PROCEDE DE FABRICATION D'UNE LENTILLE OPHTALMIQUE COMPORTANT UNE ETAPE DE MARQUAGE LASER POUR REALISER DES GRAVURES PERMANENTES SUR UNE SURFACE DE LADITE LENTILLE OPHTALMIQUE

摘要

The invention concerns a method for producing an ophthalmic lens comprising a step of laser marking in order to produce permanent etchings on one surface of said lens, at least one predefined step subsequent to said marking step and implementing extreme thermal stress that is applied to said surface, and a step of determining an operating point (PF) of a laser marking machine (1) configured to implement said marking step from geometric characteristics (Di) of said etchings to be made, said determining step comprising the steps of determining (304) a value (CPM) representative of the deformation of said lens on at least one treatment area of said surface, from said stress and data relative to a predetermined material from which said lens is formed, and of deducing (308) said operating point from said value representative of deformation and from said geometric characteristics.