A method of and an apparatus for manufacturing an optical lens

摘要

The invention relates to a method of manufacturing an ophthalmic lens, the method comprising: providing edge contour data defining an edge contour of a first surface of a lens member; blocking the lens member with respect to a manufacturing axis of rotation; providing a relative rotation of the lens member with respect to a manufacturing tool about the machining axis of rotation; and manufacturing a first surface of the lens member. The manufacturing axis of rotation passes through a region of a geometrical barycentre point of the first surface of the lens member wherein the geometrical barycentre point is determined according to the edge contour data. The invention further relates to a lens manufacture apparatus for implementing the method.