Device and method for non-contact scanning of contact lens and contact lens mold geometry
US7573974B2 · kind B2 · utility
0Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2006 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Nov 3, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to an apparatus and method for non-contact/non-destructive measurement of the geometry of molded ophthalmic lenses and the precision molds and tooling used in the manufacture of the ophthalmic lenses. In particular the present system uses micro computed tomography to measure the geometries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.