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:
Jan. 03, 1978
Filed:
Oct. 27, 1976
Applicant:
Inventor:
Maurice Levis, New York, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ; G02B / ;
U.S. Cl.
CPC ...
362341 ; 350293 ; 350320 ; 353 98 ; 362346 ; 362350 ;
Abstract
A projection system, such as a slide film or motion picture projection system, includes a light source, a reflector, a film gate or aperture, and a screen. The reflector is formed from a deep-dish ellipse reflector by cutting the ellipse into at least three reflector sectors and then outwardly radially deforming the outer edges, the deformation occurring within a certain critical range. The deformed outer edges are then clamped by circular clamping means.