Carl Zeiss Vision International Gmbh

Christoph Winter

Markus Welscher

Ralf-Roland Sauer

Ray Steven Spratt

Helmut Wietschorke

A computer-implemented method of determining a base curve value representing a base curve for a front surface of a spectacle lens is disclosed. The method includes receiving individual prescription data and determining the base curve value for the front surface of the spectacle lens based on the prescription data. In particular, the base curve value is calculated from the received prescription data based on a functional relationship between one or more values included in the prescription data and the base curve value.

Computer implemented method of determining a base curve for a spectacle lens and method of manufacturing a spectacle lens

A device and a method for establishing a target design are disclosed. A generator generates a graphical representation of a starting target design and displays it on a display. A user directly manipulates a graphical representation of the starting target design displayed on the display through the graphical user interface. The graphical representation of the manipulated starting target design is updated and displayed on the display.

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Hüttlingen, Germany

Christoph Winter