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.
NISHIOKA SUMUTO
SAKAI HIROSUKE
| JP2009110794A | 2009-05-21 | |||
| JP2009043706A | 2009-02-26 |