Adhesive optical film to convert an eyeglass lens to a progressive lens
US10712591B2 · kind B2 · utility
1Cited by
27References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | May 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus and methods are described including generating a multi-focal lens and/or a progressive lens by adhering a corrective optical film to an optically-corrective single-focal lens, such as to change a focal length of the single-focal lens differently in different regions of the single-focal lens. Other applications are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.