G - Physics – 02 – C
Patent
G - Physics
02
C
G02C 7/04 (2006.01) G02C 7/02 (2006.01)
Patent
CA 2490919
A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different than the lens-forming polymer. In the case of a cosmetic contact lens, the colorant may be applied in an annular ring pattern corresponding to an iris, so that the colorant pattern masks and changes the apparent color of the natural iris when the contact lens is worn.
L'invention a trait à une lentille dotée d'une partie colorée, constituée d'un polymère de formation de lentille et comportant une surface de lentille frontale et une surface de lentille dorsale. Un colorant est appliqué sur au moins l'une desdites surfaces, lesquelles peuvent être revêtues d'une couche de revêtement composée d'un matériau différent du polymère de formation de lentille. Dans le cas d'une lentille de contact cosmétique, le colorant peut être appliqué en un motif de forme annulaire correspondant à un iris, de façon que, lors du port de la lentille de contact, le motif formé par le colorant masque et modifie la couleur apparente de l'iris naturel.
Ammon Daniel M.
Friends Gary D.
Gartley Michael G.
Kunzler Jay F.
Mcgee Joseph A.
Bausch & Lomb Incorporated
Osler Hoskin & Harcourt Llp
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