Procedure for the manufacture of a lens for glasses with spherical anterior face and multifocal posterior face

摘要

Procedure for the manufacture of lenses for glasses (1) with a progressive viewing surface, characterized in that each of the lenses for glasses (1) is manufactured from semi-finished products with spherical or aspherical convex anterior rotationally symmetrical surfaces (2) with few radii different so that all adaptation of the individually necessary dioptric effect is carried out with the rear surface (3) of the lens for glasses (1), configured as a progressive viewing surface.