WO2009052992A3 - Light guide device, illumination device with a light guide device of said kind and method for the production of a light guide device of said kind - Google Patents

Light guide device, illumination device with a light guide device of said kind and method for the production of a light guide device of said kind Download PDF

Info

Publication number
WO2009052992A3
WO2009052992A3 PCT/EP2008/008772 EP2008008772W WO2009052992A3 WO 2009052992 A3 WO2009052992 A3 WO 2009052992A3 EP 2008008772 W EP2008008772 W EP 2008008772W WO 2009052992 A3 WO2009052992 A3 WO 2009052992A3
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
guide device
production
main surface
illumination
Prior art date
Application number
PCT/EP2008/008772
Other languages
German (de)
French (fr)
Other versions
WO2009052992A2 (en
Inventor
Georg Diamantidis
Fred Tonhofer
Original Assignee
Noctron Soparfi S.A.
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 Noctron Soparfi S.A. filed Critical Noctron Soparfi S.A.
Priority to CN2008801204757A priority Critical patent/CN101896843A/en
Priority to EP08842992A priority patent/EP2238487A2/en
Publication of WO2009052992A2 publication Critical patent/WO2009052992A2/en
Publication of WO2009052992A3 publication Critical patent/WO2009052992A3/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
    • G02B6/005—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
    • G02B6/0055—Reflecting element, 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
    • G02B6/0013—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention relates to a light guide device (10; 70, 72, 74, 76, 78, 80) having a light guide element (12), which is delimited by a first main surface (14) and a second main surface (22) that is spaced parallel to the first main surface, and having a reflection device (24), which is arranged on the side of the second main surface (22) of the light guide element (12) and with which light can be reflected in at least the direction of the inside of the light guide element (12). The reflection device (24) comprises material islands (26) made of a preferably transparent reflective material. The invention further relates to an illumination device (42; 100) comprising a light guide device (10; 70, 72, 74, 76, 78, 80) of said kind and to a method for the production of the light guide device (10; 70, 72, 74, 76, 78, 80).
PCT/EP2008/008772 2007-10-18 2008-10-16 Light guide device, illumination device with a light guide device of said kind and method for the production of a light guide device of said kind WO2009052992A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008801204757A CN101896843A (en) 2007-10-18 2008-10-16 Light guide device, illumination device with a light guide device of said kind and method for the production of a light guide device of said kind
EP08842992A EP2238487A2 (en) 2007-10-18 2008-10-16 Light guide device, illumination device with a light guide device of said kind and method for the production of a light guide device of said kind

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710050271 DE102007050271B4 (en) 2007-10-18 2007-10-18 Light guide device and lighting device with such a light guide device
DE102007050271.2 2007-10-18

Publications (2)

Publication Number Publication Date
WO2009052992A2 WO2009052992A2 (en) 2009-04-30
WO2009052992A3 true WO2009052992A3 (en) 2009-10-15

Family

ID=40490048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/008772 WO2009052992A2 (en) 2007-10-18 2008-10-16 Light guide device, illumination device with a light guide device of said kind and method for the production of a light guide device of said kind

Country Status (4)

Country Link
EP (1) EP2238487A2 (en)
CN (1) CN101896843A (en)
DE (1) DE102007050271B4 (en)
WO (1) WO2009052992A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2720403C (en) * 2008-04-02 2016-02-23 Basf Se Process for isolating n2o
CN102265196A (en) * 2008-12-23 2011-11-30 皇家飞利浦电子股份有限公司 Light guide system, and reflector for controlling out-coupling of light
CN105733088A (en) * 2014-05-13 2016-07-06 上海宇明光电材料技术有限公司 Preparation method of modified plastic for LED tube
KR102463204B1 (en) * 2017-12-18 2022-11-03 현대자동차 주식회사 Light guide
AT523067B1 (en) * 2019-12-04 2021-05-15 Hueck Folien Gmbh Light guide plate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07176794A (en) * 1993-12-17 1995-07-14 Nichia Chem Ind Ltd Planar light source
WO2001027529A1 (en) * 1999-10-08 2001-04-19 3M Innovative Properties Company Lightguide having a directly secured reflector and method of making the same
FR2868239A1 (en) * 2004-03-26 2005-09-30 Koito Mfg Co Ltd LIGHT SOURCE MODULE AND VEHICLE HEADLIGHT USING THE SAME
US20070194693A1 (en) * 2004-03-26 2007-08-23 Hajime Saito Light-Emitting Device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6229003A (en) * 1985-07-30 1987-02-07 株式会社トキメック Back reflection type light diffuser
EP0500089B1 (en) * 1991-02-21 1996-08-14 Tosoh Corporation Back lighting device
US5796450A (en) * 1994-12-16 1998-08-18 Canon Kabushiki Kaisha Illumination device and liquid crystal display apparatus including same
DE10065728B4 (en) * 2000-12-29 2009-04-23 Robert Bosch Gmbh Backlight device and liquid crystal display and their use in a motor vehicle
DE102007025573A1 (en) * 2007-05-31 2008-12-04 Noctron Holding S.A. Liquid crystal display panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07176794A (en) * 1993-12-17 1995-07-14 Nichia Chem Ind Ltd Planar light source
WO2001027529A1 (en) * 1999-10-08 2001-04-19 3M Innovative Properties Company Lightguide having a directly secured reflector and method of making the same
FR2868239A1 (en) * 2004-03-26 2005-09-30 Koito Mfg Co Ltd LIGHT SOURCE MODULE AND VEHICLE HEADLIGHT USING THE SAME
US20070194693A1 (en) * 2004-03-26 2007-08-23 Hajime Saito Light-Emitting Device

Also Published As

Publication number Publication date
CN101896843A (en) 2010-11-24
DE102007050271B4 (en) 2012-02-02
DE102007050271A1 (en) 2009-04-30
EP2238487A2 (en) 2010-10-13
WO2009052992A2 (en) 2009-04-30

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