Method for molding contact lenses

Details Method for molding contact lenses Method for molding contact lenses

B - Operations, Transporting

29

D

B29D 11/00 (2006.01) B29C 33/42 (2006.01)

Patent

CA 2172957

A method of molding a series of contact lenses having a range of optical powers using a matrix of posterior and anterior molds having varying surface characteristics such that the optical powers vary while maintaining constant fitting characteristics, and using a number of mold types which is less than the total number of contact lenses produced in the series.

Procédé de moulage d'une série de lentilles de contact dotées d'une gamme de propriétés optiques à l'aide d'une matrice de moules postérieurs et antérieurs pourvus de surfaces différentes, de telle manière que les propriétés optiques varient parallèlement au maintien de caractéristiques d'adaptation à l'oeil constantes, et à l'aide d'un certain nombre de types de moules qui est inférieur au nombre total de lentilles de contact produites dans la série.

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