Process for marking an optical eyeglass

A process for marking an optical eyeglass equipped with an anti-smudge surface coating and a temporary coating used to facilitate the blocking of the lens in an edging operation and placed on said anti-smudge surface coating, comprising the following steps:

• providing an anti-smudge surface coating in the optical eyeglass;
• placing a temporary coating on said anti-smudge surface coating;
• detreating by a laser beam despite the presence of the temporary coating, so as to locally detreat an area of the optical eyeglass by removing the temporary coating and the anti-smudge surface coating until a lower layer of the eyeglass is reached, which layer is located under said anti-smudge surface coating and made of a material that is different from the anti-smudge surface coating, thus forming at least one detreated zone that passes through the temporary coating and the anti-smudge surface coating;
• removing the temporary coating;
• and
• depositing ink in the detreated zone in order to form at least one inked pattern, so that the ink adheres to the lower layer present at the bottom of the detreated zone;
• wherein the at least one detreated zone is made up of a plurality of holes forming pixels;
• wherein at least two different inks of different colors are deposited in adjacent holes to obtain a two-color or polychromatic pattern or macroscopic pattern element;
• wherein deposition of inks of different colors in adjacent holes prevents the deposited inks from mixing;
• and
• wherein the step of depositing the ink in said at least one detreated zone is carried out by pad printing by an inking stamp which is dimensioned to cover at least the entirety of the pattern created by the at least one detreated zone created on the surface of the optical eyeglass, and wherein the inking stamp has a geometric shape selected from a parallelepipedal shape and an ovoid shape.