METHOD FOR INCORPORATING AN ADDITIVE IN A THIN LAYER FORMED ON A SUBSTRATE AND ITS USE IN OPHTHALMIC OPTICS

摘要

The invention concerns a method for incorporation comprising the following steps: (a) forming on at least one surface of a substrate a thin impregnable layer; (b) depositing by spin coating on said impregnable thin layer an impregnating composition comprising at least an additive incorporated in an appropriate diluting medium; (c) diffusing the impregnating additive within said impregnable thin layer; (d) treating the coated substrate of the impregnated thin layer to eliminate, at least partly, the diluting medium of the impregnated thin layer. The invention is useful for colouring optical lenses.