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. 19, 1977
Filed:
Oct. 10, 1975
Applicant:
Inventor:
Gene F Frazier, Washington, DC (US);
Assignee:
Versar, Inc., Springfield, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
96 2 / ; 96 2 / ; 96 452 ; 250316 ; 250330 ;
Abstract
A process for photographing infra red events onto silver halide film including the steps of focusing the infra red radiation directly onto the film to alter the sensitivity of the film to visible light, then flashing the film with a uniform field of visible light at the moment when the sensitivity-altering effect of the infra red is optimum, thereby producing a latent image whose density when developed will vary with the interrelationship between the integrated exposure of the film to infra red and to visible radiation at various discrete areas of the film.