WO2008068722A3 - Hollow light guide and illumination device. - Google Patents

Hollow light guide and illumination device. Download PDF

Info

Publication number
WO2008068722A3
WO2008068722A3 PCT/IB2007/054944 IB2007054944W WO2008068722A3 WO 2008068722 A3 WO2008068722 A3 WO 2008068722A3 IB 2007054944 W IB2007054944 W IB 2007054944W WO 2008068722 A3 WO2008068722 A3 WO 2008068722A3
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
illumination device
hollow light
pipe
wall
Prior art date
Application number
PCT/IB2007/054944
Other languages
French (fr)
Other versions
WO2008068722A2 (en
Inventor
Denis Fournier
Fabrice Martins
Original Assignee
Koninkl Philips Electronics Nv
Denis Fournier
Fabrice Martins
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, Denis Fournier, Fabrice Martins filed Critical Koninkl Philips Electronics Nv
Publication of WO2008068722A2 publication Critical patent/WO2008068722A2/en
Publication of WO2008068722A3 publication Critical patent/WO2008068722A3/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
    • G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

A hollow light guide comprises a pipe and an outlet part that tapers outwardly from the end of the pipe to an outlet end. The light guide has a wall, the inner surface of which comprises a light reflecting material. The wall may consist of the assembly of at least two longitudinal sub-elements which display at least one isometrical symmetry between themselves. The hollow light guide may be integrated in an illumination device.
PCT/IB2007/054944 2006-12-08 2007-12-06 Hollow light guide and illumination device. WO2008068722A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06301229 2006-12-08
EP06301229.8 2006-12-08

Publications (2)

Publication Number Publication Date
WO2008068722A2 WO2008068722A2 (en) 2008-06-12
WO2008068722A3 true WO2008068722A3 (en) 2008-08-14

Family

ID=39390631

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/054944 WO2008068722A2 (en) 2006-12-08 2007-12-06 Hollow light guide and illumination device.

Country Status (2)

Country Link
TW (1) TW200839150A (en)
WO (1) WO2008068722A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2161599A1 (en) * 2008-09-04 2010-03-10 Robert Bosch Gmbh Cylindrical light guide and illuminating device
EP2414874A1 (en) * 2009-03-31 2012-02-08 Koninklijke Philips Electronics N.V. Optics device for stage lighting
EP2339382A1 (en) * 2009-12-22 2011-06-29 3M Innovative Properties Company A light guide for a dental light device and a method of making the light guide
FR2980588B1 (en) * 2011-09-27 2014-05-09 Renault Sa INTEGRATED LIGHT GUIDE PART, IN PARTICULAR FOR LIGHTING TWO SEPARATE AREAS OF A MOTOR VEHICLE EQUIPMENT PIECE
EP3625604B1 (en) * 2017-05-16 2021-01-20 Signify Holding B.V. Color mixing in laser-based light source

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61250902A (en) * 1985-04-27 1986-11-08 株式会社ブリヂストン Light irradiator
JPH08200839A (en) * 1995-01-26 1996-08-06 Brother:Kk Device for utilizing light and heat of sun
US5774608A (en) * 1995-09-20 1998-06-30 General Electric Company Optical coupling systems with bend
EP1512999A2 (en) * 2003-08-25 2005-03-09 Olympus Corporation Optical device, illumination apparatus using the device, and projector using the illumination apparatus
DE102004040475A1 (en) * 2003-08-21 2005-04-21 Funai Electric Co Image projector and light channel
EP1584963A2 (en) * 2000-03-22 2005-10-12 Cogent Light Technologies, INC. Coupling of light from a small light source for projection systems using parabolic reflectors
US20050237764A1 (en) * 2004-04-23 2005-10-27 Kanti Jain High-brightness, compact illuminator with integrated optical elements
US20060001845A1 (en) * 2004-06-29 2006-01-05 Anvik Corporation Illumination system optimized for throughput and manufacturability
US20060028834A1 (en) * 2004-08-09 2006-02-09 Miller Jack V Hybrid fiber optic framing projector
US20060044531A1 (en) * 2004-08-26 2006-03-02 Franc Potekev Morphing light guide
US7113684B1 (en) * 2005-06-15 2006-09-26 The Boeing Company Hex tube light homogenizer splitter

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61250902A (en) * 1985-04-27 1986-11-08 株式会社ブリヂストン Light irradiator
JPH08200839A (en) * 1995-01-26 1996-08-06 Brother:Kk Device for utilizing light and heat of sun
US5774608A (en) * 1995-09-20 1998-06-30 General Electric Company Optical coupling systems with bend
EP1584963A2 (en) * 2000-03-22 2005-10-12 Cogent Light Technologies, INC. Coupling of light from a small light source for projection systems using parabolic reflectors
DE102004040475A1 (en) * 2003-08-21 2005-04-21 Funai Electric Co Image projector and light channel
EP1512999A2 (en) * 2003-08-25 2005-03-09 Olympus Corporation Optical device, illumination apparatus using the device, and projector using the illumination apparatus
US20050237764A1 (en) * 2004-04-23 2005-10-27 Kanti Jain High-brightness, compact illuminator with integrated optical elements
US20060001845A1 (en) * 2004-06-29 2006-01-05 Anvik Corporation Illumination system optimized for throughput and manufacturability
US20060028834A1 (en) * 2004-08-09 2006-02-09 Miller Jack V Hybrid fiber optic framing projector
US20060044531A1 (en) * 2004-08-26 2006-03-02 Franc Potekev Morphing light guide
US7113684B1 (en) * 2005-06-15 2006-09-26 The Boeing Company Hex tube light homogenizer splitter

Also Published As

Publication number Publication date
TW200839150A (en) 2008-10-01
WO2008068722A2 (en) 2008-06-12

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