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Title:
PHOTOELECTRIC CONVERSION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/019307
Kind Code:
A1
Abstract:
This photoelectric conversion element 1 comprises: a photoelectric conversion unit 30 that receives light and generates an electrical charge; an electrical charge accumulation detector 70 that accumulates electric charges received from the photoelectric conversion unit 30; an optical confinement unit 50 having a back-surface-side reflection layer 50B and a front-surface-side reflection layer 50F provided on the photoelectric conversion unit 30, the optical confinement unit 50 confining light in the photoelectric conversion unit 30 so that the light reciprocates in the photoelectric conversion unit 30; and a light direction conversion unit 60 including an outer lens 10 positioned on the back-surface-side-reflection-layer 50B side, the light direction conversion unit 60 determining the direction in which the light in the photoelectric conversion unit 30 advances. The light direction conversion unit 60 is positioned on the outer side of a region sandwiched by the back-surface-side reflection layer 50B and the front-surface-side reflection layer 50F, and causes light to advance in a direction away from the optical axis Z of the outer lens 10 each time reflection of the light between the back-surface-side reflection layer 50B and the front-surface-side reflection layer 50F is repeated.

Inventors:
KAWAHITO SHOJI (JP)
Application Number:
PCT/JP2021/027180
Publication Date:
January 27, 2022
Filing Date:
July 20, 2021
Export Citation:
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Assignee:
UNIV SHIZUOKA NAT UNIV CORP (JP)
International Classes:
G02B3/00; G02B3/02; H01L27/146; H01L31/054; H01L31/056
Domestic Patent References:
WO2019093479A12019-05-16
WO2018100998A12018-06-07
Foreign References:
JP2009188316A2009-08-20
JP2019114642A2019-07-11
US20180006072A12018-01-04
JP2017011091A2017-01-12
JP2018110147A2018-07-12
JP2017134163A2017-08-03
JPH06140610A1994-05-20
JP2011003860A2011-01-06
JP2013065688A2013-04-11
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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