Combination of spectacle lenses and frames therefor
US5764331A · kind A · utility
1Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Jul 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C1/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosure is of a lens having a bevelled rim and a frame having a channel for receiving the lens and carrying a bevel which is complementary to the bevel of the lens. The lens also carries on its rim a plurality of wedge-like positioning members which grip the channel of the frame and essentially lock the lens in place so that it cannot rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.