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Title:
LIGHT DISTRIBUTION CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/123967
Kind Code:
A1
Abstract:
This light distribution control device (1) is provided with: a first substrate (10) having light transmittance; a second substrate (20) which is disposed to face the first substrate (10) and has light transmittance; a first electrode layer (40) and a second electrode layer (50) which are disposed between the first substrate (10) and the second substrate (20) to face each other and have light transmittance; and a light distribution layer (30) which is disposed between the first electrode layer (40) and the second electrode layer (50) and distributes incident light. The light distribution layer (30) comprises: a convexo-concave structure layer (31) having a plurality of protrusions (33); and a refractive index variable layer (32) which is disposed to be filled between the plurality of protrusions (33) and the refractive index of which changes in response to a voltage applied between the first electrode layer (40) and the second electrode layer (50), wherein the plurality of protrusions (33) are installed to form a plurality of wave lines extending in a predetermined direction when the first substrate (10) is viewed in a plan view.

Inventors:
KITAMURA, Kazuki
SHIBATA, Masaomi
ITO, Norihiro
OTA, Masuyuki
Application Number:
JP2018/043103
Publication Date:
June 27, 2019
Filing Date:
November 22, 2018
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
G02F1/13; E06B5/00; G02B5/00; G02F1/167; G02F1/17; F21S11/00; F21V11/04
Domestic Patent References:
WO2016163079A12016-10-13
WO2017119021A12017-07-13
WO2017098687A12017-06-15
Attorney, Agent or Firm:
NII, Hiromori et al. (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10, Nishi Nakajima 5-chome, Yodogawa-ku, Osaka-cit, Osaka 11, 〒5320011, JP)
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