Title:
OPTICAL DUCT STRUCTURE INCLUDING LIGHT PATTERN GENERATION FUNCTION
Document Type and Number:
Japanese Patent JP2015141807
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To generate decorative indoor emission light with a light pattern added to incident natural light by providing a color filter to the light guide part of an optical duct.SOLUTION: A mirror surface member 4 for light pattern setting is disposed in the internal space area of a light guide part 2b of an optical duct 2 of mirror surface specification. The mirror surface member 4 holds a color filter 3, and a color filter action part 3a presenting a light transmission action is exposed to a heart-shaped pore 4b. In incident natural light, passing light (route R1) of the color filter action part 3a regarded as a color pattern 8, and reflection light from the color filter action part 3a and its surroundings regarded as a shading pattern 9 (route R2) by difference of a reflection amount are respectively projected to the wall surface or floor surface of an indoor space area 1.
Inventors:
ARAI HIDEO
Application Number:
JP2014013828A
Publication Date:
August 03, 2015
Filing Date:
January 28, 2014
Export Citation:
Assignee:
MATERIAL HOUSE KK
International Classes:
F21S11/00
Attorney, Agent or Firm:
Haruyuki Tanaka