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:
Feb. 04, 2014
Filed:
Dec. 19, 2011
Yasushi Tsuchiya, Fujimi-machi, JP;
Yasushi Tsuchiya, Fujimi-machi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A thermal detector includes a substrate; a support member supported on the substrate interposed by a cavity; a heat-detecting element formed on the support member and having a pyroelectric material layer disposed between a lower electrode and an upper electrode; a light-absorbing layer formed on the heat-detecting element; and a thermal transfer member including a connecting portion connected to the heat-detecting element and a thermal collecting portion disposed inside the light-absorbing layer and having a surface area larger than that of the connecting portion in plan view, the thermal collecting portion being optically transmissive at least with respect to light of a prescribed wavelength. The lower electrode has an extending portion extending around the pyroelectric material layer in plan view, and the extending portion has light-reflecting properties by which at least a part of the light transmitted through the thermal collecting portion of the thermal transfer member is reflected.