Patent ID: 11892712
Assignee: CARL ZEISS VISION INTERNATIONAL GMBH
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 30:
31. The method as claimed in claim 30, wherein the at least one intended optical property of the progressive power spectacle lens in a central intermediate portion between the distance portion and the near portion is reduced vis-à-vis
(i) the corresponding intended optical property for the progressive power spectacle lens with a spatially non-varying refractive index or
(ii) the corresponding optical property of the progressive power spectacle lens with a spatially non-varying refractive index,, or wherein the intended residual astigmatism of the progressive power spectacle lens in a central intermediate portion between distance portion and near portion is reduced vis-à-vis
(i) the intended residual astigmatism for the progressive power spectacle lens with a spatially non-varying refractive index or
(ii) the residual astigmatism of the progressive power spectacle lens with a spatially non-varying refractive index.