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:
Sep. 03, 2002
Filed:
Mar. 04, 1999
Hartmut Seiler, Baden-Baden, DE;
Thomas Wizemann, Ludwigsburg, DE;
Ingo Gorille, Oberriexingen, DE;
Wolfgang Pfaff, Remseck-Aldingen, DE;
Wolfgang Schuetze, Vaihingen/Enz, DE;
Bernd Mueller, Reutlingen, DE;
Robert Kern, Sasbachwalden, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A gaseous-discharge lamp, in particular for motor-vehicle headlamps, includes a burner vessel made of glass or the like that contains a gas. Into this burner vessel extend two main electrodes via two gas-tight electrode bushings. Between the end regions of the main electrodes arranged in the burner vessel, an arc gap is formed, along which an electric arc develops during operation. To achieve a smallest possible ignition voltage, an arrangement is provided for producing a creepage spark gap along the inner vessel wall and/or a spark gap that is shorter than the arc gap, serving as an ignition gap that is spatially separated from the arc gap.