Multilayer contact lens
US11609440B2 · kind B2 · utility
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1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2020 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Mar 31, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Multilayer contact lenses and methods of making the same are described. A contact lens (100) includes a lens assembly (103). The lens assembly (103) includes a plurality of flexible lens layers. A first layer (101) has a uniform or smooth anterior surface (106), and a second layer (102) has a structured posterior surface that includes one or more recesses (105). The anterior surface (106) of the first layer (101) and the structured posterior surface of the second layer (102) define a first cavity (107) for containing one or more components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.