OPTICAL BODY, WINDOW MATERIAL, FITTING, SOLAR SHADING DEVICE, AND BUILDING

摘要

PROBLEM TO BE SOLVED: To provide an optical body capable of suppressing an occurrence of stripe-like film-thickness irregularities.

SOLUTION: The optical body includes: an optical layer having a concave-convex surface on the surface; and a wavelength selective reflecting layer formed on the concave-convex surface. The wavelength selective reflecting layer selectively directionally reflects light in a specific wavelength band while transmitting light other than the specific wavelength band therethrough. The concave-convex surface has a plurality of first structures extended in a first direction within the surface of the optical layer, and a plurality of second structures extended in a second direction within the surface of the optical layer and provided spaced from one another. The first direction and the second direction cross with each other.

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