Title:
EDGE LIGHT-TYPE SURFACE LIGHT SOURCE DEVICE AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/183675
Kind Code:
A1
Abstract:
A surface light source device (10) provided with a light guide plate (120) and a plurality of LED light source substrates (140) for emitting light into the light guide plate (120) from the side surface of the light guide plate (120). The LED light source substrates (140) are disposed on each of a set of sides of the light guide plate (120) that face each other, and are shorter than the length of the sides on which the LED light source substrates (140) are disposed.
Inventors:
OKANO MASANOBU
SUMITANI KEN
SUMITANI KEN
Application Number:
PCT/JP2013/065599
Publication Date:
December 12, 2013
Filing Date:
June 05, 2013
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
F21S2/00; F21Y101/02
Domestic Patent References:
| WO2009110145A1 | 2009-09-11 | |||
| WO2008007487A1 | 2008-01-17 |
Foreign References:
| JP2012048964A | 2012-03-08 | |||
| JP2004333859A | 2004-11-25 | |||
| JP2009081096A | 2009-04-16 | |||
| JP2012089291A | 2012-05-10 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
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