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Title:
SURFACE LIGHT SOURCE DEVICE
Document Type and Number:
Japanese Patent JP2011082123
Kind Code:
A
Abstract:

To provide a surface light source device capable of reducing generation of luminance unevenness resulting from a support member to support a light guide body.

This surface light source device 10 includes a plurality of light guide bodies 21... provided parallel with the longitudinal direction thereof while having gaps respectively, a plurality of light sources to make light enter from at least one end faces respectively in the longitudinal direction of the light guide bodies 21, a diffusion plate 15 provided on the emitting side of light in the light guide body 21 to extract light guided in the inside of the light guide body 21, and a support member 31 to support the gap 22 of the light guide body 21 at a prescribed intervals. The support member 31 is made of a member having optical transparency and light scattering properties.


Inventors:
IKUTA KAZUYA
NISHIOKA SUMUTO
SAKAI HIROSUKE
Application Number:
JP2009235739A
Publication Date:
April 21, 2011
Filing Date:
October 09, 2009
Export Citation:
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Assignee:
SHARP KK
International Classes:
F21S2/00; F21Y101/02
Domestic Patent References:
JP2009110794A2009-05-21
JP2009043706A2009-02-26
Attorney, Agent or Firm:
Kenzo Hara International Patent Office



 
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