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:
Nov. 06, 2012
Filed:
Dec. 08, 2008
Harko Jan Taekema, Drachten, NL;
Jacob Dijkstra, Drachten, NL;
Pawel Leshem, Biedermannsdorf, AT;
Johannes Albert Frankena, Drachten, NL;
Harko Jan Taekema, Drachten, NL;
Jacob Dijkstra, Drachten, NL;
Pawel Leshem, Biedermannsdorf, AT;
Johannes Albert Frankena, Drachten, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A compact gas discharge lamp () comprising four (or more) interconnected tube segments () is provided with an external electrode () that extends at least throughout the length of the tube segments and that is in contact with all tube segments. Several embodiments of the external electrode are disclosed. The external electrode is preferably connected to a node (C) midway between the lamp electrodes, to which end a capacitive divider () is arranged in parallel with the lamp.