| 摘要 |
<p>Disclosed is an optical element that reduces a flat section of an outermost surface of the optical element and improves optical performance such as anti-reflection performance. A cross-section, which surrounds a concave section (15), has a mesh-like ridge section (13) that links apex sections (12) of a bell-shaped convex section (11). Superfine concave-convex structures (10) that do not have flat sections on the outermost surface are formed on the surface of the optical element (K) by the provision, between the ridge section intersection points (13a) in the ridge section (13), of deepest parts (13b) of the ridge section that are lower than the ridge section intersection points (13a), thereby improving anti-reflection performance and other optical performance in the optical element (K).</p> |
