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Numéro de publicationWO2009016585 A3
Type de publicationDemande
Numéro de demandePCT/IB2008/053034
Date de publication9 avr. 2009
Date de dépôt29 juil. 2008
Date de priorité2 août 2007
Autre référence de publicationWO2009016585A2
Numéro de publicationPCT/2008/53034, PCT/IB/2008/053034, PCT/IB/2008/53034, PCT/IB/8/053034, PCT/IB/8/53034, PCT/IB2008/053034, PCT/IB2008/53034, PCT/IB2008053034, PCT/IB200853034, PCT/IB8/053034, PCT/IB8/53034, PCT/IB8053034, PCT/IB853034, WO 2009/016585 A3, WO 2009016585 A3, WO 2009016585A3, WO-A3-2009016585, WO2009/016585A3, WO2009016585 A3, WO2009016585A3
InventeursMartijn H R Lankhorst, Martinus P J Peeters, Lingli Wang
DéposantKoninkl Philips Electronics Nv, Martijn H R Lankhorst, Martinus P J Peeters, Lingli Wang
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes:  Patentscope, Espacenet
Color conversion device
WO 2009016585 A3
Résumé
The present invention relates to a color conversion device (204) for a light output device (102) emitting light within a first wavelength range, comprising a first wavelength converting element (106) adapted to receive light emitted by the light output device (102) and to output light at a second wavelength range, and a second wavelength converting element (108) arranged to receive the light outputted from the first wavelength converting element (108) and to output light at a third wavelength range, wherein one of the first or the second wavelength converting element (106, 108) is arranged to partly cover the other one of the first or the second wavelength converting element (106, 108), thereby allowing for the color conversion device (204) to output light within the second and third wavelength ranges. By only partly cover either the first wavelength converting element (106) with the second wavelength converting element, or only partly cover the second wavelength converting element (108) with the first wavelength converting element (106), it is possible to achieve a higher color rendering index (CRI) as not all of the light emitted by the light output device (102) is filtered by both the first and the second wavelength converting element (106, 108).
Citations de brevets
Brevet cité Date de dépôt Date de publication Déposant Titre
WO2006087660A1 *10 févr. 200624 août 2006Philips Intellectual Property & Standards GmbhIllumination system comprising a green-emitting ceramic luminescence converter
WO2007134582A1 *18 mai 200729 nov. 2007Osram Opto Semiconductors GmbhOptoelectronic semiconductor chip comprising a wavelength conversion substance, and optoelectronic semiconductor component comprising such a semiconductor chip, and method for producing the optoelectronic semiconductor chip
EP1394867A2 *12 juin 20033 mars 2004SAMSUNG ELECTRO-MECHANICS Co. Ltd.Light emitting diode and method for fabricating the same
EP1566848A2 *9 févr. 200524 août 2005LumiLeds Lighting U.S., LLCWavelength converted semiconductor light emitting device
US7045375 *14 janv. 200516 mai 2006Au Optronics CorporationWhite light emitting device and method of making same
US20050269582 *3 juin 20048 déc. 2005Lumileds Lighting, U.S., LlcLuminescent ceramic for a light emitting device
US20070096634 *31 oct. 20053 mai 2007Osram Opto Semiconductors GmbhStructured luminescence conversion layer
Classifications
Classification internationaleH01L33/50
Classification coopérativeH01L33/504, H01L33/508
Classification européenneH01L33/50B2B
Événements juridiques
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