G - Physics – 02 – C
Patent
G - Physics
02
C
G02C 7/10 (2006.01)
Patent
CA 2564921
Ophthalmic devices are provided having a violet-light vertical cut-off filter abruptly absorbs light between the wave lengths of between approximately (400 nm) and (450 nm) such that a curve when plotted as percent transmission versus wavelength has the shape. In one embodiment the ophthalmic devices are made from acrylates and the light absorbing compound is an Eastman Yellow 035 MA dye.
L'invention concerne des dispositifs ophtalmiques présentant un filtre d'arrêt vertical de lumière ultraviolette lequel absorbe de façon nette la lumière entre les longueurs d'onde se trouvant entre approximativement 400 nm et 450 nm de manière qu'une courbe, lorsqu'elle est tracée pour représenter un pourcentage de transmission par rapport à une longueur d'onde, a la forme telle qu'elle est représentée dans la figure 2. Dans un mode de réalisation, les dispositifs ophtalmiques sont composés d'acrylates et le composé photoabsorbant est un colorant Eastman jaune 035 MA.
Fleisher Jean Carroll
King Gregory Allan
Lang Alan J.
Lowery Michael D.
Mainster Martin A.
Abbott Medical Optics Inc.
Advanced Medical Optics Inc.
Gowling Lafleur Henderson Llp
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