A method for calculating the increase and / or the distortion, and method for producing a spectacle lens with low magnification and / or the distortion

摘要

The present invention relates to a method for the calculation of the local increase and / or of the local deformation of a spectacle lens in at least a predetermined or predeterminable direction of view, wherein the spectacle lens for the correction of a refraction deficit of an eye is designed and at least a first object side face and a second surface facing the eye, comprising the steps of:- Calculating for the predetermined or predeterminable the viewing direction of the profile of a principal ray, which is of a predetermined or predeterminable, infinitesimally small object and after refraction through the spectacle lens by means of the center of rotation of the eye of the eye, by means of the entrance pupil of the eye or by the main plane of the eyelet;- Determining the principal curvatures and - directions of a the main beam associated local wave front of the breaking through the spectacle lens;- Calculating the local increase and / or of the local deformation of the ophthalmic lens from the determined principal curvatures and - directions of the local wave front, the data of the course of the main beam and the data of the spectacle lens.