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. 01, 2013
Filed:
Nov. 27, 2008
Applicants:
Peter J. Schmidt, Aachen, DE;
Walter Mayr, Alsdorf, DE;
Joerg Meyer, Aachen, DE;
Juliane Angelika Kechele, Stadtbergen, DE;
Wolfgang Schnick, Gauting, DE;
Oliver Michael Oeckler, Munich, DE;
Inventors:
Peter J. Schmidt, Aachen, DE;
Walter Mayr, Alsdorf, DE;
Joerg Meyer, Aachen, DE;
Juliane Angelika Kechele, Stadtbergen, DE;
Wolfgang Schnick, Gauting, DE;
Oliver Michael Oeckler, Munich, DE;
Assignee:
Koninklijke Philips N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01J 1/62 (2006.01); H01J 63/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a light emitting device, especially a LED comprising a green emitting material of the composition SrMSiAlON:Eu:Ce. This material has been found to have a narrow emission in the green wavelight range together with a good producibility and stability.