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:
Jun. 04, 2013
Filed:
Oct. 12, 2006
Martin Brückel, Garching, DE;
Simon Lankes, Falkensee, DE;
Andre Nauen, Berlin, DE;
Bernhard Reiter, München, DE;
Martin Brückel, Garching, DE;
Simon Lankes, Falkensee, DE;
Andre Nauen, Berlin, DE;
Bernhard Reiter, München, DE;
OSRAM Gesellschaft mit beschraenkter Haftung, Munich, DE;
Abstract
The invention relates to a method for operating a gas discharge lamp, in which the shape of at least one electrode of the gas discharge lamp is changed, in which by changing the lamp current for a predeterminable duration, at least one current pulse is generated such that structures which have grown on the at least one electrode are at least partially removed, the current pulse being generated for the duration of at least one entire half cycle of the AC voltage or the alternating current if the gas discharge lamp is fed AC voltage or alternating current, and the current pulse being generated with a pulse duration of between approximately 0.1 s and approximately 5 s if the gas discharge lamp is fed DC voltage or direct current.