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. 20, 2007
Filed:
Sep. 22, 2004
Applicants:
Sylvain Mayer, München, DE;
Ulrich Müller, München, DE;
Martin Zachau, Geltendorf, DE;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aluminum oxide particle mixture for reflection layers in discharge lamps, and to discharge lamps of this type. The mixture has a first coarse-grained component and a second fine-grained component, with a primary grain size of preferably d(1) between 0.3 μm and 0.5 μm and d(2) of at most 0.05 μm, respectively (with an agglomerated size of the fine particles of less than 0.15 μm).