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:
Aug. 15, 1978
Filed:
Nov. 14, 1977
Applicant:
Inventor:
Richard Constantine Babish, Wilton, CT (US);
Assignee:
The Perkin-Elmer Corporation, Norwalk, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350199 ;
Abstract
In an optical system having a mirror system for reflecting light from a field of interest to form a desired image on sensitive material disposed in a focal plane, the improvement characterized by the provision of a centrally located obscuration disposed adjacent the front of a mirror for intercepting light reflected from the sensitive material toward the mirror to prevent reflection from the mirror of said light reflected from the sensitive material from reilluminating the sensitive material, to thereby improve the contrast the desired image.