| 摘要 |
<p>An array (1) having fine protrusions is provided with a substrate (2), and the fine protrusions (3), each of which is provided on the substrate (2), and which has a shape tapered toward the leading end portion from the bottom portion. When the distance between the leading end portion and the bottom portion, said distance being on a discretionary side surface of each fine protrusion (3), is expressed as (a), and the length of a second segment formed by projecting a first segment on the substrate (2) is expressed as (b), said first segment indicating the distance (a), the following relationship is satisfied: 1.0<(a/b)=7.5.</p> |
