Essilor International

Charlène Pousse

Haifeng Shan

William Trottier-lapointe

Michèle Thomas

Marie Dubail

Montserrat Burgos

Xiaohong Zhang

Jean-Philippe Dumont

Philip Chang

Jinhhao Ng

The invention concerns method and system for determining a lens of customized color, said method comprising the steps of determining a target colorimetric data set; providing access to a database comprising data representing colors; using a plurality of simulation modules to calculate, based on said data from the database, a plurality of simulated colorimetric data of the lens substrate combined with a mixture of dyes of determined dye(s) combination, composition and amount or with a multilayer stack as a function of determined layers composition and thicknesses; and, color matching the plurality of simulated colorimetric data with the target colorimetric data set so as to determine one or a plurality of combinations of said lens substrate with a determined mixture of dyes or with a determined multilayer stack.

Method and system for determining a lens of customized color

The present invention relates to optical lens for correcting color vision for individuals with color vision deficiency comprising a substrate and an absorbing dye which has at least a minimum light transmission factor at a wavelength ranging from 515 nm to 80 nm that is lower than or equal to 40% and quickly varying transmission around 500 nm and around 595 nm.

Optical lens for correcting color vision

Growing community of inventors

Charenton-le-Pont, France

Charlène Pousse