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. 08, 2012
Filed:
Apr. 23, 2004
Applicants:
Thomas Jüstel, Witten, DE;
Walter Mayr, Alsdorf, DE;
Peter J. Schmidt, Aachen, DE;
Inventors:
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47G 19/22 (2006.01); B32B 15/00 (2006.01); B32B 9/00 (2006.01); C09K 11/08 (2006.01); G01J 1/58 (2006.01); H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
A UVB phosphor of the composition (Laj_,,,Gd,,Y)PO4:Ce, is described, in which x=0 to 0.5, y=0 to 0.5 and z=0.01 to 0.3 and the sum of x, y and z is less than 1. From a phosphor of this kind, a phosphor layer can be produced that, in fluorescent lamps based on low-pressure mercury discharge lamps, produces a spectrum of 5 UV light that is particularly well suited to the cosmetic or medical treatment of the skin.