| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mold for manufacturing an optical sheet capable of suppressing the generation of a spot flaw and a linear flaw. <P>SOLUTION: The mold for manufacturing the optical sheet is equipped with a main body having a fine recessed shape 34, which has an R-shape with a radius of curvature of 5 μm or a flat part with a width of 5 μm provided to the bottom part leading ends 32 thereof, formed to the surface thereof and the surface treatment layer 36, of which the thickness is 0.8 times or more the radius of curvature or the width, provided to the surface of the main body. <P>COPYRIGHT: (C)2003,JPO |
