Characterizing an optical element
US12429710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2020 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Mar 18, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for characterizing optical elements of a lens element adapted for a person is presented, the lens element including: a holder including a refraction area having a refractive power based on a prescription for correcting an abnormal refraction of an eye of the person; and a plurality of optical elements configured so that at least one of slow down, retard or prevent a progress of the abnormal refraction of the eye of the person. A two-dimensional representation of the local optical power of the lens element is obtained using a fringe deflectometry method and the images used for the fringe deflectometry method consist of pixels smaller than or equal to 0.05 mm×0.05 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.