Optical lens coated with a patterned removable film and method for edging such a lens
US10436949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2014 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Nov 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical lens includes: (i) a temporary coating for protection against degradation at least partially covering a surface of the lens, the temporary protective coating including an outermost layer mechanically degradable through friction and/or contact, and (ii) a removable film having a first side and a second side, which adheres to the outermost layer of the temporary protective coating through its first side, the first side of the removable film including at least one surface portion, which, when applied to the outermost layer of the temporary protective coating, includes at least one adherent zone and at least one non-adherent zone distributed across the surface portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.