| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the degree of freedom in design including the wall thickness, etc. of a casing and to control a region to emphasize light and a region to diffuse light as a background independently of each other. <P>SOLUTION: A second light source part 208 makes light incident from a recess 214A in the side end face of a first lens plate 214, emits the light to become a substantially uniform light quantity by a rugged part 218, and further levels the light by a diffusion sheet 220 so as to be used as background light in rendering with light. A first light source part 210 can guide light to a second lens plate 222 superimposed on the first lens plate 214 through the diffusion sheet 220, through a light guide part 224 without influencing the first lens plate 214 and emits the light partially with the light quantity more intense than the background light by a star-shaped notch part 230. <P>COPYRIGHT: (C)2012,JPO&INPIT |
