METHOD FOR PRODUCING A MARK ON A SUBSTRATE SURFACE, IN PARTICULAR MADE OF OPTICAL OR OPHTHALMIC GLASS

摘要

The invention concerns a method for producing a mark on a substrate surface which comprises the following steps: a) placing a mask proximate to or on said substrate, the part of the substrate not protected by the mask defining said mark; b) subjecting the part of the substrate not protected by the mask to a treatment increasing the surface tension of said surface part; c) grafting a layer with controlled hydrophily by a plasma-enhanced chemical vapor deposition on the surface part of the substrate whereof the surface tension has been increased; d) eliminating the mask.