G - Physics – 02 – C
Patent
G - Physics
02
C
G02C 7/02 (2006.01)
Patent
CA 2758984
The invention relates to a method of determining an ophthalmic lens for a wearer's eye, the method comprising the following steps: measurement, on the wearer in binocular vision, of the three-dimensional coordinates of the centre of rotation (COR) of the wearer's eye; measurement (10) of at least one viewing direction in a natural posture; determination of the desired position of the ophthalmic lens; calculation of the characteristics of the ophthalmic lens using the measured coordinates and the determined position and the measured direction in the natural posture. Measuring the position of the centre of rotation of the eye in binocular vision ensures that the lens obtained is best adapted for the wearer.
L'invention se rapporte à un procédé de détermination d'une lentille ophtalmique pour un oeil d'un porteur, le procédé comportant les étapes de : - mesure, sur le porteur en vision binoculaire, des coordonnées tridimensionnelles du centre de rotation de l'oeil du porteur; - mesure (10) d'au moins une direction de regard en posture naturelle - détermination de la position souhaitée de la lentille ophtalmique; - calcul des caractéristiques de la lentille ophtalmique en utilisant les coordonnées mesurées et la position déterminée et la direction mesurée en posture naturelle. La mesure de la position du centre de rotation de l'oeil en vision binoculaire assure que la lentille obtenue est mieux adaptée au porteur.
Chauveau Jean-Pierre
de Rossi Helene
Dubois Frederic
Guilloux Cyril
Joncour Christian
Essilor International (compagnie Generale D'optique)
Robic
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