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:
May. 20, 2003
Filed:
May. 18, 2000
Abstract
A discharge lamp, suitable for operating by means of a dielectrically impeded discharge, and having metal electrodes arranged on the wall of the discharge vessel has at least one dielectric impeding layer which covers at least a portion of the electrodes. According to the invention, the electrodes are additionally covered directly with a barrier layer, in particular made from sintered glass ceramic, that is to say the barrier layer is, if appropriate, respectively arranged between the electrode and the dielectric impeding layer. The result of this is to prevent metal ions from diffusing out of the electrodes into the dielectric impeding layer and undesirably influencing the properties thereof. Moreover, it is possible in this way to prevent the electrode tracks from evaporating or being sputtered away during operation of the lamp.