| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface light source device capable of emitting the uniform light of high brightness even when the number of light sources is small. <P>SOLUTION: In this surface light source device 1, three or more light sources 2... are disposed at intervals, and a deflection structure plate 3 for changing the direction of the light emitted from the light sources is disposed at a front side of the light sources 2.... The deflection structure plate 3 is constituted to emit both of lights entering from two adjacent light sources in a region corresponding to a region between two adjacent light sources 2, 2, of the deflection structure plate 3, toward the front side direction (a) in the normal direction of the deflection structure plate 3, and a shielding member 7 for preventing the light emitted from the light sources excluding two adjacent light sources, from directly entering to the region corresponding to the region between two adjacent light sources of the deflection structure plate 3. <P>COPYRIGHT: (C)2009,JPO&INPIT |
