Method of selecting a semi-finished ophthalmic lens according to a given spectacle frame
US8540367B2 · kind B2 · utility
1Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2008 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Jan 14, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00951
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of selecting a semi-finished ophthalmic lens according to a given spectacle frame comprising the steps of: providing the spectacle frame front face base data providing a list of semi-finished ophthalmic lenses with a plurality of front face bases, and selecting from the list of semi-finished ophthalmic lenses the semi-finished ophthalmic lens whose front base is the closest from the front base of the spectacle frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.