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:
Jun. 18, 2013
Filed:
Apr. 15, 2008
Joerg Meyer, Aachen, DE;
Hans-helmut Bechtel, Roetgen, DE;
Walter Mayr, Alsdorf, DE;
Peter Schmidt, Aachen, DE;
Baby-seriyati Schreinemacher, Eynatten, BE;
Detlef Uwe Wiechert, Aldsdorf, DE;
Joerg Meyer, Aachen, DE;
Hans-Helmut Bechtel, Roetgen, DE;
Walter Mayr, Alsdorf, DE;
Peter Schmidt, Aachen, DE;
Baby-Seriyati Schreinemacher, Eynatten, BE;
Detlef Uwe Wiechert, Aldsdorf, DE;
Konklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a white emitting light source with an improved luminescent material of the formula (AEN2/3)*b (MN)*c (SiN4/3)*d1 CeO3/2*d2 EuO*x SiO2*y AlO3/2 wherein AE is an alkaline earth metal chosen of the group of Ca, Mg, Sr and Ba or mixtures thereof and M is a trivalent element chosen of the group of Al, B, Ga, Sc with d1>10*d2. In combination with a UV to blue light generating device this material leads to an improved light quality and stability, especially an improved temperature stability for a wide range of applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile