Carl Zeiss Vision International Gmbh

Carl Zeiss Ag

Dieter Braunger

Peter Pacher

Paul Bilsdorfer

Tobias Weber

A spectacle lens design includes a first zone which has a focal power that provides a focused image on the fovea and a given a height and width. A second zone at least partly surrounds the first zone and contains at least one of the following: (i) focusing structures providing a focal power resulting in a myopic defocus or (ii) diffusing structures, such as scattering centers, leading to a diffusion of light passing the second zone. The first zone is curved to follow the converging line of sight of the wearer upon reading and contains a nasal segment, a temporal segment, and a central segment located between the nasal segment and the temporal segment The nasal segment and the temporal segment are shifted downwards with respect to the central segment.

Spectacle lens design, spectacle lens kit and method of manufacturing a spectacle lens

The invention is directed to an apparatus for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses. The apparatus includes a memory for providing a first image having a motif and a first polarization direction corresponding thereto and a second image having the same motif and a second polarization direction corresponding thereto, which is different from the first polarization direction. The apparatus also includes a display device for displaying the first image with light polarized in the first polarization direction and the second image with light polarized in the second polarization direction in a superposed representation, such that the motif of the first image and the motif of the second image coincide dimensionally identically. The invention is also directed to a method for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses.

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Essingen, Germany

Dieter Braunger