OPTICAL LENS HAVING AN INTERFERENTIAL COATING AND A MULTILAYER SYSTEM FOR IMPROVING ABRASION-RESISTANCE

The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, said rear main face of which being successively coated with: - (A) a first high refractive index sheet having a refractive index higher than 1.55, which does not comprise any TaaOs layer, - (B) a second low refractive index sheet having a refractive index of 1.55 or less in direct contact with the former sheet, - (C) a third high refractive index sheet having a refractive index higher than 1.55 in direct contact with the former sheet, - a monolayer sub-layer having a thickness higher than or equal to 100 nm in direct contact with the former sheet (C), - a multilayer interferential coating comprising a stack of at least 6 layers with at least one high refractive index layer and at least one low refractive index layer, wherein the outermost high refractive index layer of the multilayer interferential coating has a thickness lower than 40 nm, and the mean reflection factor Ruv on said rear main face between 280 nm and 380 nm, weighted by the function W(λ) defined in the ISO 13666:1998 standard, is lower than 10 %, for an angle of incidence of 35°.