Flexible liquid crystal-containing lenses
US12001119B2 · kind B2 · utility
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4References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 23, 2022 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Sep 23, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrically-switchable flexible contact lens for conforming to an eye of a user is provided. The lens comprises a liquid crystal cell for changing a focal power of the contact lens, and the liquid crystal cell has a cell gap thickness between a first inner surface and a second inner surface, the liquid crystal cell comprising a diffractive optical element for correcting the vision of a user, wherein the diffractive optical element is arranged to maintain the cell gap thickness by providing support at one or more locations within the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.