Process and machine for manufacturing an ophthalmic lens
US10137645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | May 1, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0016
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for manufacturing an ophthalmic lens (10) having at least one optical function, includes: a step (100) of additively manufacturing the ophthalmic lens (10) by depositing a plurality of preset volume elements of at least one material having a preset refractive index in order to form a target geometric envelope; a step of determining an actual geometric envelope at least once during the implementation of the additive manufacturing step (100); and a step of triggering a corrective action if there is in a zone a discrepancy larger than a preset threshold between the target geometric envelope and the actual geometric envelope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.