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:
Oct. 18, 2011
Filed:
Dec. 09, 2010
Regina Mueller-mach, San Jose, CA (US);
Gerd Mueller, San Jose, CA (US);
Jorge Meyer, Aachen, DE;
Peter J. Schmidt, Aachen, DE;
Walter Mayr, Alsdorf, DE;
Hans-dieter Bausen, Aachen, DE;
Regina Mueller-Mach, San Jose, CA (US);
Gerd Mueller, San Jose, CA (US);
Jorge Meyer, Aachen, DE;
Peter J. Schmidt, Aachen, DE;
Walter Mayr, Alsdorf, DE;
Hans-Dieter Bausen, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Philips Lumileds Lighting Company, LLC, San Jose, CA (US);
Abstract
The invention concerns an illumination system for generation of colored, especially amber or red light, comprising a radiation source and a fluorescent material comprising at least one phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of wavelength different from that of the absorbed light; wherein said at least one phosphor is a amber to red emitting a rare earth metal-activated oxonitridoalumosilicate of general formula (CaSrBaMg)(AlB)SiNO:Re, wherein 0≦x≦1, 0≦y≦1, 0≦z≦1, 0≦a≦1, 0<b≦1 and 0.002≦n≦0.2 and RE is selected from europium(II) and cerium(III).