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. 24, 1999
Filed:
Nov. 09, 1998
Applicant:
Inventors:
Sandra Freedman Feldman, Niskayuna, NY (US);
Harsha Mysore Hatti, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
3562372 ; 356378 ; 356446 ; 356 73 ;
Abstract
A sample having a coined line is analyzed by traversing a light spot across the sample, and then analyzing both specular and diffuse light reflected from the sample to spatially resolve the coined line. An analyzer includes a holder for supporting the sample which is illuminated by projecting the light spot onto the sample. Light collectors receive the specular and diffuse light from the sample at the spot. The received light is analyzed to detect changes therein indicative of the coined line.