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:
Jul. 17, 2018
Filed:
Jan. 31, 2008
Peter J. Schmidt, Aachen, DE;
Lucas Johannes Anna Maria Beckers, Veldhoven, NL;
Joerg Meyer, Aachen, DE;
Baby-seriyati Schreinemacher, Eynatten, BE;
Herbert Schreinemacher, Baesweiler, DE;
Peter J. Schmidt, Aachen, DE;
Lucas Johannes Anna Maria Beckers, Veldhoven, NL;
Joerg Meyer, Aachen, DE;
Baby-Seriyati Schreinemacher, Eynatten, BE;
Herbert Schreinemacher, Baesweiler, DE;
Lumileds LLC, San Jose, CA (US);
Abstract
An illumination system comprising a radiation source and a monolithic ceramic luminescence converter comprising a composite material of at least one luminescent compound, and at least one non-luminescent compound, wherein the material of the non-luminescent compound comprises silicon and nitrogen, is advantageously used, when the luminescent compound comprises an rare-earth metal-activated host compound also comprising silicon and nitrogen. Shared chemical characteristics of the luminescent compound and the non-luminescent material improve phase assemblage, thermal and optical behavior. The invention relates also to a composite monolithic ceramic luminescence converter.