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:
May. 10, 2016
Filed:
Jun. 25, 2012
Applicants:
Georg Greuel, Roetgen, DE;
Thomas Juestel, Witten, DE;
Jagoda Magdalena Kuc, Steinfurt, DE;
Inventors:
Assignee:
Koninklijke Philips N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); H01J 61/00 (2006.01); C09K 11/02 (2006.01); H01J 61/44 (2006.01);
U.S. Cl.
CPC ...
C09K 11/025 (2013.01); C09K 11/7701 (2013.01); C09K 11/772 (2013.01); C09K 11/7706 (2013.01); C09K 11/778 (2013.01); C09K 11/7709 (2013.01); C09K 11/7713 (2013.01); C09K 11/7721 (2013.01); C09K 11/7738 (2013.01); C09K 11/7741 (2013.01); C09K 11/7774 (2013.01); C09K 11/7777 (2013.01); H01J 61/44 (2013.01);
Abstract
The invention provides a a luminescent material comprising particles of UV-luminescent material having a coating, wherein the coating (a 'multi-layer coating') comprises a first coating layer and a second coating layer, wherein the first coating layer is between the luminescent material and the second coating layer, and wherein in a specific embodiment the second coating layer comprises an alkaline earth oxide, especially MgO. Further, the invention provides a lighting unit comprising such luminescent material.