Essilor International

Olivier Decorce

Didier Grand-Clement

Laurent Roussel

Jean-René Akbal

A system for monitoring the position of a blocking device on an ophthalmic lens () having at least one marking comprises: &#x2014;a mechanical structure adapted to cooperate with the blocking device; &#x2014;an image sensor () observing the ophthalmic lens (); &#x2014;a control unit () connected to the image sensor () and configured to produce an image having a point of reference with a determined position with respect to the mechanical structure and at least part of the ophthalmic lens () including said marking; and&#x2014;a user interface () adapted to display a blocking device positional compensation proposal for an automatic positional compensation or for a manual positional compensation based on the comparison to a predetermined threshold of a distance between the point of reference and the marking on the image. A corresponding method and a method for edging an ophthalmic lens are also proposed.

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Charenton-le-Pont, France

Olivier Decorce