Title:
OPTICAL ARITHMETIC DEVICE AND PRODUCTION METHOD FOR OPTICAL ARITHMETIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/199761
Kind Code:
A1
Abstract:
The present invention realizes an optical arithmetic device which makes it easy to maintain the relative positional relation between planar optical diffraction elements in a prescribed relation. This optical arithmetic device (1) is provided with an optical diffraction element group (11) and a cylindrical body (12). The optical diffraction element group (11) comprises a plurality of planar optical diffraction elements (11a1-11a6) composed of a photo-curable resin. The cylindrical body (12) accommodates the optical diffraction element group (11) therein. Each of the planar optical diffraction elements (11ai) constituting the optical diffraction element group (11) has at least a portion of an outer edge thereof fixed to an inner surface of the cylindrical body (12).
Inventors:
YAMAGISHI HIROYUKI (JP)
Application Number:
PCT/JP2021/006061
Publication Date:
October 07, 2021
Filing Date:
February 18, 2021
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
G02B7/00; G02B5/20
Domestic Patent References:
| WO2013027340A1 | 2013-02-28 |
Foreign References:
| JP2000338846A | 2000-12-08 | |||
| JP2010160474A | 2010-07-22 | |||
| JP2005316414A | 2005-11-10 | |||
| JP2004144973A | 2004-05-20 | |||
| JP2000009980A | 2000-01-14 | |||
| JPH09127322A | 1997-05-16 | |||
| JP2000199812A | 2000-07-18 |
Other References:
See also references of EP 4130831A1
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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