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:
Sep. 16, 1986
Filed:
Jun. 07, 1983
Applicant:
Inventors:
Calvin W Gillard, Palo Alto, CA (US);
Neal E Buholz, Palo Alto, CA (US);
William M Wells, III, Stanford, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356349 ; 356358 ;
Abstract
The improved Absolute Distance Sensor has achieved presently a resolution of about 0.03 .mu.m (RMS) for measurements over long distances. A two-color, synthetic Michelson interferometer employing a CO.sub.2 source is designed to sequentially switch between four sets of R and P line pairs and thereby provide a basis for forming simultaneous equations which are employed to greatly reduce the half wavelength ambiguity typical of single wavelength interferometers.
Quick Actions:
Gillard, Calvin. (1986). Absolute distance sensor (U.S. Patent No. 4611915). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4611915
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile