Method for positioning a semi-finished spectacle lens
US7306334B2 · kind B2 · utility
2Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2006 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Mar 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/003
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a method for the parallax-free centering of an optical element, in particular a semifinished product of a future spectacle lens, on a holder of a centering or mounting device, the optical element is provided with engravings. The centering of the optical element is performed with the aid of the engravings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.