| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of an optical element which has a function of suppressing interfacial reflection light quantity on a light incident and emitting surface, and which has in particular a reflection preventing structure on a substrate surface, by forming a fine shape with superior transfer ability in molding. <P>SOLUTION: The substrate has a plurality of protrusions arranged on the surface thereof; and the plurality of protrusions are formed independently, on the surface toward a direction normal thereto. The shapes of the protrusions aligned on the surface are shapes, remaining after removal of shapes of which the average Feret's diameter, corresponding to points aligned by representing the average center distance in adjacent six directions by p, taken as centers of gravity, is a, where the average Feret's diameter a satisfies p<a<√2p. <P>COPYRIGHT: (C)2007,JPO&INPIT |
