Method of determining the trajectory of the groove to be machined in the edge of a lens to be fitted to a “metal supra” type spectacle frame
US6510362B1 · kind B1 · utility
2Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1999 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B9/144
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method is disclosed of mounting a lens in either rim or surround of a spectacle frame in which each rim or surround has a rigid part and a filament which extends from one end of the rigid part to the other. The curvature of the rigid part is systematically taken into account over the portion of the trajectory of the necessary groove that corresponds to the rigid part concerned of the spectacle frame. Applications include corresponding spectacle frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.