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TW200706935A - Lighting device - Google Patents

Lighting device

Info

Publication number
TW200706935A
TW200706935A TW095118452A TW95118452A TW200706935A TW 200706935 A TW200706935 A TW 200706935A TW 095118452 A TW095118452 A TW 095118452A TW 95118452 A TW95118452 A TW 95118452A TW 200706935 A TW200706935 A TW 200706935A
Authority
TW
Taiwan
Prior art keywords
light
guide
lighting device
guide arrangement
light source
Prior art date
Application number
TW095118452A
Other languages
Chinese (zh)
Inventor
Johan Marra
Boer Dirk Kornelis Gerhardus De
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200706935A publication Critical patent/TW200706935A/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
    • 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
    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The present invention relates to a lighting device comprising a light-guide arrangement in which inputted light from at least one light source is propagated through and at least partly confined within the light-guide arrangement by means of total internal reflection. The light-guide arrangement comprises first (6) and second (7) light-guide plates and an intermediate layer (8) having a refractive index which is lower than the refractive index of said first light-guide plate (6), said first light-guide plate (6) being arranged to receive light from said at least one light source. This light-guide arrangement provides an improved lateral light-intensity averaging effect, such that light is more uniformly emitted from the output surface of the lighting device, even if said at least one light source is point or line-shaped.
TW095118452A 2005-05-27 2006-05-24 Lighting device TW200706935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05104563 2005-05-27

Publications (1)

Publication Number Publication Date
TW200706935A true TW200706935A (en) 2007-02-16

Family

ID=37116183

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095118452A TW200706935A (en) 2005-05-27 2006-05-24 Lighting device

Country Status (6)

Country Link
EP (1) EP1889104A2 (en)
JP (1) JP2008546139A (en)
KR (1) KR20080021059A (en)
CN (1) CN101185015A (en)
TW (1) TW200706935A (en)
WO (1) WO2006126155A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5108418B2 (en) * 2007-08-28 2012-12-26 パナソニック株式会社 Lighting system
GB2448564B (en) 2007-11-26 2009-04-29 Iti Scotland Ltd Light guides
GB0813186D0 (en) * 2008-07-18 2008-08-27 3M Innovative Properties Co Lighting device comprising a light guide and a support
GB2464916B (en) 2008-10-21 2013-07-31 Iti Scotland Ltd Light Guides
AT507530B1 (en) 2008-11-04 2013-05-15 Al Systems Gmbh LIGHTING ELEMENT FOR A LIGHTING DEVICE AND LIGHTING DEVICE
JP2012519931A (en) 2009-03-05 2012-08-30 アイティーアイ スコットランド リミテッド Light guide
EP2404202B1 (en) 2009-03-05 2016-08-10 Design LED Products Limited Light guides
US8735791B2 (en) 2010-07-13 2014-05-27 Svv Technology Innovations, Inc. Light harvesting system employing microstructures for efficient light trapping
KR101275656B1 (en) * 2010-12-17 2013-06-17 돌비 레버러토리즈 라이쎈싱 코오포레이션 Techniques for quantum dots
US9097826B2 (en) 2011-10-08 2015-08-04 Svv Technology Innovations, Inc. Collimating illumination systems employing a waveguide
KR102459467B1 (en) * 2015-07-17 2022-10-27 삼성디스플레이 주식회사 Display device
EP3409238A1 (en) 2017-06-02 2018-12-05 Koninklijke Philips N.V. Teeth illumination device
CN114442374A (en) * 2022-02-18 2022-05-06 深圳市日普科技有限公司 Backlight module with diffraction optical element

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06242441A (en) * 1992-12-22 1994-09-02 Canon Inc Light source device and display device equipped with the same
JP2742880B2 (en) * 1994-08-12 1998-04-22 大日本印刷株式会社 Surface light source, display device using the same, and light diffusion sheet used for them
JPH09265092A (en) * 1996-03-28 1997-10-07 Enplas Corp Side light type surface light source device
JPH10189237A (en) * 1996-12-25 1998-07-21 Casio Comput Co Ltd Surface light emitter and liquid crystal display device using the same
US6424786B1 (en) * 1996-12-02 2002-07-23 Honeywell International Inc. Illumination assembly
KR100604123B1 (en) * 1998-08-05 2006-07-25 미쯔비시 레이온 가부시끼가이샤 Lens sheet and its manufacturing method
JP3457591B2 (en) * 1999-10-08 2003-10-20 インターナショナル・ビジネス・マシーンズ・コーポレーション Liquid crystal display
JP2002075657A (en) * 2000-08-23 2002-03-15 Seiko Epson Corp Organic EL display element and electronic device
JP2002109934A (en) * 2000-10-04 2002-04-12 Matsushita Electric Ind Co Ltd Image display device
JP2002359068A (en) * 2001-05-31 2002-12-13 Seiko Epson Corp EL device, EL display, EL lighting device, liquid crystal device using the same, and electronic equipment
WO2003027568A1 (en) * 2001-09-26 2003-04-03 Stichting Dutch Polymer Institute Micro-structured illumination system for providing polarized light
JP2003131227A (en) * 2001-10-26 2003-05-08 Nitto Denko Corp Liquid crystal display
JP2003332068A (en) * 2002-05-15 2003-11-21 Nitto Denko Corp Electroluminescence element
KR100897745B1 (en) * 2002-06-26 2009-05-15 삼성전자주식회사 Back light assembly and direct type liquid crystal display device having the same
WO2004027467A1 (en) * 2002-09-18 2004-04-01 Koninklijke Philips Electronics N.V. Light generating device comprising light input and light output units
JP4135092B2 (en) * 2003-09-29 2008-08-20 ソニー株式会社 Backlight and diffusion plate manufacturing method, and liquid crystal display device
JP4427718B2 (en) * 2003-10-28 2010-03-10 ソニー株式会社 Light guide manufacturing method

Also Published As

Publication number Publication date
WO2006126155A2 (en) 2006-11-30
KR20080021059A (en) 2008-03-06
WO2006126155A3 (en) 2007-03-01
EP1889104A2 (en) 2008-02-20
CN101185015A (en) 2008-05-21
JP2008546139A (en) 2008-12-18

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