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. 28, 1992
Filed:
Apr. 17, 1989
Applicant:
Inventors:
Hanns E Fischer, Stolberg, DE;
Horst Horster, Roetgen, DE;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313571 ; 313639 ;
Abstract
A high-pressure mercury vapor discharge lamp whose envelope two tungsten electrodes disposed therein of tungsten and a filling containing a rare gas, a quantity of mercury larger than 0.2 mg/mm.sup.3 at a mercury a pour pressure of more than 200 bar and at least one of the halogens chlorine, bromine or iodine in a quantity between 10.sup.-6 and 10.sup.-4 .mu.mol/mm.sup.3. The wall load in operation is higher than 1 W/mm.sup.2.