Eyeglasses and method of viewing
US6174059A · kind A · utility
13Cited by
12References
9Claims
0Family size
Inventor
Key dates
| Filing date | May 14, 1999 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | May 14, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Eyeglasses are provided that allow the wearer a substantial upper vertical corrected field of vision and a substantial lower vertical uncorrected field of vision. The eyeglasses are particularly suitable for myopic persons having presbyopia enabling them to see objects at a distance through the lenses and objects that are relatively near through the lower vertical uncorrected field of vision, such as reading relatively fine print. A method is disclosed for providing a person a substantial upper vertical corrected field of vision and a substantial lower vertical uncorrected field of vision utilizing the inventive eyeglasses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.