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. 08, 1981
Filed:
Jan. 04, 1980
Applicant:
Inventors:
Assignee:
The University of Arizona Foundation, Tucson, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350321 ; 356346 ; 356353 ; 356360 ;
Abstract
A device for reducing the effects of scattered light in an optical instrument utilizes an interferometer for interfering the scattered light and placing the image of the desired object within a dark fringe of the scattered light interference pattern to increase the contrast between the image of the desired object and the background.