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. 27, 2005
Filed:
Jun. 02, 2003
Applicant:
Zongtao GE, Saitama, JP;
Inventor:
Zongtao Ge, Saitama, JP;
Assignee:
Fujinon Corporation, Saitama, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B009/02 ;
U.S. Cl.
CPC ...
Abstract
A circular region extracting method captures onto a coordinate system a fringe image of a sample having a circular region to be analyzed within an area to be observed, binary-codes the fringe image of the area by a fringe analysis method on the coordinate system, places a plurality of linear gratings in parallel with each other with a predetermined interval on thus binary-coded coordinate system, and uses the linear gratings so as to extract a circular image region representing the region to be analyzed on the coordinate system.