Manufacturing method of optical thin film

Abstract

A method for manufacturing an optical sheet includes: a stage of preparing a transparent sheet-like body having a plurality of irregularities on one surface; a stage of forming a photocurable resin composition having optical transmission and / or reflection properties different from those of the body on one surface of the body; a stage of irradiating the photocurable resin composition with parallel light in a predetermined direction from a surface of the body opposite to one of the surfaces; and a stage of removing uncured portions of the photocurable resin composition. The plurality of irregularities have a plurality of prisms, each prism having a first inclined surface and a second inclined surface, the predetermined direction being closer to parallel to the second inclined surface than to the first inclined surface. none

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