Title:
DAYLIGHTING SYSTEM
Document Type and Number:
Japanese Patent JP2016100317
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a daylighting system capable of suppressing brightness unevenness and color unevenness which can occur to the light which illuminates the indoors.SOLUTION: A daylighting system 10 includes: a daylighting part 20 having a daylighting surface 22; and a cylindrical part 30 for being connected to the daylighting part 20 via a connection surface 11, and for guiding light entered from the daylighting part 20. The daylighting part 20 deflects the light taken in from the daylighting surface 22 and allows the light to travel toward the connection surface 11. An anisotropic diffusion element 40 which selectively diffuses light in a main diffusion surface parallel with both directions of a normal direction nd1 to the daylighting surface 22 and a normal direction nd2 to the connection surface 11 is provided at least at one of the daylighting part 20 and the cylindrical part 30.SELECTED DRAWING: Figure 7
Inventors:
TANIGUCHI YUKIO
HORIGUCHI RYUJI
HORIGUCHI RYUJI
Application Number:
JP2014239156A
Publication Date:
May 30, 2016
Filing Date:
November 26, 2014
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
F21S11/00; F21V5/02; F21V5/04; G02B5/00; G02B5/02
Attorney, Agent or Firm:
Hirohito Katsunuma
Hiroyuki Nagai
Yukihiro Hotta
Kuno Yoshifumi
Hiroyuki Nagai
Yukihiro Hotta
Kuno Yoshifumi