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:
May. 18, 1982
Filed:
Nov. 21, 1980
Applicant:
Inventor:
Jean-Claude Deutsch, Grenoble, FR;
Assignee:
Commissariat a l'Energie Atomique, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362244 ; 362 97 ; 362217 ; 340763 ; 340765 ; 340783 ; 340784 ; 350345 ;
Abstract
Illuminating device for a large screen making it possible to uniformly illuminate said screen by means of a light arriving at a low angle of incidence .theta., wherein it comprises n.p light sources and n.p optical focusing elements in matrix form, as well as means for ensuring that the light beams from each source do not encounter the optical elements associated with the other sources.
Deutsch, Jean-Claude. (1982). Illuminating device for large screen (U.S. Patent No. 4330813). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4330813
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile