Eye lens having a toric refractive surface profile and a surface structure that is stepped in a radial direction
US9925041B2 · kind B2 · utility
13Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2016 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | May 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/22
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An eye lens including an optical part, which has a first optical side and an opposite second optical side with respect to a direction of an optical principal axis (A) of the eye lens, wherein a toric refractive surface profile is formed on at least one of the two sides, wherein the eye lens has a surface structure that is stepped in a radial direction of the optical part in addition to the toric refractive surface profile, and the stepped surface structure is formed on at least one side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.