The invention is characterized by the following steps: selecting a predetermined progressive addition lens with a given object distance function A1(x,y), selecting an object distance function A2 (x=xo,y) along the main line of vision of the predetermined progressive addition lens for a spectacle lens to be derived therefrom; finding representation U:y→y' along the main line of vision in such a way that the corresponding value y' can be calculated for every value of y, wherein A1 (x=xo, y) = A2 (x=xo, y'), calculating the theoretical values S(x,y) wherein S(x,y')=S(x,U(y)).
Das Gemeinschaftliche Sortenamt sucht einen stellvertretenden Vorsitzenden der Beschwerdekammer (Teilzeitaufgabepatents-wipo patents-wipo