Method for manufacturing ophthalmic lenses

Details Method for manufacturing ophthalmic lenses Method for manufacturing ophthalmic lenses

B - Operations, Transporting

29

D

B29D 11/00 (2006.01)

Patent

CA 2373342

The invention provides a method for manufacturing an ophthalmic lens. The method includes the step of applying one or more resin beads at the periphery of a mold assembly. The viscosity of the one or more resin beads is about 50,000 to about 100,000 centipoise. The invention provides a means to contain the resin that avoids the problems inherent in the use of mechanical components for containing the resin.

L'invention concerne des procédés de production de lentilles ophtalmiques par coulage de couches de résine sur des préformes optiques. La rétention de la résine dans l'ensemble moule est réalisée au moyen d'un grain de résine d'une viscosité élevée.

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