WO2008015617A3 - Light- combining and collimating device - Google Patents

Light- combining and collimating device Download PDF

Info

Publication number
WO2008015617A3
WO2008015617A3 PCT/IB2007/052943 IB2007052943W WO2008015617A3 WO 2008015617 A3 WO2008015617 A3 WO 2008015617A3 IB 2007052943 W IB2007052943 W IB 2007052943W WO 2008015617 A3 WO2008015617 A3 WO 2008015617A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
light sources
collimating
collimating element
receiving
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.)
Ceased
Application number
PCT/IB2007/052943
Other languages
French (fr)
Other versions
WO2008015617A2 (en
Inventor
Marcellinus P C M Krijn
Gorkom Ramon P Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to US12/373,902 priority Critical patent/US20090316397A1/en
Priority to JP2009522390A priority patent/JP2009545873A/en
Priority to EP07805226A priority patent/EP2049927A2/en
Publication of WO2008015617A2 publication Critical patent/WO2008015617A2/en
Publication of WO2008015617A3 publication Critical patent/WO2008015617A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
    • G02B19/0023—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors) at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/0977—Reflective elements
    • G02B27/0983—Reflective elements being curved
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/149—Beam splitting or combining systems operating by reflection only using crossed beamsplitting surfaces, e.g. cross-dichroic cubes or X-cubes
    • 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
    • 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
    • G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
    • 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
    • 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
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133621—Illuminating devices providing coloured light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Semiconductor Lasers (AREA)

Abstract

A light-emitting device (100) comprising four light sources (101, 102, 103, 104) in quadrangular arrangement, and a collimating element (110) arranged to collimate and mix light emitted by said light sources is provided. The collimating element has a receiving side (111) for receiving light from said light sources and an opposite output side (112), and comprises two intersecting V-shaped profile surfaces (120, 130), the edges of said V-shaped profile surfaces (125, 135) being arranged towards said receiving face (111). The collimating element is capable of collimating the light from the four light sources and obtain a good color mixing, such that light from each light source is collimated to essentially the same degree.
PCT/IB2007/052943 2006-07-31 2007-07-24 Light- combining and collimating device Ceased WO2008015617A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/373,902 US20090316397A1 (en) 2006-07-31 2007-07-24 Light-emitting device
JP2009522390A JP2009545873A (en) 2006-07-31 2007-07-24 Light emitting device
EP07805226A EP2049927A2 (en) 2006-07-31 2007-07-24 Light-combining and collimating device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06118149 2006-07-31
EP06118149.1 2006-07-31

Publications (2)

Publication Number Publication Date
WO2008015617A2 WO2008015617A2 (en) 2008-02-07
WO2008015617A3 true WO2008015617A3 (en) 2008-04-03

Family

ID=38922733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/052943 Ceased WO2008015617A2 (en) 2006-07-31 2007-07-24 Light- combining and collimating device

Country Status (7)

Country Link
US (1) US20090316397A1 (en)
EP (1) EP2049927A2 (en)
JP (1) JP2009545873A (en)
KR (1) KR20090036148A (en)
CN (1) CN101495894A (en)
TW (1) TW200821625A (en)
WO (1) WO2008015617A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090035607A (en) * 2006-07-31 2009-04-09 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Light emitting device
WO2009150580A1 (en) * 2008-06-13 2009-12-17 Koninklijke Philips Electronics N.V. Light emitting device
WO2010001309A1 (en) * 2008-07-01 2010-01-07 Koninklijke Philips Electronics N.V. Close proximity collimator for led

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040120647A1 (en) * 2002-11-28 2004-06-24 Seiko Epson Corporation Optical element and illuminator and projection display device
US20050047135A1 (en) * 2003-08-01 2005-03-03 Greg Rhoads Apparatus and method of using light sources of differing wavelengths in an unitized beam

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535394A (en) * 1983-12-08 1985-08-13 Dugre Michael A Variable color floodlight
US5097258A (en) * 1989-10-25 1992-03-17 Stanley Electric Co., Ltd. Multicolor display lamp
US5295050A (en) * 1992-11-23 1994-03-15 Eaton Corporation Display system
US5951150A (en) * 1997-09-11 1999-09-14 Eaton Corporation Display system
US7004602B2 (en) * 2003-02-25 2006-02-28 Ryan Waters LED light apparatus and methodology
US7806577B2 (en) * 2005-09-28 2010-10-05 Koninklijke Philips Electronics N.V. High brightness light emitting diode device
US7883238B2 (en) * 2006-06-16 2011-02-08 Koninklijke Philips Electronics N.V. Light collimation and mixing of remote light sources
KR20090035607A (en) * 2006-07-31 2009-04-09 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Light emitting device
WO2008065597A1 (en) * 2006-11-28 2008-06-05 Koninklijke Philips Electronics N.V. Projection display with led-based illumination module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040120647A1 (en) * 2002-11-28 2004-06-24 Seiko Epson Corporation Optical element and illuminator and projection display device
US20050047135A1 (en) * 2003-08-01 2005-03-03 Greg Rhoads Apparatus and method of using light sources of differing wavelengths in an unitized beam

Also Published As

Publication number Publication date
CN101495894A (en) 2009-07-29
KR20090036148A (en) 2009-04-13
EP2049927A2 (en) 2009-04-22
TW200821625A (en) 2008-05-16
WO2008015617A2 (en) 2008-02-07
US20090316397A1 (en) 2009-12-24
JP2009545873A (en) 2009-12-24

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