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. 08, 2011
Filed:
Dec. 22, 2006
Regina B. Mueller-mach, San Jose, CA (US);
Gerd O. Mueller, San Jose, CA (US);
Michael R. Krames, Los Altos, CA (US);
Peter J. Schmidt, Aachen, DE;
Hans-helmut Bechtel, Aachen, DE;
Regina B. Mueller-Mach, San Jose, CA (US);
Gerd O. Mueller, San Jose, CA (US);
Michael R. Krames, Los Altos, CA (US);
Peter J. Schmidt, Aachen, DE;
Hans-Helmut Bechtel, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Philips Lumileds Lighting Company, LLC, San Jose, CA (US);
Abstract
A ceramic body is disposed in a path of light emitted by a light source. The light source may include a semiconductor structure comprising a light emitting region disposed between an n-type region and a p-type region. The ceramic body includes a plurality of first grains configured to absorb light emitted by the light source and emit light of a different wavelength, and a plurality of second grains. For example, the first grains may be grains of luminescent material and the second grains may be grains of a luminescent material host matrix without activating dopant.