METHOD FOR MANUFACTURING OPHTHALMIC LENSES BY MACHINING

摘要

The invention relates to a method for manufacturing an ophthalmic lens by machining, comprising the steps of providing and mounting a blank on a first supporting device having a first machining reference frame in a first position in which a lower surface of said blank is opposite said first device; machining, in said first position in said first reference frame, an upper surface of said blank, machining in a second predetermined machining reference frame which is known relative to said first at least one mechanical referencing element on said blank, and providing a second supporting device comprising at least one complementary mechanical referencing element configured such as to engage with said at least one mechanical referencing element so that the latter is positioned and supported on said second device in a second predetermined position.