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.:

US 6906462 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 14, 2005

Filed:

May. 28, 2000
Applicant:

Ingo Gorille, Oberriexingen, DE;

Inventor:

Ingo Gorille, Oberriexingen, DE;

Assignee:

Robert Bosch GmbH, Struttgart, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J065/00 ;
U.S. Cl.
CPC ...
Abstract

The gas discharge lamp has a burner, which has a discharge vessel with a void, in which a filling of gas and other substances is disposed. Two electrodes protrude into the void, and between them, in operation of the gas discharge lamp, an electric arc develops. On the outside of the discharge vessel, in the region of the void, two auxiliary electrodes of opposite polarity are disposed facing one another. The auxiliary electrodes are formed by coating the outside of the discharge vessel with electrically conductive material. Prior to and optionally also during the ignition of the gas discharge lamp, high-frequency high voltage is applied to the auxiliary electrodes, which facilitates the ignition of the gas discharge lamp.


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