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. 14, 1984
Filed:
Dec. 10, 1982
Applicant:
Inventors:
Timothy R Pryor, Windsor, CA;
Omer L Hageniers, Windsor, CA;
Walter J Pastorius, Windsor, CA;
Nicholas Liptay-Wagner, Windsor, CA;
Donald A Clarke, Windsor, CA;
Assignee:
Diffracto Ltd., Windsor, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ;
U.S. Cl.
CPC ...
356375 ; 356241 ; 356376 ;
Abstract
Method and apparatus for determining dimensional information concerning an object. A ring of light is directed onto an object surface such that at least a portion of the ring of light is incident upon the object surface. An image is formed of the incident light reflected from the surface. The width or position of the image is determined. The location of the surface is determined from the image width or position, and dimensional information about the object is determined from the surface location.