Ophthalmic lenses including asymmetric gradient index optical elements
US12265283B1 · kind B1 · utility
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23Claims
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Key dates
| Filing date | Oct 23, 2023 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Oct 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ophthalmic lens (1), a film for use in an ophthalmic lens (1) and a method (500) of manufacturing an ophthalmic lens (1) are described. The lens (1) has an optical axis. The lens (1) comprises a layer (3) provided on a surface of a substrate (5). The layer (3) has a base refractive index and includes at least one gradient index optical element (7a, 7b) having an asymmetric refractive index profile. The at least one gradient index optical element (7a, 7b) focuses light from a distant point source on the optical axis to a point that is a first distance from the optical axis (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.