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:
Sep. 09, 2014
Filed:
Sep. 27, 2010
George C. Wei, Weston, MA (US);
Steven Mackel, Pepperell, MA (US);
Madis Raukas, Charlstown, MA (US);
Frank Jermann, Koenigsbrunn, DE;
Tim Fiedler, Munich, DE;
George C. Wei, Weston, MA (US);
Steven Mackel, Pepperell, MA (US);
Madis Raukas, Charlstown, MA (US);
Frank Jermann, Koenigsbrunn, DE;
Tim Fiedler, Munich, DE;
OSRAM Sylvania Inc., Danvers, MA (US);
Abstract
There is herein described an LED light source comprising an LED and a ceramic wavelength converter positioned to receive at least a portion of the light emitted by said LED, said ceramic wavelength converter converting at least a portion of the light emitted by said LED into light of a different wavelength, said ceramic wavelength converter comprising a chlorosilicate phosphor and having a density at least about 90% of theoretical density. The chlorosilicate phosphor is preferably a green-emitting CaMg(SiO)Cl:Euphosphor.