| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve utilization efficiency of light emitted by a light source for reducing power consumption. <P>SOLUTION: A light scattering body 24 is stored in a light scattering body storage part 31 recessed in the front face of a light guide 23. End faces 23b, 23c in X direction substantially parallel to a front face 23a in the light guide is provided with an incident face 22 which light from a light source enters, and lateral faces 23d, 23e and a back face 23f which are faces substantially parallel to X direction in the light guide are provided with a lateral face prism 42 and a back face prism 43 which reflect light passing though the light guide to condense the light to the light scattering body. <P>COPYRIGHT: (C)2013,JPO&INPIT |
