Patent ID: 8778450
Filing Date: 2014-07-15
Classification: C03C,G02B,Y10T

Abstract:
1. A method of manufacturing an optical member having (a) a base material and (b) an antireflection coating on the base material, the method comprising: forming a layer comprising aluminum or aluminum oxide on the base material; bringing the layer into contact with water to form a fine textured structure having crystalline particles of aluminum oxide in a surface of the layer; and bringing the layer having the fine textured structure into contact with a liquid in which a water-soluble phosphoric acid compound is dispersed in water or a water-soluble organic solvent, wherein the content of the phosphoric acid compound in the liquid is 0.01% by weight or more and 30% by weight or less, so as to form a fine textured structure containing a phosphate compound on the base material, wherein the reactivity between the phosphoric acid compound and the layer having the fine textured structure is controlled so as not to damage the antireflection function of the fine textured structure.