Lens design and methods of manufacture thereof
US11681080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2019 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Feb 19, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2003/0093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed herein is a lens comprising a central portion that comprises a first polymer; and a peripheral portion that comprises a second polymer; where the peripheral portion surrounds the central portion; and where the peripheral portion has a skeletal density that is greater than its bulk density. Disclosed herein too is a method of manufacturing a lens comprising injecting into a mold a molten polymer to produce the lens; where the lens comprises a central portion; and a peripheral portion; where the peripheral portion surrounds the central portion; and where the peripheral portion has a skeletal density that is greater than its bulk density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.