Diffractive/refractive spectacle and intraocular lens system for age-related macular degeneration
US5384606A · kind A · utility
70Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1992 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ophthalmic lens system (11), including an IOL (15) having a negative IOL lens portion (22) and a positive lens (13) adapted to be outside the eye and direct light toward the negative IOL lens portion. At least one of the surfaces of at least one of the lenses has a diffractive portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.