JP2013502043A - ライトガイド - Google Patents
ライトガイド Download PDFInfo
- Publication number
- JP2013502043A JP2013502043A JP2012524826A JP2012524826A JP2013502043A JP 2013502043 A JP2013502043 A JP 2013502043A JP 2012524826 A JP2012524826 A JP 2012524826A JP 2012524826 A JP2012524826 A JP 2012524826A JP 2013502043 A JP2013502043 A JP 2013502043A
- Authority
- JP
- Japan
- Prior art keywords
- light guide
- flexible integrated
- structured
- pattern
- light
- 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.)
- Pending
Links
Images
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
- G02B6/0065—Manufacturing aspects; Material aspects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/082—Construction of plunger or mould for making solid articles, e.g. lenses having profiled, patterned or microstructured 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough 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
- G02B6/0013—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
- G02B6/0028—Light guide, e.g. taper
-
- 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
- G02B6/0058—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
- 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
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- G02B6/0045—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
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23322609P | 2009-08-12 | 2009-08-12 | |
| US61/233,226 | 2009-08-12 | ||
| PCT/US2010/045115 WO2011019785A1 (en) | 2009-08-12 | 2010-08-11 | Lightguide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2013502043A true JP2013502043A (ja) | 2013-01-17 |
| JP2013502043A5 JP2013502043A5 (enExample) | 2013-09-19 |
Family
ID=42946617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012524826A Pending JP2013502043A (ja) | 2009-08-12 | 2010-08-11 | ライトガイド |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US8882323B2 (enExample) |
| EP (1) | EP2464996A1 (enExample) |
| JP (1) | JP2013502043A (enExample) |
| KR (1) | KR101777885B1 (enExample) |
| CN (1) | CN102472865A (enExample) |
| WO (1) | WO2011019785A1 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019003888A (ja) * | 2017-06-19 | 2019-01-10 | パナソニックIpマネジメント株式会社 | 誘導灯装置 |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201008599D0 (en) * | 2010-05-24 | 2010-07-07 | Design Led Products Ltd | Light guide device |
| TWI520839B (zh) * | 2010-07-20 | 2016-02-11 | 國立成功大學 | 可撓性光學板的製造方法、其方法製成的可撓性光學板,及背光模組 |
| CN103459917B (zh) * | 2011-04-04 | 2016-06-22 | 阪本顺 | 导光板、导光板的制造方法以及导光板制造装置 |
| US10145606B2 (en) * | 2011-04-26 | 2018-12-04 | Seoul Semiconductor Co., Ltd. | Product lighting refrigeration door |
| CN103064144B (zh) * | 2011-10-24 | 2017-07-18 | 赛恩倍吉科技顾问(深圳)有限公司 | 导光板及发光装置 |
| KR101240358B1 (ko) * | 2012-08-27 | 2013-03-11 | 레이젠 주식회사 | 광산란긁힘결이 형성된 도광판 제조방법 |
| US9581751B2 (en) | 2013-01-30 | 2017-02-28 | Cree, Inc. | Optical waveguide and lamp including same |
| US9442243B2 (en) | 2013-01-30 | 2016-09-13 | Cree, Inc. | Waveguide bodies including redirection features and methods of producing same |
| US9869432B2 (en) | 2013-01-30 | 2018-01-16 | Cree, Inc. | Luminaires using waveguide bodies and optical elements |
| US9625638B2 (en) | 2013-03-15 | 2017-04-18 | Cree, Inc. | Optical waveguide body |
| US9690029B2 (en) | 2013-01-30 | 2017-06-27 | Cree, Inc. | Optical waveguides and luminaires incorporating same |
| US9291320B2 (en) | 2013-01-30 | 2016-03-22 | Cree, Inc. | Consolidated troffer |
| US9366396B2 (en) | 2013-01-30 | 2016-06-14 | Cree, Inc. | Optical waveguide and lamp including same |
| JP5440989B1 (ja) | 2013-02-25 | 2014-03-12 | ミネベア株式会社 | 面状照明装置 |
| US9798072B2 (en) | 2013-03-15 | 2017-10-24 | Cree, Inc. | Optical element and method of forming an optical element |
| US10379278B2 (en) * | 2013-03-15 | 2019-08-13 | Ideal Industries Lighting Llc | Outdoor and/or enclosed structure LED luminaire outdoor and/or enclosed structure LED luminaire having outward illumination |
| US10400984B2 (en) | 2013-03-15 | 2019-09-03 | Cree, Inc. | LED light fixture and unitary optic member therefor |
| US10209429B2 (en) | 2013-03-15 | 2019-02-19 | Cree, Inc. | Luminaire with selectable luminous intensity pattern |
| US10436970B2 (en) | 2013-03-15 | 2019-10-08 | Ideal Industries Lighting Llc | Shaped optical waveguide bodies |
| US9366799B2 (en) | 2013-03-15 | 2016-06-14 | Cree, Inc. | Optical waveguide bodies and luminaires utilizing same |
| US9920901B2 (en) | 2013-03-15 | 2018-03-20 | Cree, Inc. | LED lensing arrangement |
| US10502899B2 (en) * | 2013-03-15 | 2019-12-10 | Ideal Industries Lighting Llc | Outdoor and/or enclosed structure LED luminaire |
| TW201502607A (zh) * | 2013-07-04 | 2015-01-16 | Era Optoelectronics Inc | 使光線被導入導光板進行內全反射的結構 |
| TW201506471A (zh) * | 2013-08-14 | 2015-02-16 | Hon Hai Prec Ind Co Ltd | 背光模組及具有該背光模組的顯示裝置 |
| CN104460108B (zh) * | 2013-09-22 | 2017-03-08 | 纬创资通股份有限公司 | 背光模块 |
| KR102116418B1 (ko) * | 2013-09-30 | 2020-06-01 | 삼성디스플레이 주식회사 | 도광판, 이를 포함하는 백라이트 어셈블리와 표시 장치 및 도광판의 제조 방법 |
| JP5784769B2 (ja) | 2014-02-12 | 2015-09-24 | ミネベア株式会社 | 面状照明装置 |
| JP2017516283A (ja) * | 2014-05-16 | 2017-06-15 | コーニング インコーポレイテッド | 液晶表示装置用のエッジライト型バックライトユニット |
| DE102014220141A1 (de) * | 2014-10-06 | 2016-04-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Lichtverteiler, ein System umfassend einen Lichtverteiler und zumindest eine LED-Leuchte sowie ein Verfahren zur Herstellung eines Lichtverteilers |
| WO2016183148A1 (en) * | 2015-05-13 | 2016-11-17 | Corning Incorporated | Light guides with reduced hot spots and methods for making the same |
| KR102324866B1 (ko) * | 2015-05-26 | 2021-11-12 | 엘지디스플레이 주식회사 | 백라이트유닛과 액정표시장치 및 이의 구동방법 |
| US20170146205A1 (en) * | 2015-11-20 | 2017-05-25 | John LaForte | Cover Plate |
| US10585230B2 (en) * | 2016-03-23 | 2020-03-10 | Microsoft Technology Licensing, Llc | Light-steering layer for electronic display |
| US10288983B2 (en) * | 2016-04-26 | 2019-05-14 | Lumileds Llc | LED flash ring surrounding camera lens |
| TWI760955B (zh) | 2016-04-26 | 2022-04-11 | 荷蘭商露明控股公司 | 環繞攝影機透鏡之發光二極體閃光環及提供照明之方法 |
| US11719882B2 (en) | 2016-05-06 | 2023-08-08 | Ideal Industries Lighting Llc | Waveguide-based light sources with dynamic beam shaping |
| US10416377B2 (en) | 2016-05-06 | 2019-09-17 | Cree, Inc. | Luminaire with controllable light emission |
| DE102016118884A1 (de) * | 2016-10-05 | 2018-04-05 | Temicon Gmbh | Lichtumlenkvorrichtung, Beleuchtungseinrichtung und Verwendung |
| CN107102397A (zh) * | 2017-05-19 | 2017-08-29 | 武汉华星光电技术有限公司 | 侧入式导光板和背光模组 |
| KR101850063B1 (ko) | 2017-07-12 | 2018-04-19 | 유트로닉스주식회사 | 다면 발광 조명용 부재 및 이를 이용한 입체형 조명 장치 |
| FI128882B (en) * | 2017-12-22 | 2021-02-15 | Dispelix Oy | Optical waveguide and diffractive waveguide display |
| JP2022551629A (ja) | 2019-10-11 | 2022-12-12 | スリーエム イノベイティブ プロパティズ カンパニー | 光学層、光学フィルム及び光学システム |
| DE102021202098B4 (de) * | 2021-03-04 | 2023-05-17 | ITP GmbH Gesellschaft für intelligente textile Produkte | Flexibles Flächenlicht sowie textile Flächenkonstruktion oder Kleidungsstück mit einem flexiblen Flächenlicht |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07261029A (ja) * | 1994-03-25 | 1995-10-13 | Nippon Denyo Kk | 導光板およびその加工方法 |
| JPH11203923A (ja) * | 1998-01-09 | 1999-07-30 | Omron Corp | 面光源装置 |
| JP2000113709A (ja) * | 1998-10-05 | 2000-04-21 | Nippon Denyo | 平面照明装置 |
| JP2002538577A (ja) * | 1999-02-23 | 2002-11-12 | ソリッド ステート オプト リミテッド | 発光パネルアセンブリ |
| JP2004200093A (ja) * | 2002-12-20 | 2004-07-15 | Citizen Electronics Co Ltd | 導光板及び導光板の支持ユニット |
| JP2005228718A (ja) * | 2004-02-16 | 2005-08-25 | Citizen Electronics Co Ltd | 導光板 |
| JP2005285586A (ja) * | 2004-03-30 | 2005-10-13 | Nichia Chem Ind Ltd | 面発光装置 |
| JP2005302458A (ja) * | 2004-04-09 | 2005-10-27 | Seiko Instruments Inc | 照明装置及びこれを備える表示装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0553111A (ja) * | 1991-08-23 | 1993-03-05 | Rohm Co Ltd | 薄型エツジライト式液晶表示装置の導光板構造 |
| US6322236B1 (en) | 1999-02-09 | 2001-11-27 | 3M Innovative Properties Company | Optical film with defect-reducing surface and method for making same |
| JP3828402B2 (ja) * | 2001-11-08 | 2006-10-04 | 株式会社日立製作所 | 背面照明装置およびこれを用いた液晶表示装置並びに液晶表示装置の照明方法 |
| US7128459B2 (en) * | 2001-11-12 | 2006-10-31 | Nidec Copal Corporation | Light-guide plate and method for manufacturing the same |
| CN100485487C (zh) * | 2002-04-22 | 2009-05-06 | 三菱丽阳株式会社 | 面光源装置及面光源装置用导光体 |
| JP4436105B2 (ja) | 2002-11-29 | 2010-03-24 | 富士通株式会社 | リフレクタ及び照明装置及び導光板及び表示装置 |
| US20070201234A1 (en) * | 2003-07-21 | 2007-08-30 | Clemens Ottermann | Luminous element |
| CN1570720A (zh) * | 2003-07-23 | 2005-01-26 | 鸿富锦精密工业(深圳)有限公司 | 背光源装置和液晶显示器 |
| JP2005123046A (ja) * | 2003-10-17 | 2005-05-12 | Seiko Instruments Inc | 照明装置及びこれを用いた表示装置 |
| JP4441854B2 (ja) * | 2003-11-25 | 2010-03-31 | オムロン株式会社 | 面光源装置及び当該装置を用いた機器 |
| KR101075232B1 (ko) | 2004-02-06 | 2011-10-20 | 삼성전자주식회사 | 도광판, 백라이트 유닛, 액정디스플레이 및 도광판의제조방법 |
| CN100434988C (zh) * | 2004-02-16 | 2008-11-19 | 西铁城电子股份有限公司 | 导光板 |
| JP2006210140A (ja) * | 2005-01-28 | 2006-08-10 | Radiant Opt-Electronics Corp | 光を均一に拡散する導光板 |
| US7350442B2 (en) | 2005-11-15 | 2008-04-01 | 3M Innovative Properties Company | Cutting tool having variable movement in a z-direction laterally along a work piece for making microstructures |
| US7328638B2 (en) * | 2005-12-27 | 2008-02-12 | 3M Innovative Properties Company | Cutting tool using interrupted cut fast tool servo |
| US20080232135A1 (en) | 2006-05-31 | 2008-09-25 | 3M Innovative Properties Company | Light guide |
| US20070279935A1 (en) | 2006-05-31 | 2007-12-06 | 3M Innovative Properties Company | Flexible light guide |
| WO2010060029A1 (en) * | 2008-11-24 | 2010-05-27 | 3M Innovative Properties Company | Input edge coupler |
| US11571091B2 (en) | 2019-05-28 | 2023-02-07 | TidyBoard LLC | Cutting board with nested containers |
| US11738908B2 (en) | 2021-03-01 | 2023-08-29 | American Greetings Corporation | Pop-up gift bag |
-
2010
- 2010-08-11 WO PCT/US2010/045115 patent/WO2011019785A1/en not_active Ceased
- 2010-08-11 EP EP10743310A patent/EP2464996A1/en not_active Withdrawn
- 2010-08-11 CN CN2010800358948A patent/CN102472865A/zh active Pending
- 2010-08-11 JP JP2012524826A patent/JP2013502043A/ja active Pending
- 2010-08-11 KR KR1020127006231A patent/KR101777885B1/ko not_active Expired - Fee Related
- 2010-08-11 US US13/389,713 patent/US8882323B2/en not_active Expired - Fee Related
-
2014
- 2014-11-10 US US14/537,308 patent/US9684119B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07261029A (ja) * | 1994-03-25 | 1995-10-13 | Nippon Denyo Kk | 導光板およびその加工方法 |
| JPH11203923A (ja) * | 1998-01-09 | 1999-07-30 | Omron Corp | 面光源装置 |
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| JP2005228718A (ja) * | 2004-02-16 | 2005-08-25 | Citizen Electronics Co Ltd | 導光板 |
| JP2005285586A (ja) * | 2004-03-30 | 2005-10-13 | Nichia Chem Ind Ltd | 面発光装置 |
| JP2005302458A (ja) * | 2004-04-09 | 2005-10-27 | Seiko Instruments Inc | 照明装置及びこれを備える表示装置 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2019003888A (ja) * | 2017-06-19 | 2019-01-10 | パナソニックIpマネジメント株式会社 | 誘導灯装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011019785A1 (en) | 2011-02-17 |
| KR20120048676A (ko) | 2012-05-15 |
| US9684119B2 (en) | 2017-06-20 |
| EP2464996A1 (en) | 2012-06-20 |
| US8882323B2 (en) | 2014-11-11 |
| US20150061167A1 (en) | 2015-03-05 |
| KR101777885B1 (ko) | 2017-09-12 |
| US20120140518A1 (en) | 2012-06-07 |
| CN102472865A (zh) | 2012-05-23 |
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