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Patent Searching and Data


Title:
LIGHT DISTRIBUTION CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/163474
Kind Code:
A1
Abstract:
This light distribution control device (1) is provided with a first substrate (10) and a second substrate (20) that are arranged facing each other and are transparent, a first electrode layer (40) and a second electrode layer (50) that are arranged opposite of each other between the first substrate (10) and the second substrate (20) and that are transparent, and a light distribution layer (30) that is arranged between the first electrode layer (40) and the second electrode layer (50). The first light distribution layer (30) includes an uneven structure layer (31) which comprises multiple protrusions (33), and a variable refractive index layer (32) which is arranged so as to fill between the protrusions (33) and which has a refractive index that changes depending on the voltage applied between the first electrode layer (40) and the second electrode layer (50). Defining a pair of side surfaces as a facing first side surface (35) and second side surface (36) of two adjacent protrusions of the multiple protrusions (33), there are at least two combinations in which at least one of the inclination angle of the first side surface (35) and the inclination angle of the second side surface (36) is different.

Inventors:
SHIBATA, Masaomi
OTA, Masuyuki
Application Number:
JP2019/003521
Publication Date:
August 29, 2019
Filing Date:
January 31, 2019
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:
G02F1/167; E06B5/00; B60J3/04
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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