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Title:
LIGHT UTILIZATION SPACE SYSTEM
Document Type and Number:
Japanese Patent JP2017162808
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a light utilization space system which is easily energy-saved and has high flexibility for position of a lighting fixture.SOLUTION: A light utilization space system 100 is provided which comprises a ceiling surface 110, a wall surface 130, and a light source 140, and in which the light emitted from the light source 140 is reflected by at least one of the ceiling surface 110 and the wall surface 130. At least a part of the ceiling surface 110 and the wall surface 130 is formed from a high light-reflective coated steel sheet or a high light-diffusible coated steel sheet. The high light-reflective coated steel sheet has a 60-degree mirror surface glossiness of 90% or more as prescribed in JIS K 5600-4-7. The high light-diffusible coated steel sheet has a diffuse reflectance of 85% or more for the light having a wavelength of 550 nm and not including a mirror refection of an integrating sphere.SELECTED DRAWING: Figure 1

Inventors:
SEIKI TAKAYUKI
SUZUKI KIWAMI
HAMAMURA TOMONARI
KAYAMA YOSHIO
KUMAKURA SHINTARO
YAZAKI MITSUHIKO
NOMURA HIROMASA
FUSHIMI MITSUMASA
NISHIMURA KAZUMI
Application Number:
JP2017041915A
Publication Date:
September 14, 2017
Filing Date:
March 06, 2017
Export Citation:
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Assignee:
NIPPON STEEL & SUMIKIN COATED SHEET CORP
International Classes:
F21S2/00; E04B9/00; E04F13/12; G02B5/02
Domestic Patent References:
JP2011238358A2011-11-24
JP2007217622A2007-08-30
JP2006192660A2006-07-27
JP2011225744A2011-11-10
JP2001035202A2001-02-09
JP2015090778A2015-05-11
JPS5455178U1979-04-17
JP2017018077A2017-01-26
JPH0636608A1994-02-10
JP2014130247A2014-07-10
JP2007085118A2007-04-05
JP2009068324A2009-04-02
JP2006272036A2006-10-12
JP2001316849A2001-11-16
Foreign References:
WO2010064725A12010-06-10
Attorney, Agent or Firm:
Patent business corporation Hokuto patent office