The invention relates to a transparent glass substrate comprising an anti-reflection coating on at least one of the surfaces thereof, said stack including alternating layers, including at least one series of a high-index layer having a thickness of 40 to 125 nm and made of a dielectric material having a refractive index of more than 1.8, and a low-index layer made of a dielectric material having a refractive index of less than 1.6, characterised in that said high-index layer in said series includes or preferably is made of a material of the general formula SnxZnyOz, wherein the Sn/Zn mass ratio is between 50/50 and 85/15.
Transparent substrate comprising an anti-eflection coating