| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a light guide capable of surely preventing light leakage even if it is formed by injection molding. SOLUTION: An optical sheet bus 10 molded by injection molding is so finished that its surface roughness Ra attains≤1.0μm and that the height of a level difference formed on its surface attains≤10μm. COPYRIGHT: (C)2006,JPO&NCIPI |
