Employing diffractive structure to reduce soft contact lens variation
US11360325B2 · kind B2 · utility
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4References
8Claims
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Key dates
| Filing date | Feb 11, 2019 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Jul 22, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ophthalmic lens may comprise a main body comprising an optic zone and a peripheral zone disposed adjacent the optic zone, wherein the optic zone comprises a refractive structure that exhibits a first optical power and a diffractive structure disposed within the optic zone, wherein the diffractive structure exhibits a second optical power, wherein the ophthalmic lens is associated with a first target SKU optical power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.