High magnification ophthalmic lens
US5309187A · kind A · utility
39Cited by
24References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Mar 18, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ophthalmic lens having two elements, a contact lens and an entry lens. The lens produces a magnified aerial image of the fundus of the eye, and can also be used for laser delivery to the fundus. The lens is particularly useful because it provides high magnification and detail of the fundus as well as excellent steroscopic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.