Determining method for an ophthalmic lens with optimized thickness
US11940673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2018 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | May 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of determining at least one parameter of an ophthalmic lens (40) including a complementary optical element (12) obtained by additive manufacturing and configured to provide at least a part of the optical function of the ophthalmic lens, the determining method including a step of providing two characterizing surfaces simulating two opposite surfaces of a complementary optical element (12), the distance between the two characterizing surfaces along a thickness axis (Z) defining the thickness of the complementary optical element; a step of optimizing the distance between the two characterizing surfaces (20) along the thickness axis (Z) so that the thickness of the complementary optical element reaches a thickness threshold while complying with the optical function of the ophthalmic lens (40); and a step of determining at least one parameter of the ophthalmic lens (40) on the basis of the optimized distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.