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:
Dec. 18, 2012
Filed:
May. 28, 2009
Patrick Mueller, Karlsfeld, DE;
Klaus Stockwald, Germering, DE;
Herbert Weiss, Diedorf, DE;
OSRAM GmbH, Munich, DE;
Abstract
A high-pressure discharge lamp may include an elongate ceramic discharge vessel, at the ends of which an electrode system with an electrode tip pointing towards the discharge is mounted in a seal, the seal being tubular, the discharge vessel having an aspect ratio of at least 1.5, the discharge vessel having a metal halide fill and a wall load of more than 25 W/cm, wherein the lamp is configured for operation with longitudinal acoustic modulation, the specific rated power of the entire outer surface area of the discharge vessel lying between 17 and 22 W/cm, while at the same time the wall load in a subregion of the surface area, which extends between the tips of the electrodes, lies in the range of between 28 and 40 W/cm.