Contact lens having a space
US10712588B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Jul 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates generally to contact lenses having a space within the lens. In various embodiments, a contact lens comprises a posterior component having an anterior surface and an anterior component having a posterior surface. The posterior component and the anterior component can comprise various combinations of gas permeable and gas impermeable optical materials. A contact lens also comprises a space between the posterior surface and the anterior surface, with the space configured to permit diffusion of a gas from a perimeter of the space through the space and across the anterior surface of the posterior component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.