Template for calibrating an ophthalmic lens grinding machine, and corresponding calibration method
US5806198A · kind A · utility
6Cited by
9References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Apr 24, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B47/225
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Designed to be fitted to an ophthalmic lens grinding machine to be calibrated instead of an ophthalmic lens, a calibration template is in the general form of a disk with a circular contour over at least part of its perimeter. Its contour forms two localized angular points circumscribed by a common circumference and having a relative angular offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.