Essilor International (compagnie Generale D'optique)

Essilor International

Virginie Martin

Thierry Baudart

A method of processing an unfinished optical lens member having a finished surface with a center reference point, and first and second surfaces, includes providing contour data defining the contour of the first surface in a finished cut state, the maximum distance between two points of the contour defined by C; determining, an optical reference point of the first surface with respect to the contour, the optical reference point corresponding to a user's line of sight in the finished cut state, the maximum distance between the optical reference point and the contour defined by M, providing a first surface dataset defining the second surface with respect to the optical reference point; and providing an unfinished optical lens member having a minimum distance Rbetween the center reference point and the boundary of the unfinished lens member such that 2 R&#x2267;Cand R&#x3c;M.

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Charenton-le-Pont, France

Virginie Martin