Title:
LIGHT DIFFRACTION ELEMENT UNIT AND OPTICAL COMPUTATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/176458
Kind Code:
A1
Abstract:
In order to provide a light diffraction element unit in which the shape of the main surface of a substrate can easily be maintained as a flat surface even when the light diffraction element unit is standalone, this light diffraction element unit (U) comprises: a layered substrate (11); a light diffraction structure (12) that is formed on a part (central portion 113) of the main surface (111) of the substrate (11); and a holding part (20) that is provided with an aperture (23) and that holds an annular portion (114) which surrounds a part (central portion 113) of the substrate (11) so that the light diffraction structure (12) is contained within the aperture (23).
Inventors:
KUSAKA HIROYUKI (JP)
KASHIWAGI MASAHIRO (JP)
KASHIWAGI MASAHIRO (JP)
Application Number:
PCT/JP2022/001047
Publication Date:
August 25, 2022
Filing Date:
January 14, 2022
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
G02B5/18; G02F3/00; G06N3/067
Domestic Patent References:
| WO2019147828A1 | 2019-08-01 |
Foreign References:
| JP2009134232A | 2009-06-18 | |||
| JP2010145672A | 2010-07-01 | |||
| JP2006001050A | 2006-01-05 | |||
| JP2020024284A | 2020-02-13 | |||
| JP2018189939A | 2018-11-29 | |||
| US7847225B2 | 2010-12-07 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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