Patent ID: 7334893

Claim:
Method for producing a progressive ophthalmic lens having at least one progressive surface, whereby the lens including a far vision part for seeing at great distances and having a far reference point, a near vision part for seeing at short distances and having a near reference point, and a progression zone situated between the far vision part and the near vision part, where the effect of the lens increases by an addition value along a principal line from a far reference point value to a near reference point value, comprising calculating and optimizing in producing the progressive lens so that at least one of an absolute value of the rotation |rot {right arrow over (A)}| and the divergence |div {right arrow over (A)}| of a vectorial astigmatism {right arrow over (A)} is minimized, an absolute value |{right arrow over (A)}| of the vectorial astigmatism {right arrow over (A)} is proportional to an absolute value of an astigmatism in a use position of the progressive lens or a surface astigmatism of the at least one progressive surface, and a direction of the vectorial astigmatism {right arrow over (A)} is proportional to a cylinder axis of an astigmatism in the use position of the progressive lens or a surface astigmatism of the at least one progressive surface of the progressive lens.