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. 24, 1984
Filed:
Dec. 22, 1982
Applicant:
Inventors:
Martinus J van Heel, Roosendaal, NL;
Petrus J Willemsen, Roosendaal, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
313113 ; 313608 ; 313488 ;
Abstract
The invention relates to a low-pressure mercury vapor discharge lamp having a tubular discharge vessel which is sealed in a vacuum-tight manner, a filamentary body, consisting for example of glass wool, which is thinly distributed over the volume of the discharge vessel being provided near the electrodes to increase the radiance in those portions of the discharge vessel.