Method of creating ophthalmic lenses using modulated energy
First Claim
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1. A method for making an ophthalmic lens comprisingProviding 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.
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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.
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Citations
17 Claims
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1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification