2 (de) | 1994-08-10 |
KR100309850B1 (ko) | 2001-12-15 |
EP0797045B1 (de) | 1999-05-12 |
EP0797045A1 (de) | 1997-09-24 |
EP0609816B1 (de) | 1999-05-19 |
US5521797A (en) | 1996-05-28 |
DE69418502T2 (de) | 2000-02-24 |
KR940020157A (ko) | 1994-09-15 |
DE69418499D1 (de) | 1999-06-17 |
DE69418499T2 (de) | 2000-02-10 |
EP0609816A3 (de) | 1995-05-24 |
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