Ophthalmic lens with reduced warpage
US10598824B2 · kind B2 · utility
0Cited by
4References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 20, 2014 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Nov 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Ophthalmic lens comprising an ophthalmic thermoplastic substrate and a light polarizing structure onto said substrate. The ophthalmic lens reduced warpage, in particular when submitted to mechanical, thermal and/or chemical treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.