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:
Apr. 15, 2008
Filed:
Jul. 20, 2004
Herman Johannes Gertrudis Gielen, Roosendaal, NL;
Herman Johannes Gertrudis Gielen, Roosendaal, NL;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
Low-pressure mercury vapor discharge lamp has a discharge vessel () enclosing, in a gastight manner, a discharge space () provided with a filling of mercury and an inert gas in a gastight manner. The discharge vessel comprising electrodes () arranged in the discharge space for maintaining a discharge in the discharge space. According to the invention, the probability of failure of the low-pressure mercury vapor discharge lamp being substantially determined by one of the electrodes. As upon igniting the low-pressure mercury vapor discharge lamp the ignition-related events influence the electrodes, preferably, the ignition-related events substantially are prevented affecting the one electrode.