Title:
OPTICAL DUCT DEVICE
Document Type and Number:
Japanese Patent JP2016066423
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical duct device capable of sufficiently enduring vibration of an earthquake or the like.SOLUTION: An optical duct device 100 includes: a light collection unit 1 collecting sunlight; a light radiation unit 2 radiating light collected from the light collection unit 1 into a room; and a duct unit 3 containing a first duct 30 and a second duct 30 connected to each other, and forming an optical path LP in which light propagates between the light collection unit 1 and the light radiation unit 2. The duct unit 3 further contains a sheet-like viscoelastic body 35 that has a first adhesion surface 35a provided on one end surface of the viscoelastic body and adhering to an end surface 30a of the first duct 30, and a second adhesion surface 35b provided on the other end surface thereof and adhering to an end surface 30b of the second duct 30.SELECTED DRAWING: Figure 1
Inventors:
FURUSAWA MASAAKI
OKI YASUYUKI
OKI YASUYUKI
Application Number:
JP2014193030A
Publication Date:
April 28, 2016
Filing Date:
September 22, 2014
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO
International Classes:
F21S11/00
Attorney, Agent or Firm:
Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Ryuichi Nishimura
Hirose Shigeki
Kazuo Maejima
Tetsuro Shimada
Shinji Mitsuhashi
Ryuichi Nishimura
Hirose Shigeki
Kazuo Maejima