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

Claim 0:
1. A product comprising:
(i) a progressive power spectacle lens or (ii) a representation of the progressive power spectacle lens having instructions for the production thereof using an additive method, the representation being stored on a non-transitory data medium as computer-readable data, or (iii) a non-transitory data medium with a virtual representation of the progressive power spectacle lens as computer-readable data having instructions for the production thereof using an additive method, wherein the progressive power spectacle lens includes:
a uniform substrate having a spatially varying refractive index, a front surface, and a back surface,
wherein, during use as intended, the front surface and the back surface either jointly form outer surfaces of the progressive power spectacle lens or at least one of the front surface or the back surface is exclusively provided with one or more functional coatings which do not contribute or at each point contribute less than 0.004 dpt to a spherical equivalent of a dioptric power of the progressive power spectacle lens,
wherein at least one of the front surface is or the back surface is configured as a freeform surface,
wherein
(a) the refractive index varies in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, wherein a distribution of the refractive index in the first spatial dimension and the second spatial dimension in all planes perpendicular to the third spatial dimension has neither point symmetry nor axial symmetry.