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:
Jan. 31, 2012
Filed:
Jul. 09, 2008
Norbert Braun, Aachen, DE;
Georg Greuel, Roetgen, DE;
Norbert Braun, Aachen, DE;
Georg Greuel, Roetgen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
It is provided a dielectric barrier discharge lamp () for providing ultraviolet light, comprising an outer tube () filled with a discharge gas for providing ultraviolet light, an inner tube () arranged at least partially inside the outer tube (), an outer electrode () electrically connected to the outer tube () and an inner electrode () electrically connected to the inner tube (), wherein the inner electrode () comprises a conductor () and a plurality of an conductive granulated material () for providing an electrical contact between the conductor () and the inner tube (). Due to the conductive granulated material () an electrical contact between the conductor () and the inner tube () is safeguarded and different thermal expansions of the inner electrode () and the inner tube () are compensated at the same time without applying mechanical stress to the inner tube (). This leads to a dielectric barrier discharge lamp (), which comprises an increased life time without the need for external cooling.