Method of calibrating an ophthalmic processing device, machine programmed therefor, and computer program
US7970487B2 · kind B2 · utility
4Cited by
10References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/173
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to a method of calibrating drill depth of an ophthalmic processing device. A number of drill cycles are selected for drilling an expected number of holes in a lens blank. The selected number of drill cycles is performed. The drill depth of each consecutive drill cycle varies incrementally. An actual number of locations the drill bit contacted the lens blank during the drill cycles is compared to the expected number of holes. The drill depth is adjusted depending on the compared values. A method of calibrating drill hole size is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.