The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2012
Filed:
Apr. 26, 2007
Volker Dirk Hildenbrand, Eindhoven, NL;
Virginie Mercier, Eindhoven, NL;
Rene Jan Hendriks, Eindhoven, NL;
Volker Dirk Hildenbrand, Eindhoven, NL;
Virginie Mercier, Eindhoven, NL;
Rene Jan Hendriks, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A light-emitting device is provided, comprising at least one light-emitting diode () for emitting light of a first color and a luminescent material () arranged on said at least one light-emitting diode to receive at least part of the light emitted by said light-emitting diode. The light-emitting device further comprises a filter () arranged to receive light emitted by said light-emitting diode () and transmitted through said luminescent material () and to absorb light of said first color. The filter comprises a pigment compound distributed in a matrix of silicon and oxygen atoms, in which matrix at least a portion of said silicon atoms are directly bonded to hydrocarbon groups.