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:
Feb. 13, 2007
Filed:
Oct. 29, 2002
Johan Leopold Victorina Hendrix, Eindhoven, NL;
Hubertus Cornelis Maria Van Den Nieuwenhuizen, Eindhoven, NL;
Petrus Hendrikus Antonis, Eindhoven, NL;
Johan Leopold Victorina Hendrix, Eindhoven, NL;
Hubertus Cornelis Maria Van den Nieuwenhuizen, Eindhoven, NL;
Petrus Hendrikus Antonis, Eindhoven, NL;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
The invention relates to a high-pressure discharge lamp () provided with a discharge vessel () made of quartz glass which encloses a discharge space () having an ionizable filling and an electrode (). The discharge vessel () is provided with a seal () which preferably encloses an Mo foil and forms a feedthrough for an electric conductor () to the electrode (). At the location of the foil, the seal () has a gastight sealed cavity (). According to the invention the cavity () is free of a capacitive coupling. This improves reliable ignition.