Segmented delta toric lens
US8328353B2 · kind B2 · utility
0Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2011 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Apr 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/048
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A segmented delta toric lens is described. The segmented delta toric lens includes an optical area, a circumference area surrounding the optical area and a segmented delta protrusion formed on the circumference area. The segmented delta protrusion is located apart from the optical area and the edge of the circumference area. The segmented delta toric lens can further include a mark to indicate a direction of the segmented delta toric lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.