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:
Oct. 11, 1994
Filed:
Aug. 14, 1992
Applicant:
Inventors:
Jean Canteloup, Monthlery, FR;
Jacky Mathias, Jargeau, FR;
Assignee:
Sofie, Arpajon, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356357 ; 356345 ;
Abstract
Assembly for observation and laser interferometric measurements of articles contained in an enclosure includes a video camera and a laser emitter unit. The laser emitter unit has two laser diodes whose beams follow the optical path of the video camera. An illumination system also follows the optical path of the video camera. The entire assembly is incorporated into a single box. The assembly is utilized for the observation and measurement of thin-film structures, in particular integrated-circuit boards.