Manufacturing methods and quality inspection methods for optical thin film wound bodies, optical thin films, optical components, image display devices, optical thin film wound bodies.

Abstract

[Problem] To provide an optical thin film winding body that can suppress or prevent the formation of scratches and dents even when the winding hardness is relatively high and hard. [Solution] In order to achieve the aforementioned objective, the optical thin film winding body 100 of the present invention is a winding body of an optical thin film 10; characterized in that: in the outermost layer of the optical thin film winding body 100, the average value Ha of the plastic hardness tester and the plastic hardness tester hardness H1 at the center point satisfy the following mathematical formulas (1) and (2). Ha≧40 (1) 0≦|(Ha-H1)| / Ha≦0.1 (2) In the aforementioned mathematical formulas (1) and (2), H1 is the plastic hardness [N / m] at the center point in the width direction of the outermost layer of the optical thin film winding body 100, which is located on the opposite side of the end of the optical thin film winding body 100 before the winding ends; Ha is the average value [N / m] of the plastic hardness at 5 points in the width direction located on the opposite side of the end of the aforementioned optical thin film winding body before the winding ends, namely, a point 10mm away from one end, a point W / 4 away from one end, the center point, a point 10mm away from the other end, and a point W / 4 away from the other end. However, W is the width [m] of the optical thin film 10 located on the opposite side of the end of the optical thin film winding body 100 before the winding ends.

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