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:
May. 06, 1986
Filed:
Feb. 27, 1984
Applicant:
Inventor:
George M Ehemann, Jr, Manheim Township, Lancaster County, PA (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
3561245 ;
Abstract
Method comprises producing a pattern of alternate light and dark areas along a particular path on the back surface of a viewing window, scanning the image of the pattern along the projected path with a photodetector in such manner as to produce an alternating image signal, and then deriving the value of MTF (modulation transfer function) from the image signal. The viewability of images transmitted through the viewing window can be then characterized by a combination of values of MTF and SR (specular reflection).