Machine for machining optical workpieces, in particular plastic spectacle lenses
US7480970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2007 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T82/2531
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine for machining optical workpieces, is equipped with a workpiece spindle, by which the workpiece can be rotatably driven about a workpiece rotation axis, and with a first fast-tool assembly, by which a turning cutter is movable in the direction of the workpiece and away from it. The workpiece spindle and the first fast-tool assembly are also movable relative to each other in a direction transverse to the workpiece rotation axis. Provided adjacent to and preferably in parallel configuration with the first fast-tool assembly is a second fast-tool assembly with a graver which has its end that faces the workpiece being essentially punctiform. The graver is movable by the second fast-tool assembly, in the direction of the workpiece and away from it, so that a marking of any geometry can be produced on the latter in the same span.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.