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:
Sep. 20, 1988
Filed:
Feb. 10, 1987
Applicant:
Inventors:
Hubertus C van den Nieuwenhuizen, Eindhoven, NL;
Gerardus M Luijks, Eindhoven, NL;
Assignee:
U.S. Philips Corp., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313621 ; 313631 ;
Abstract
The high-pressure discharge lamp has oppositely arranged electrodes of wound tungsten wire. The electrodes are the mirror images of one another and are arranged in the mirror image orientations of one another. The electrodes are free from material favoring electron emission. The form and the mutual relation of the electrodes prevent the lamp from flickering during operation in a position in which a straight line through these electrodes is horizontal.