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Patent Searching and Data


Title:
OPTICAL SENSOR
Document Type and Number:
WIPO Patent Application WO/2021/006034
Kind Code:
A1
Abstract:
This optical sensor comprises a support layer, a thermoelectric conversion material unit that is provided on one main surface of the support layer and includes a plurality of band-like first material layers that convert thermal energy into electrical energy and a plurality of band-like second material layers that are conductive, an annular heat sink that is disposed on the other main surface of the support layer along the outer edge of the support layer, and a light absorbing film that converts received light into heat energy and is disposed in an area surrounded by the inner edge of the heat sink as viewed from the thickness direction of the support layer so as to form a temperature difference along the longitudinal direction of the first material layers. The plurality of first material layers and second material layers are arranged alternatingly such that, except for a first area connected to a first electrode and a third area connected to a second electrode, first and third areas are connected to each other and second and fourth areas are connected to each other. The first areas are disposed in an area between the inner edge of the heat sink and the outer edge of the light absorption film as viewed from the thickness direction of the support layer.

Inventors:
HIROSE KOTARO (JP)
ADACHI MASAHIRO (JP)
YAMAMOTO YOSHIYUKI (JP)
FUJII SHUNSUKE (JP)
MITSUHASHI FUMINORI (JP)
Application Number:
PCT/JP2020/024591
Publication Date:
January 14, 2021
Filing Date:
June 23, 2020
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G01J1/02; H01L35/00; H01L35/14; H01L35/32; H01L35/34
Foreign References:
JP2001527644A2001-12-25
JP2007309796A2007-11-29
JP2015169533A2015-09-28
JP2012215531A2012-11-08
JP2008501964A2008-01-24
JP2015197371A2015-11-09
JP2001044522A2001-02-16
Attorney, Agent or Firm:
KITANO, Shuhei et al. (JP)
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