Method and apparatus for edging an optical lens
US5053971A · kind A · utility
42Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1989 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Aug 30, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A three axis, computer controlled apparatus for edging optical lenses maps the surfaces of a lens blank along a path defining the shape of the lens to be cut from the lens blank and from which mapping a computer controlled cutting algorithm directs the movement of the lens in the R, Z and theta axes direction. The apparatus provides rough cuts, finished cuts and automatic placement of bevels and grooves along the edge of the lens with minimal operator intervention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.