Optic zone phase channels
First Claim
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1. A lens comprising:
- a carrier lens having an anterior surface and a posterior surface, said carrier lens being disposed along an optical axis and having an optic zone;
at least one phase zone plate disposed in said optic zone on one of said anterior and posterior surfaces substantially concentrically with said optical axis; and
at least one refractive region, separate from said at least one phase zone plate, disposed in said optic zone substantially concentrically with said optical axis.
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Abstract
An ophthalmic contact lens with a phase plate and a pure refractive portion within its optic zone. The invention embraces an ophthalmic contact lens of the Cohen lens design with a phase plate and a pure refractive portion within its optic zone.
166 Citations
12 Claims
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1. A lens comprising:
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a carrier lens having an anterior surface and a posterior surface, said carrier lens being disposed along an optical axis and having an optic zone; at least one phase zone plate disposed in said optic zone on one of said anterior and posterior surfaces substantially concentrically with said optical axis; and at least one refractive region, separate from said at least one phase zone plate, disposed in said optic zone substantially concentrically with said optical axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification