Eyeglasses of the variable-lens type, and positioning member particularly useful therewith
US4289386A · kind A · utility
5Cited by
2References
4Claims
0Family size
Inventor
Key dates
| Filing date | Oct 23, 1979 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Oct 23, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C5/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pair of eyeglasses of the variable-lens type is described including a positioning member adjustable on the eyeglass frame and engageable with the base of the wearer's nose to stably support the eyeglass frame in either a normal position, or in an elevated position with respect to the wearer's eyes. In one described embodiment, the positioning member includes a saddle shaped element pivotably mounted to the eyeglass frame underlying the frame bridge; and in a second described embodiment, the positioning member includes a clip slidable receivable on the bridge of the eyeglass frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.