Title:
OPTICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2023/032975
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an optical member that uses a metasurface structure and has high light use efficiency. This optical member solves the problem by comprising a substrate, a metasurface structure configured from a plurality of arranged microstructures, and having a plurality of regions A each configured from a plurality of regions X having phase modulation amounts different from each other, and a phase correction layer that corrects wavefront aberration of the metasurface structure, wherein the phase modulation amounts of the regions X of the metasurface structure decrease in stages in one direction, and the phase correction layer has regions the phase modulation amounts of which change according to the regions A.
Inventors:
YASUDA HIDEKI (JP)
YANAI YUJIRO (JP)
SAITOH YUKITO (JP)
YANAI YUJIRO (JP)
SAITOH YUKITO (JP)
Application Number:
PCT/JP2022/032573
Publication Date:
March 09, 2023
Filing Date:
August 30, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B1/02; G02B3/00; G02B5/18; G02B5/30
Domestic Patent References:
| WO2020223399A1 | 2020-11-05 | |||
| WO2020214617A1 | 2020-10-22 |
Foreign References:
| US20200174163A1 | 2020-06-04 | |||
| JP2019516128A | 2019-06-13 | |||
| JP2005274847A | 2005-10-06 | |||
| JP2021140152A | 2021-09-16 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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