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US 8,454,862 B2Granted
Method of creating ophthalmic lenses using modulated energy
AssigneeNovartis AG
InventorsRafael Victor Andino, Angelika Maria Domschke, Joseph Michael Lindacher, Courtney Flem Morgan
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Abstract
This invention is related to lenses and the associated processes used to manufacture lenses. In particular, the present invention is related to a process for designing and creating bifocal, multifocal, and single vision ophthalmic lenses by modulating an energy source.
Claims17
A method for making an ophthalmic lens comprising
- Providing a fluid optical material;
- Providing a mold;
- Injecting said fluid optical material into said mold;
- Exposing said mold and fluid optical material to an energy source;
- and
- modulating said energy source to create a spatial distribution of refractive indices in the optical zone of the lens, wherein the fluid optical material comprises a prepolymer, a photoinitiator, wherein the prepolymer is a derivative of a polyvinyl alcohol and having a chemically attached refractive index enhancing modifier.
3 more elements
Dependencies are inferred from the claim text.