Multifocal ophthalmic lenses and related methods
US11762220B2 · kind B2 · utility
3Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2021 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Oct 19, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multifocal ophthalmic lens wherein a first surface of the lens is shaped to form a surface power map and a second surface of the lens is shaped to form a second surface power map. The first surface power map and the second surface power map together form a lens power map. The first surface power map, the second surface power map, or the lens power map comprises a spiral. The spiral has a variation across at least a portion of the lens. Methods of making and using such lenses are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.