Title:
OPTICAL DIFFRACTION ELEMENT AND POSITION ADJUSTMENT METHOD FOR OPTICAL DIFFRACTION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/176332
Kind Code:
A1
Abstract:
Provided is a position adjustment method that enables accurate adjustment of the position of a second optical diffraction element with respect to a first optical diffraction element in an optical arithmetic device which comprises at least the first and second optical diffraction elements. The position adjustment method (S1) includes a step for inputting adjustment signal light to a second position adjustment optical structure (1B2) via a first position adjustment optical structure (1A2), and for adjusting the position of a second optical diffraction element (1B) with respect to a first optical diffraction element (1A) while referring to the adjustment signal light outputted from the second position adjustment optical structure (1B2).
Inventors:
KUSAKA HIROYUKI (JP)
KASHIWAGI MASAHIRO (JP)
KASHIWAGI MASAHIRO (JP)
Application Number:
PCT/JP2021/045042
Publication Date:
August 25, 2022
Filing Date:
December 08, 2021
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
G02B5/18; G02F3/00
Domestic Patent References:
| WO2019147828A1 | 2019-08-01 |
Foreign References:
| JP2009134232A | 2009-06-18 | |||
| JP2005308643A | 2005-11-04 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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