Method of manufacturing a contact lens
US5160463A · kind A · utility
109Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1991 |
| Grant date | Nov 3, 1992 |
| Priority date | — |
| Expiry date | Jul 18, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/002
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a contact lens with an iris simulating pattern by moulding comprising applying to the mould at least two differing designs so as to form an overall pattern. This overall pattern is transferred to the surface or surfaces of the contact lens during moulding and curing thereof, where the designs transferred interact with each other to substantially cover the iris and produce a coloured natural simulation of the iris of the eye when in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.