Patent ID: 7939127

Claim:
Method for marking one face of an ophthalmic lens of the type including a hydrophobic and/or oleophobic outermost layer on a substrate or an underlying coating having a higher surface energy than the hydrophobic and/or oleophobic outermost layer, wherein a mask having a configuration complementary to a required mark is positioned between the face of the lens to be marked and an energizing source adapted to eliminate selectively the outermost layer in order to reveal the substrate or underlying coating, and wherein there is deposited onto said outermost layer a temporary adhesion enhancing layer for enhancing adhesion of the face of the lens with a lens retaining shoe when trimming the lens, said temporary adhesion enhancing layer having a surface energy higher than that of the outermost layer and a thickness of less than about 5 nm and wherein the energizing source acts on the outermost layer through the temporary adhesion enhancing layer.