Tinted contact lenses having a depth effect
US7832860B2 · kind B2 · utility
2Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2007 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Jun 7, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00923
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides tinted contact lenses that enhance or change the color of the lens wearer's iris. The lenses of the invention impart a three-dimensional appearance to the pattern by the use of alternating clear and color layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.