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. 19, 1989
Filed:
Jun. 19, 1988
Applicant:
Inventors:
Jerold B Lisson, Henrietta, NY (US);
Richard A Stark, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356363 ;
Abstract
An assembly and method for monitoring the alignment of a workpiece with respect to a reference. The assembly and method employ an element which preferably comprises a capability for optical phase conjugation. Advantages which can result from the use of the element include enhanced sensitivity to alignment variations for both large and very small angle deviations from the reference.