Patent ID: 9250361
Filing Date: 2016-02-02
CPC Classification: G02B

Claim Text:
1. An antireflection film comprising, stacked in this order: a transparent base material; a first layer formed by curing a coating film containing an ionizing radiation curing material, a quaternary ammonium salt material, and a fluorine-based leveling material, the leveling material being in an amount within a range of 0.05 to 5.0 parts by mass based on 100 parts by mass of a total of the ionizing radiation curing material, the quaternary ammonium salt material, and the leveling material; and a second layer whose refractive index is lower than a refractive index of the first layer, wherein for a surface of the first layer before formation of the second layer, a micro-indentation hardness obtained when an indentation depth is 100 nm is within a range of 0.45 GPa to 1.0 GPa.