Method for designing edge to edge photochromic soft contact lenses
US11209670B2 · kind B2 · utility
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62Claims
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Key dates
| Filing date | May 8, 2019 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosure is related to a new soft contact lens with edge to edge photochromic material where geometry of the optical region and the peripheral region of the lens are optimized to give the best cosmetic effect on eye. The vision correction component and the mechanical component of that soft contact lens are designed independently from each other. The design of each component, vision and mechanical, is achieved by the mean of using diffractive optics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.