Patent · US Active

Method for operating a gas discharge lamp

US8456099B2 · kind B2 · utility

0Cited by

8References

11Claims

0Family size

Assignee

OSRAM Gesellschaft mit beschraenkter Haftung · DE

Inventors

Martin Brückel · Garching bei München, DE
Simon Lankes · Falkensee, DE
Andre Nauen · Regensburg, DE
Bernhard Reiter · Munich, DE

Key dates

Filing date	Oct 12, 2006
Grant date	Jun 4, 2013
Priority date	—
Expiry date	Jul 18, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH05B41/2928
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.