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. 17, 2015
Filed:
Jul. 15, 2005
Applicants:
Tim Fiedler, München, DE;
Frank Jermann, München, DE;
Jörg Strauβ, Regensburg, DE;
Inventors:
Assignees:
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
OSRAM Gesellschaft mit beschrankter Haftung, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/00 (2006.01); H01L 33/50 (2010.01); C09K 11/77 (2006.01); H05B 33/14 (2006.01);
U.S. Cl.
CPC ...
H01L 33/502 (2013.01); C09K 11/7734 (2013.01); H05B 33/14 (2013.01);
Abstract
LEDs having a low color temperature up to 5000 K, comprising a blue-emitting LED and, connected upstream thereof, two phosphors having a first phosphor from the class of the chliorosilicates and a second phosphor from the class of the nitridosilicates having the formula (Ca,Sr)SiN:Eu.