Process for marking an optical eyeglass
US12097719B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2017 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | May 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/021
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for marking an optical eyeglass (1) equipped with a surface coating (5) comprising the following steps: A step of detreating by means of a laser beam, so as to locally detreat an area of the optical eyeglass by removing the surface coating (5) until a lower layer (7) of the eyeglass (1) is reached, which layer is located under said coating (5) and made of a material that is different from the surface coating (5), thus forming at least one the detreated zone (6, 11), A step of depositing an ink (9) in the detreated zone (6, 11) in order to form at least one inked pattern (4), so that the ink (9) adheres to the lower layer (7) present at the bottom (10) of the detreated zone (6, 11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.