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Patent Searching and Data


Title:
OPTICAL ELEMENT AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/030482
Kind Code:
A1
Abstract:
This optical element comprises a lens that has a curved surface, and a phase difference plate that curves along the curved surface. The phase difference plate includes a transparent substrate, and a liquid crystal layer formed on the transparent substrate. The phase difference plate has a slow axis and a fast axis. The glass transition point Tgne of the phase difference plate in the slow axis direction is higher than the glass transition point Tgno of the phase difference plate in the fast axis direction.

Inventors:
SEKIKAWA KENTA (JP)
NAGAYAMA HIROMICHI (JP)
ISHIDO SO (JP)
Application Number:
PCT/JP2021/028752
Publication Date:
February 10, 2022
Filing Date:
August 03, 2021
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
G02B5/30; G02B3/00
Domestic Patent References:
WO2018021486A12018-02-01
WO2019208299A12019-10-31
Foreign References:
JP2012032527A2012-02-16
JP2013020079A2013-01-31
JP2020518007A2020-06-18
US20200249475A12020-08-06
JP2012003003A2012-01-05
JP2003295164A2003-10-15
JP2006058517A2006-03-02
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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