Patent ID: 9733397
Date: 2017-08-15
CPC Classifications: B82Y,G02B,Y10S

Claim:
1. An anti-reflection coat comprising an inorganic base layer, an intermediate layer and a low refractive index layer sequentially stacked on a substrate, and preventing the reflection of incident light by optical interference effect in at least each of the inorganic base layer and the low refractive index layer, wherein the low refractive index layer is a layer including hollow silica particles adhering each other with a binder formed on the surface of the intermediate layer by a wet film formation method using a coating liquid including layer-constituting raw materials, and wherein the low refractive index layer has a refractive index chosen from a range of 1.15 to 1.24, the intermediate layer is a layer mainly composed of an organometallic compound which adheres well to the binder and having wettability to the coating liquid, the inorganic base layer is a physical vapor-deposited film composed of transparent inorganic raw materials, and wherein a reflectance of light of the anti-reflection coat in wavelength band of 400 nm to 700 nm incident at an incident angle of 0 degree is 0.5% or less, and a reflectance of light of the anti-reflection coat in wavelength band of 400 nm to 700 nm incident at an incident angle of 0 degree or more and 45 degrees or less is 1.0% or less.