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:
Nov. 10, 2015
Filed:
Mar. 21, 2014
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 5/02 (2006.01); G01J 5/10 (2006.01); G01J 5/22 (2006.01); G01J 5/34 (2006.01); G01K 7/00 (2006.01);
U.S. Cl.
CPC ...
G01J 5/10 (2013.01); G01J 5/22 (2013.01); G01J 5/34 (2013.01); G01K 7/00 (2013.01);
Abstract
An infrared sensor includes a heat sensing element in which a first electrode, a dielectric film, and a second electrode are sequentially laminated; and an electric charge detection device. The dielectric film represents antiferroelectricity and has a spontaneous polarization in a predetermined measurement environment. The electric charge detection device calculates an amount of relaxation current flowing by a change of the spontaneous polarization, and senses heat of the heat sensing element based on temperature dependence of the amount of relaxation current.