| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent occurrence of irregular illumination without lowering of brightness. <P>SOLUTION: A plurality of light sources 8 held and arranged on a lamp housing 9, a distribution plate 10 being arranged to oppose to the light sources and distributing light outgoing from the light sources, and optical sheets 11, 11, 11 arranged on the opposite side of the light sources across the distribution plate are provided. The distribution plate is formed in a shape that the plurality of recessed parts 12 and a plurality of projecting parts 13 are alternately repeated to form an appropriately uniform thickness and that respective parts opposing to the respective light sources among the surfaces 10a facing the light source of the distribution plate are respectively formed in recessed curved surfaces 13b, respectively. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
