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:
Apr. 01, 1986
Filed:
Oct. 04, 1985
Applicant:
Inventor:
Hans P Kleinknecht, Bergdietikon, CH;
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356376 ; 250201 ;
Abstract
An optical profilometer for surface contours subject to tilt is optically scanned to measure the surface contours. Surface tilt effects are obviated by slitted apertures in the paths of the reflection beams to pass the beams with large surface tilts (on the order of 30.degree.) without loss of sensitivity, accuracy, or precision.