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:
Jun. 06, 1978
Filed:
Apr. 15, 1976
Applicant:
Inventor:
Leonard M Weinstein, Newport News, VA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
96 2 / ; 96 44 ; 350314 ;
Abstract
A method and apparatus for improving the quality of photographic images by projection through a linear radial transmission filter. The invention yields small detail blending or contrast enhancement of small details with a minimum loss of sharpness. A simple enlarger and a linear radial transmission filter are used to process a wide variety of images and are capable of simple adjustment to vary the resulting degree of blending or enhancement.