WO2008035256A3 - Illumination system, luminaire and display device - Google Patents

Illumination system, luminaire and display device Download PDF

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Publication number
WO2008035256A3
WO2008035256A3 PCT/IB2007/053699 IB2007053699W WO2008035256A3 WO 2008035256 A3 WO2008035256 A3 WO 2008035256A3 IB 2007053699 W IB2007053699 W IB 2007053699W WO 2008035256 A3 WO2008035256 A3 WO 2008035256A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
rear wall
emitting window
transmitting panel
illumination system
Prior art date
Application number
PCT/IB2007/053699
Other languages
French (fr)
Other versions
WO2008035256A2 (en
Inventor
Willem L Ijzerman
Hugo J Cornelissen
Original Assignee
Koninkl Philips Electronics Nv
Willem L Ijzerman
Hugo J Cornelissen
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, Willem L Ijzerman, Hugo J Cornelissen filed Critical Koninkl Philips Electronics Nv
Priority to CN2007800347960A priority Critical patent/CN101517442B/en
Priority to BRPI0718453-0A priority patent/BRPI0718453A2/en
Priority to EP07826371.2A priority patent/EP2067065B1/en
Priority to JP2009527951A priority patent/JP5384347B2/en
Priority to US12/377,667 priority patent/US7959343B2/en
Publication of WO2008035256A2 publication Critical patent/WO2008035256A2/en
Publication of WO2008035256A3 publication Critical patent/WO2008035256A3/en
Priority to US13/152,345 priority patent/US8246235B2/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
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • 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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces

Abstract

The invention relates to an illumination system (4) comprising at least one light source (10) for emitting light of a predominant wavelength (W), and a light-transmitting panel (14) which comprises a light-emitting window (16), a rear wall (18) situated opposite said light-emitting window, and edge walls (20) extending between the light-emitting window and the rear wall. Light from the LED is coupled into the light-transmitting panel and is transported substantially via total internal reflection. The rear wall is provided with a two-dimensional array of recesses (22, 24). A sub-set of recesses (22) is distributed substantially regularly on the rear wall. Each recess (22A, 22B, 22C) from the sub-set (22) comprises scattering material (26). When light from the light-transmitting panel reaches the scattering material of the recess, part of the light (W') is coupled out of the light-transmitting panel via scattering. The regular distribution of the scattering material on the rear wall improves the uniformity of the light emitted via the light-emitting window. In an embodiment of the illumination system, the scattering material comprises a luminescent material (28), which absorbs light of the predominant wavelength (UV) and emits light of a further predominant wavelength (R, G, B).
PCT/IB2007/053699 2006-09-19 2007-09-13 Illumination system, luminaire and display device WO2008035256A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN2007800347960A CN101517442B (en) 2006-09-19 2007-09-13 Illumination system, luminaire and display device
BRPI0718453-0A BRPI0718453A2 (en) 2006-09-19 2007-09-13 LIGHTING SYSTEM, LUMINARY AND DISPLAY DEVICE
EP07826371.2A EP2067065B1 (en) 2006-09-19 2007-09-13 Illumination system, luminaire and display device
JP2009527951A JP5384347B2 (en) 2006-09-19 2007-09-13 Lighting system, lighting fixture and display device
US12/377,667 US7959343B2 (en) 2006-09-19 2007-09-13 Illumination system for luminaires and display devices
US13/152,345 US8246235B2 (en) 2006-09-19 2011-06-03 Illumination system for luminaires and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06120897.1 2006-09-19
EP06120897 2006-09-19

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/377,667 A-371-Of-International US7959343B2 (en) 2006-09-19 2007-09-13 Illumination system for luminaires and display devices
US13/152,345 Continuation US8246235B2 (en) 2006-09-19 2011-06-03 Illumination system for luminaires and display device

Publications (2)

Publication Number Publication Date
WO2008035256A2 WO2008035256A2 (en) 2008-03-27
WO2008035256A3 true WO2008035256A3 (en) 2008-05-29

Family

ID=39047635

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/053699 WO2008035256A2 (en) 2006-09-19 2007-09-13 Illumination system, luminaire and display device

Country Status (6)

Country Link
US (2) US7959343B2 (en)
EP (1) EP2067065B1 (en)
JP (1) JP5384347B2 (en)
CN (1) CN101517442B (en)
BR (1) BRPI0718453A2 (en)
WO (1) WO2008035256A2 (en)

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JP4900439B2 (en) * 2008-10-01 2012-03-21 三菱電機株式会社 Planar light source device and display device using the same
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GB2478987A (en) * 2010-03-26 2011-09-28 Iti Scotland Ltd Encapsulation of an LED array forming a light concentrator for use with edge-lit light-guided back lights
KR101692509B1 (en) * 2010-11-02 2017-01-03 엘지이노텍 주식회사 Display Apparatus
KR101460253B1 (en) * 2012-07-09 2014-11-10 김덕수 Reflective lighting board
EP3326485A1 (en) 2012-08-20 2018-05-30 Forever Mount, LLC A brazed joint for attachment of gemstones to a metallic mount
US8940218B1 (en) 2012-08-20 2015-01-27 Automated Assembly Corporation De-focused laser etching of a light diffuser
WO2014120945A1 (en) 2013-01-30 2014-08-07 Cree, Inc. Optical waveguide and lamp including same
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CN204300980U (en) * 2015-01-04 2015-04-29 京东方科技集团股份有限公司 Catoptric arrangement, backlight module and display unit
KR20160096775A (en) * 2015-02-05 2016-08-17 삼성디스플레이 주식회사 Backlight unit and display apparatus having the same
US10757795B2 (en) * 2015-10-06 2020-08-25 Koninklijke Philips N.V. Device for determining spatially dependent x-ray flux degradation and photon spectral change
US10317614B1 (en) 2017-03-14 2019-06-11 Automatad Assembly Corporation SSL lighting apparatus
KR20190086300A (en) 2018-01-12 2019-07-22 엘지이노텍 주식회사 Lighting module and lighting apparatus
US10655823B1 (en) 2019-02-04 2020-05-19 Automated Assembly Corporation SSL lighting apparatus
CN110529827A (en) * 2019-09-20 2019-12-03 珠海格力电器股份有限公司 A kind of lamp plate and its application
US20230080967A1 (en) * 2020-03-10 2023-03-16 Panasonic Intellectual Property Management Co., Ltd. Light-emitting device, lighting system, and optical communication system
US10995931B1 (en) 2020-08-06 2021-05-04 Automated Assembly Corporation SSL lighting apparatus

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Also Published As

Publication number Publication date
JP5384347B2 (en) 2014-01-08
CN101517442A (en) 2009-08-26
US20110228532A1 (en) 2011-09-22
EP2067065A2 (en) 2009-06-10
JP2010503961A (en) 2010-02-04
WO2008035256A2 (en) 2008-03-27
EP2067065B1 (en) 2017-05-31
US20100172153A1 (en) 2010-07-08
BRPI0718453A2 (en) 2013-11-26
US7959343B2 (en) 2011-06-14
CN101517442B (en) 2013-12-11
US8246235B2 (en) 2012-08-21

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