| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a former planar lighting system having a light source arranged between a light deflection control board and a light reflection member has an uneven luminance and requires much power consumption. SOLUTION: The planar lighting system 10 according to the present invention comprises a plurality of planar light sources 11 extending in a first direction and aligned in a second direction crossing the first direction, a light deflection control board 12 arranged to cover the planar light sources 11, and a light reflection member 13 arranged opposite to the light deflection control board 12 to hold the planar light sources 11. The planar light source 11 includes a pair of planar light emission portions 11c and 11d facing to the light deflection control board 12 and the light reflection member 13 respectively, the light reflection member 13 includes a plurality of concave reflection surfaces 13a extending in the first direction and aligned with a predetermined space in the second direction. The alignment space of the planar light sources 11 is set to be the same as of integral multiple of that of the concave reflection surface 13a of the light reflection member 13, and the plane light emission portion 11d of the planar light source 11 facing to the light reflection member 13 is arranged across the neighboring two concave reflection surfaces 13a of the light reflection member 13. COPYRIGHT: (C)2006,JPO&NCIPI |
