Method for the production of a spectacle glass taking into account the optimum individual length of progression
US6945649B2 · kind B2 · utility
1Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2002 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Apr 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/027
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is described for determining the optical and individual progression length of a continuous vision lens on the basis of the measured cornea/bridge distance of a spectacle frame which is matched in advance.The invention is distinguished by the following steps:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.