Title:
LUMINAIRE
Document Type and Number:
Japanese Patent JP2014235991
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a luminaire capable of achieving uniformity of irradiation light, even when a space between a light source and an optical member becomes narrow, for making the luminaire for a signboard and a backlight thin.SOLUTION: In a luminaire, a light source and a plurality of pieces of light diffusion sheets on a light emitting side of the light source are overlapped and arranged so that the front and rear of the light diffusion sheets are in contact with each other. The luminaire has a light diffusion layer in which a plurality of minute particles are included on a light emitting surface of the light diffusion sheet whose light emitting surface comes into contact with an incident surface of another light diffusion sheet, out of the plurality of pieces of light diffusion sheets. Furthermore, the plurality of pieces of light diffusion sheets are fixed at a peripheral end part of the luminaire.
Inventors:
KATAYAMA KOICHI
YONEDA YOSHIHIKO
KATSURAGI TOSHIYA
KAWAMURA MASATO
YONEDA YOSHIHIKO
KATSURAGI TOSHIYA
KAWAMURA MASATO
Application Number:
JP2013119138A
Publication Date:
December 15, 2014
Filing Date:
June 05, 2013
Export Citation:
Assignee:
OJI HOLDINGS CORP
International Classes:
F21S2/00; F21V3/00; F21V3/04; G02B5/02
Domestic Patent References:
| JP2010049937A | 2010-03-04 | |||
| JP2011070145A | 2011-04-07 | |||
| JP2003272406A | 2003-09-26 | |||
| JP2001154004A | 2001-06-08 | |||
| JP2007272208A | 2007-10-18 |
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