Process for producing an optical glass with an anti-fog coating

An optical glass with an anti-fog coating, wherein the optical glass comprises:

• a plastic glass or a mineral hardened glass, and
• at least one coating applied to the optical glass, wherein the at least one coating, proceeding from the frontal side or the rear side of the plastic glass or mineral hardened glass includes:
• a) optionally, a hard lacquer layer,
• b) an anti-reflective layer, wherein the anti-reflective layer comprises at least two discrete layers, and at least one of the layers includes at least one of a silicon oxide, silicon hydroxide, and silicon oxide hydrate layer, and
• c) an anti-fog layer on the anti-reflective layer,
• wherein the anti-fog layer is obtained by covalent binding of a halosilane to the silicon oxide, silicon hydroxide, and/or silicon oxide hydrate layer of the anti-reflective layer of b) or by treating the plastic glasses or mineral hardened glasses coated with an anti-reflective layer b) in a low-pressure plasma with pure hydrogen and in each case subsequently reacting with a compound of the formula (I) RR1C═CR2—Ax—[O—CnHm]y—R3, where
• R═H, linear C1-C10-alkyl or branched C1-C10-alkyl;
• R1═H, linear C1-C10-alkyl or branched C1-C10-alkyl;
• R2═H or Me;
• A=linear C1-C10-alkyl or branched C1-C10-alkyl, in each case optionally functionalized with OH, NH2 or SO2;
• x=0 or 1;
• CnHm=linear or branched, in each case optionally functionalized with OH or NH2;
• n=1 to 10;
• m=2n;
• y=0 to 20;
• and
• R3=Ax—CR2═CRR1, SO3Na, H or OH.