Silicone elastomer-silicone hydrogel hybrid contact lenses
US10139522B2 · kind B2 · utility
6Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2017 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Mar 29, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0061
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A silicone elastomer-silicone hydrogel hybrid contact lens comprises a silicone elastomer layer adhered to silicone hydrogel layer by a delamination-resistant bond. The silicone hydrogel layer has a percent swell of about −5% up to about 20%. The silicone elastomer layer may have one or more objects embedded within it or adhered to its surface. Such objects may include variable-focus lenses and/or electronic components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.