| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a configuration and a construction method of cross-sectionally V-shape optical path grooves for realizing a uniform light emitting body having high luminance and little irradiation unevenness. <P>SOLUTION: Cross-sectionally V-shape grooves 2 are formed on a substrate layer 1 using a transparent material and dot-pattern printing 3 is formed between the rows of V-shape grooves. The cross-sectionally V-shape grooves 2 are constructed with a certain spacing at the end surface near a light source. The V-shape grooves are engraved shallow at the portion near the light source and engraved deep at the center part, thus minimizing attenuation and lead the light, thereby a planar light emitting body having a high illuminance on the whole surface with uniform emission of light is realized. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
