Pair of ophthalmic eyeglasses and a method of forming an engagement peripheral ridge on the edge face of a lens
US8083572B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 2007 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Jun 28, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C1/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pair of eyeglasses includes: a frame provided with at least one rim presenting an internal bezel; and a lens mounted in the frame, the lens presenting a front face, a rear face, and on its edge face, an engagement peripheral ridge presenting a rear flank, situated beside the rear face of the lens and a front flank situated beside the front face of the lens, the front and rear flanks being engaged in the internal bezel. The front flank of the engagement peripheral ridge presents continuity of at least first order with the remainder of the front face. The edge face of the lens presents a rear shoulder or foot, and in that the radial height of the engagement peripheral ridge considered between the peak of the peripheral ridge and the foot varies along the periphery of the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.