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:
Dec. 02, 2014
Filed:
Sep. 12, 2011
Applicants:
Yusuke Sakagami, Shiojiri, JP;
Jun Amako, Matsumoto, JP;
Inventors:
Yusuke Sakagami, Shiojiri, JP;
Jun Amako, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 3/44 (2006.01); G01J 3/10 (2006.01); G01N 21/65 (2006.01); G01J 3/02 (2006.01);
U.S. Cl.
CPC ...
G01J 3/44 (2013.01); G01J 3/10 (2013.01); G01N 21/658 (2013.01); G01J 3/0224 (2013.01);
Abstract
A detection apparatus includes: a first light source group having a plurality of light sources; a switch that switches the plurality of light sources to activate at least one of the light sources, a first optical system that introduces light from the activated light source into an electrical conductor of an optical device; and a detector that detects Raman scattering light from the light scattered or reflected by the electrical conductor. Each of the plurality of light sources of the first light source group is capable of radiating light having different polarization directions.