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WO2009005062A1 - Photoconductive member, light source device employing the photoconductive member, lighting device employing the photoconductive member, and light guiding method employing the photoconductive member - Google Patents

Photoconductive member, light source device employing the photoconductive member, lighting device employing the photoconductive member, and light guiding method employing the photoconductive member Download PDF

Info

Publication number
WO2009005062A1
WO2009005062A1 PCT/JP2008/061912 JP2008061912W WO2009005062A1 WO 2009005062 A1 WO2009005062 A1 WO 2009005062A1 JP 2008061912 W JP2008061912 W JP 2008061912W WO 2009005062 A1 WO2009005062 A1 WO 2009005062A1
Authority
WO
WIPO (PCT)
Prior art keywords
photoconductive member
light
device employing
employing
light source
Prior art date
Application number
PCT/JP2008/061912
Other languages
French (fr)
Japanese (ja)
Inventor
Masaaki Hanano
Shinya Sakaida
Hirokazu Nakagawa
Shoji Yamamoto
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Publication of WO2009005062A1 publication Critical patent/WO2009005062A1/en

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
    • 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
    • G02B6/0018—Redirecting means on the surface of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • 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
    • G02B6/009—Positioning aspects of the light source in the package

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Planar Illumination Modules (AREA)

Abstract

A photoconductive member (1) has a curved surface portion (12a) for totally reflecting the light from a light source (2) guided through an incident portion (11) and further reflecting the totally reflected light by a reflective surface before emission. Consequently, light can be emitted even from the curved surface portion (corresponding to the portion of conventional shape), and the photoconductive member can emit light from the entire surface in the light-emitting direction. A light source device, a lighting device and a light guiding method employing the photoconductive member are also provided.
PCT/JP2008/061912 2007-07-02 2008-07-01 Photoconductive member, light source device employing the photoconductive member, lighting device employing the photoconductive member, and light guiding method employing the photoconductive member WO2009005062A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-174446 2007-07-02
JP2007174446A JP4393537B2 (en) 2007-07-02 2007-07-02 Light guide member, lighting device using the light guide member, and light guide method

Publications (1)

Publication Number Publication Date
WO2009005062A1 true WO2009005062A1 (en) 2009-01-08

Family

ID=40226107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061912 WO2009005062A1 (en) 2007-07-02 2008-07-01 Photoconductive member, light source device employing the photoconductive member, lighting device employing the photoconductive member, and light guiding method employing the photoconductive member

Country Status (2)

Country Link
JP (1) JP4393537B2 (en)
WO (1) WO2009005062A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130126009A (en) * 2012-05-10 2013-11-20 엘지이노텍 주식회사 Lighting device
JP2015179571A (en) * 2014-03-18 2015-10-08 株式会社東芝 Light guide body and lighting system
US9786822B2 (en) 2011-03-06 2017-10-10 Mordehai MARGALIT Light emitting diode package and method of manufacture

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4841513B2 (en) * 2007-07-20 2011-12-21 シャープ株式会社 Lighting device
US20110109840A1 (en) * 2008-07-03 2011-05-12 Sharp Kabushiki Kaisha Light guide unit, surface light source device and liquid crystal display device
JP2010170373A (en) * 2009-01-23 2010-08-05 Sumitomo Electric Ind Ltd Lamp unit, traffic signal lamp unit, and antireflection unit of lamp unit
JP2011187285A (en) * 2010-03-08 2011-09-22 Toshiba Corp Light emitting device
JP5179563B2 (en) * 2010-12-21 2013-04-10 レノボ・シンガポール・プライベート・リミテッド Lighting structure, lighting method, and portable computer
JP5291223B2 (en) * 2012-04-23 2013-09-18 株式会社エス・ケー・ジー Lighting device
DE112013004350T5 (en) * 2012-09-05 2015-05-21 Panasonic Intellectual Property Management Co., Ltd. lighting device
GB201503487D0 (en) * 2015-03-02 2015-04-15 Buster & Punch Ltd Light Bulb
JP2016212966A (en) * 2015-04-30 2016-12-15 株式会社リコー Floodlight, luminaire and lighting control circuit
JP6754242B2 (en) * 2016-07-26 2020-09-09 シーシーエス株式会社 Lighting device
JP2018037415A (en) * 2017-11-07 2018-03-08 株式会社東芝 Lighting device
CA197092S (en) 2020-01-30 2022-01-19 Buster & Punch Ltd Light fitting
USD979104S1 (en) 2020-02-28 2023-02-21 Buster And Punch Limited Light fitting
USD987859S1 (en) 2021-02-25 2023-05-30 Buster And Punch Limited Light bulb
USD987860S1 (en) 2021-02-25 2023-05-30 Buster And Punch Limited Light bulb

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09160032A (en) * 1995-12-12 1997-06-20 Omron Corp Illuminator, liquid crystal display device using the illuminator, portable terminal equipment, on board equipment and optical recognition device
JP2001183991A (en) * 1999-12-27 2001-07-06 Matsushita Electric Ind Co Ltd Backlight structure for liquid crystal
JP2002268572A (en) * 2001-03-06 2002-09-20 Citizen Electronics Co Ltd Illuminator for display
JP2002298629A (en) * 2001-03-30 2002-10-11 Nichia Chem Ind Ltd Light emitting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09160032A (en) * 1995-12-12 1997-06-20 Omron Corp Illuminator, liquid crystal display device using the illuminator, portable terminal equipment, on board equipment and optical recognition device
JP2001183991A (en) * 1999-12-27 2001-07-06 Matsushita Electric Ind Co Ltd Backlight structure for liquid crystal
JP2002268572A (en) * 2001-03-06 2002-09-20 Citizen Electronics Co Ltd Illuminator for display
JP2002298629A (en) * 2001-03-30 2002-10-11 Nichia Chem Ind Ltd Light emitting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9786822B2 (en) 2011-03-06 2017-10-10 Mordehai MARGALIT Light emitting diode package and method of manufacture
KR20130126009A (en) * 2012-05-10 2013-11-20 엘지이노텍 주식회사 Lighting device
CN104285094A (en) * 2012-05-10 2015-01-14 Lg伊诺特有限公司 Lighting device
JP2015520920A (en) * 2012-05-10 2015-07-23 エルジー イノテック カンパニー リミテッド Lighting device
US10001596B2 (en) 2012-05-10 2018-06-19 Lg Innotek Co., Ltd. Lighting device
KR101981717B1 (en) * 2012-05-10 2019-05-24 엘지이노텍 주식회사 Lighting device
JP2015179571A (en) * 2014-03-18 2015-10-08 株式会社東芝 Light guide body and lighting system

Also Published As

Publication number Publication date
JP4393537B2 (en) 2010-01-06
JP2009016087A (en) 2009-01-22

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