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Title:
OPTICAL DIFFRACTION ELEMENT, OPTICAL COMPUTATION SYSTEM, AND OPTICAL DIFFRACTION ELEMENT MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/130689
Kind Code:
A1
Abstract:
The present invention realizes an optical diffraction element with which different optical computation can be executed for each wavelength of input light. An optical diffraction element (1) is constituted by a plurality of microcells of which the thicknesses or refractive indices are set so as to be mutually independent. The optical diffraction element includes n-types (n is a natural number of at least 2) of microcells (C1, C2, … Cn) having different aperture sizes.

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Inventors:
KUSAKA HIROYUKI (JP)
KASHIWAGI MASAHIRO (JP)
Application Number:
PCT/JP2021/030193
Publication Date:
June 23, 2022
Filing Date:
August 18, 2021
Export Citation:
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Assignee:
FUJIKURA LTD (JP)
International Classes:
G02B5/18; G02F3/00; G03H1/02
Domestic Patent References:
WO2019124106A12019-06-27
Foreign References:
JP2018146750A2018-09-20
JP2009015305A2009-01-22
JP2008250054A2008-10-16
JP2007057622A2007-03-08
JP2009534700A2009-09-24
US20120266935A12012-10-25
US20160131808A12016-05-12
US20130076581A12013-03-28
US20190143736A12019-05-16
US20170351111A12017-12-07
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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