Essilor International (compagnie Generale D'optique)

Essilor International

Gilles Massey

Gerhard Keller

Cedric Lemaire

Sidney Shaw White, Jr

Cédric Lemaire

Richard Bosmans

Montserrat Burgos

Aude Lapprand

Sebastien Pinault

Christian Massart

Muriel Godeau

Jean-Claude Dauguet

Catherine Roussel

Wilson Basilio Morales, Jr

Walter Charles Braley

Jean-Fran&ccedil;ois Dufresne

A method for cutting-out a multi-layer ophthalmic lens () following a desired contour (C), includes: a step of pre-blanking the ophthalmic lens () using a preliminary tool (), according to a preliminary contour (CC); a step of blanking the ophthalmic lens () using a blanking wheel (), following a blanking contour (CC); and a step of finishing the ophthalmic lens () using a finishing tool (). According to the invention, the preliminary contour (CC) is larger than the desired contour (C), and the blanking wheel () used has a granulometry of between 0.1 and 0.5 mm and is controlled in relation to the ophthalmic lens () so as to apply a radial force of between 0.1 and 5 N to the ophthalmic lens () during the blanking step.

Method for cutting-out a multi-layer ophthalmic lens

The method comprises: Application: to opthalmic lenses.

Method for determining the suitability of a transparent moulded polymer article for coloring without defects and resulting article

The invention concerns a method for obtaining an ophthalmic lens comprising a surface utility microstructure, in in particular antiglare. The method for obtaining an ophthalmic lens comprising a surface utility microstructure consists in a step for transferring the microstructure into the lens surface from a mould whereof the internal surface bears the microstructure and has a sight correcting geometric design, the microstructure being initially determined by an interferential process. The invention is useful for making ophthalmic lenses.

Method for obtaining an ophthalmic lens comprising a surface utility microstructure and resulting ophthalmic lenses

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Charenton-le-Pont, France

Gilles Massey