CPC G02B 1/118 (2013.01) | 9 Claims |
1. An optical body comprising:
a concave-convex structure formed on a surface of a base material,
wherein an average period of concavities and convexities of the concave-convex structure is equal to or shorter than a wide wavelength band including a visible light band,
a standard deviation of differences between respective positions of bottom faces of all the concavities of the concave-convex structure in a normal direction of a flat surface of the base material and a median of the positions of all the bottom faces is greater than or equal to 25 nm, and
a standard deviation of differences between respective positions of vertexes of all the convexities of the concave-convex structure in the normal direction of the flat surface of the base material and a median of the positions of all the vertexes is greater than or equal to 35 nm.
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