Title:
OPTICAL ELEMENT AND ILLUMINATING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/176360
Kind Code:
A1
Abstract:
Provided is an optical element that can control the light distribution or a light distribution pattern. The optical element comprises two laminated liquid crystal cells (120, 110). Each of the two liquid crystal cells comprises: a first substrate (111-1, 121-1) on which a first transparent electrode (112-1, 122-1) and a second transparent electrode (112-2, 122-2) are alternately arranged in a first direction; a second substrate (111-2, 121-2) on which a third transparent electrode (112-3, 122-3) and a fourth transparent electrode are alternately arranged in a second direction intersecting the first direction; and a liquid crystal (113, 123) between the first substrate and the second substrate. The second substrate (111-2) of one of the two liquid crystal cells, and the first substrate (121-1) of the other of the two liquid crystal cells are adjacent.
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Inventors:
KUROKAWA TAE (JP)
KOITO TAKEO (JP)
IKEDA KOJIRO (JP)
KOITO TAKEO (JP)
IKEDA KOJIRO (JP)
Application Number:
PCT/JP2021/046385
Publication Date:
August 25, 2022
Filing Date:
December 15, 2021
Export Citation:
Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
F21V9/40; G02F1/1347; G02B3/14; G02F1/13; G02F1/1343
Foreign References:
| US20180196318A1 | 2018-07-12 | |||
| JP2003045204A | 2003-02-14 | |||
| JP2010525388A | 2010-07-22 | |||
| JP2005317879A | 2005-11-10 | |||
| JP2010230887A | 2010-10-14 | |||
| JP2014160277A | 2014-09-04 |
Attorney, Agent or Firm:
TAKAHASHI, HAYASHI AND PARTNER PATENT ATTORNEYS, INC. (JP)
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