Sight-correcting optical component such as an intra-ocular implant or contact lens
US5019098A · kind A · utility
124Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | May 7, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical component such as an intra-ocular implant or contact lens for correcting sight has an aspherical surface in at least the central part of at least one side. The parameters of this surface are chosen so that for the optical system comprising the optical component and an associated eye model the object proximity curve is a specific shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.