Title:
LIGHT CONTROL FILM
Document Type and Number:
Japanese Patent JP2018138971
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a light control film which can attain a light collecting efficiency and an anti-glare performance at the same time.SOLUTION: A light control film 1 includes: a base part 3d having a plurality of recesses separate from one another along one direction of a first surface; and a plurality of louver parts 3e in the plurality of recesses, the louver parts having different optical characteristics from those of the base part. The louver part has at least two first parts 3f having a different refractive index from that of the base part; and a second part 3g between the first parts and the first surface, the second part having a different refractive index from that of the first parts and the first parts being arranged along one direction and having different sizes.SELECTED DRAWING: Figure 1
Inventors:
YANAGISAWA SHUMPEI
Application Number:
JP2017033596A
Publication Date:
September 06, 2018
Filing Date:
February 24, 2017
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G02B5/00; F21S11/00; F21V5/02; G02B5/02
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Yukihiro Hotta
Yasushi Kawasaki
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Yukihiro Hotta
Yasushi Kawasaki