Plastic lens

摘要

The invention relates to a plastic lens having an antireflection coating comprising organic materials. The antireflection coating is applied to the surface of a cured coating containing the coating compositions (A) and (B) below as the principal constituents: … …  (A) colloidal silicon dioxide having a particle diameter of from 1 to 100 nm and …  (B) hydrolysis products and/or partial condensation products of one or more silanes of the formula R<1>-Si-(OR<2>)3 in which R<1> is an organic radical containing epoxide groups, and R<2> is a hydrocarbon radical having 1 to 4 carbon atoms, an alkoxyalkyl radical or an acyl radical having 1 to 4 carbon atoms. …