Contact Lens
US10175504B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2015 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Oct 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a contact lens with novel structure that is able to achieve both stability of the lens circumferential position in the worn state and improved wearing comfort at a high level. A first thick part and a second thick part are provided on a peripheral zone at both left and right sides such that each center-of-gravity position of both the first thick part and the second thick part is positioned below a horizontal diametrical line. A third thick part is provided on the peripheral zone below an optical zone. An upper thin part and a lower thin part are provided respectively at an upper peripheral zone positioned above the optical zone and a lower peripheral zone positioned below the optical zone and at an outer circumference side of the third thick part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.