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:
Dec. 16, 1980
Filed:
Apr. 19, 1978
Applicant:
Inventors:
Assignee:
Gesellschaft fur Strahlen-und Umweltforschung mbH, Munchen, Neuherberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V / ; F21V / ;
U.S. Cl.
CPC ...
362293 ; 362294 ; 362345 ; 362373 ;
Abstract
For enabling a quasimonochromatic high intensity light beam to be produced by a source having a lamp equipped with a cold light mirror, a heat protection filter in the light beam path and a system for cooling the heat protection filter, the source is further provided with an interference filter and projection optics located in the beam path downstream of the heat protection filter, and the interference filter is disposed in the optics.