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:
Feb. 21, 2012
Filed:
Sep. 21, 2007
Swen-uwe Baacke, Neuburg/Donau, DE;
Stephan Berndanner, Petershausen, DE;
Gerhard Löffler, Eichstätt, DE;
Dirk Rosenthal, Gaimersheim, DE;
Swen-Uwe Baacke, Neuburg/Donau, DE;
Stephan Berndanner, Petershausen, DE;
Gerhard Löffler, Eichstätt, DE;
Dirk Rosenthal, Gaimersheim, DE;
Osram AG, München, DE;
Abstract
A direct current discharge lamp with an anode () and a cathode () that are arranged opposite one another at a predetermined distance (r) inside a discharge vessel () filled with a filling gas, it being possible to apply electric power (P) to the anode () and the cathode () in order to produce a gas discharge. At least the predetermined distance (r) between the anode () and the cathode (), the electric power (P) and a geometry of the anode () are adapted to one another in such a way that a region () of a surface () of the anode () facing the cathode () is free flowing in the heated state of the direct current discharge lamp.