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US 8,240,849 B2Granted
Free form lens with refractive index variations
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsMichael F. Widman, John B. Enns, P. Mark Powell, Peter W. Sites
Life of this patent
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Abstract
This invention provides for an ophthalmic lens with at least one portion of the lens including multiple voxels of polymerized crosslinkable material. In addition, the present invention provides for apparatus for generating an ophthalmic lens with one or more areas of different refractive indexes and a surface with one or both of a raised area and a depressed area.
Claims19
An ophthalmic lens comprising:
- an optical zone portion comprising multiple voxels of polymerized crosslinkable material comprising a photoabsorptive component, wherein the optical zone portion comprises a first area comprising a first index of refraction and a second area comprising a second index of refraction;
- and
- a second portion comprising a layered volume of crosslinkable material polymerized beyond a gel point of the crosslinkable material.
Dependencies are inferred from the claim text.