Data record for use in a method for producing a spectacle lens
US12204175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2021 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Jun 17, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A data record contains at least the following data values: spatial coordinates of a reference point at each eye of the wearer; a spatial direction vector for specifying a viewing direction of the wearer through the spectacle lens; and a spatial rim curve or edge curve. The data record can be used to produce a spectacle lens. A method and a computer program for generating the data record, and a method for producing the spectacle lens are also disclosed. It is possible to produce the spectacle lens after a single capture of a data record for adapting the spectacle lenses to the wearer of the pair of spectacles and to the spectacle frame selected by the wearer. A different spectacle lens as the spectacle lens originally selected can subsequently be used as the spectacle lens without having to record a further data record for the adaptation for the wearer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.