Method of machining a face of an ophthalmic lens that is...

Details Method of machining a face of an ophthalmic lens that is... Method of machining a face of an ophthalmic lens that is...

B - Operations, Transporting

24

B

B24B 13/00 (2006.01)

Patent

CA 2601536

The invention relates to a method of machining a face (3) of an ophthalmic lens (1), comprising: a main machining step in which the position of a machining tool (8) is synchronised with the angular position of the ophthalmic lens (1) which is rotated around an axis of rotation (4) that is transverse to the face (3), in order to provide the face with a machined surface that is asymmetrical in relation to the axis of rotation (4) of the ophthalmic lens (1); and a complementary machining step in which a recess (22) is machined around the axis of rotation (4) of the lens (1).

Le procédé d'usinage d'une face (3) d'une lentille ophtalmique (1 ) comporte une étape principale d'usinage au cours de laquelle la position d'un outil d'usinage (8) est synchronisée avec la position angulaire de la lentille ophtalmique (1 ) entraînée en rotation autour d'un axe de rotation (4) transversal à ladite face (3) de sorte à usiner sur ladite face une surface asymétrique par rapport à l'axe de rotation (4) de la lentille ophtalmique (1 ) et comporte en outre une étape complémentaire d'usinage d'un évidement (22) autour de l'axe de rotation (4) de la lentille ophtalmique (1 ).

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