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. 08, 2002
Filed:
Sep. 28, 1999
Applicant:
Inventors:
Yung-Chieh Hsieh, San Jose, CA (US);
Lily Zheng, San Jose, CA (US);
Roger Hajjar, San Jose, CA (US);
Sanjai Parthasarathi, San Jose, CA (US);
Assignee:
Terastor Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/186 ; G01V 8/00 ;
U.S. Cl.
CPC ...
G01N 2/186 ; G01V 8/00 ;
Abstract
A near-field optical system having a mechanism to determine a spacing between an optical surface and a reflective surface that are spaced by less one wavelength by using coupled radiation energy that has an evanescently-coupled portion.