Rodenstock Gmbh

Ilka Schwarz

Gregor Esser

Andrea Welk

Helmut Altheimer

Jochen Brosig

Martin Zimmermann

Katrin Nicke

Nadine Jung

Wolfgang Becken

Dietmar Uttenweiler

Werner Mueller

Winfried Nikolaus

Martin Zimmerman

Werner Müller

Leonhard Schmid

Robert Bichler

Hans Stetter

Kerstin Schmid

Norbet Awrath

Christina Butz

A method and device for calculating design parameters of a design of a progressive spectacle lens on the basis of a predetermined design polygon. The design parameters are calculated by specifying a point within the design polygon, in which the specified point defines the progressive spectacle lens design, and then determining a value of each design parameter at the specified point by an interpolation of at least part of the predetermined values at the corner points and, optionally, of at least part of the predetermined values of the design parameter at the at least one additional point.

Controlling designs using a polygonal design

The invention relates to a method for specifying or determining the spatial position of a distance reference point and/or a near reference point of a progressive spectacle lens for correcting defective vision of a spectacle wearer. Said method consists of the following steps: individual data of the spectacle wearer is obtained; the individual vertical and/or the horizontal position of the distance reference point and/or the near reference point is determined or calculated in accordance with the determined individual data of the spectacle wearer.

Method for determining far and near reference points

A method of producing a progressive spectacle glass by defining an ordering value for the average use value in the far reference point of the progressive spectacle glass, calculating the progressive spectacle glass while taking into account a calculation value of the average use value in the far reference point, the calculation value having a negative desired refraction deviation between 0.03 dpt and 0.2 dpt with respect to the ordering value in the far reference point, and producing the calculated progressive spectacle glass.

Error-tolerant progressive glass design

Growing community of inventors

Geretsried, Germany

Ilka Schwarz