Method of manufacturing contact lenses
US5528321A · kind A · utility
43Cited by
4References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | May 20, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for providing a contact lens for a patient. According to this method, an optical preform is selected, and a resting position of the optical preform on the patient's eye is determined. An optical feature is also located on a patient's eye. Then, a reference position is located on the surface of the optical preform coincident with the optical feature on the patients eye, when the optical preform is in the resting position. Finally, the optical modification is provided on the optical preform at a location based on the reference position on the optical preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.