G - Physics – 02 – C
Patent
G - Physics
02
C
G02C 7/02 (2006.01)
Patent
CA 2612129
Designing spectacle lens blanks for a dual-surface progressive addition lens (PAL) comprising determining a prescription range from a first set of first designs to produce a second set of first designs satisfying the prescription range, determining a common surface using the second set of first designs, and using the common surface to produce a set of second designs satisfying the prescription range.
L'invention se rapporte à un procédé de fabrication de verres de lunettes semi-finis destinés à un verre à double foyer progressif (PAL). Ledit procédé consiste à définir un éventail de lentilles ophtalmiques à partir d'un premier ensemble de premiers modèles de manière à produire un deuxième ensemble de premiers modèles respectant l'éventail de lentilles ophtalmiques, à définir une surface commune utilisant le deuxième ensemble de premiers modèles, puis à utiliser la surface commune pour produire un ensemble de deuxièmes modèles respectant l'éventail de lentilles ophtalmiques.
Gerligand Pierre
Merritt Jim
Sastry Shyamy
Wang Jing
Wooley Benjamin
Essilor International (compagnie Generale D'optique)
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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