Method of beveling an ophthalmic lens blank, machine programmed therefor, and computer program
US7643899B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2008 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Nov 17, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B49/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to a machine programmed to edge an ophthalmic lens blank. The machine includes an edger device for forming a bevel in a peripheral edge of the lens blank, a central processing unit operably associated with the edger device for controlling operation thereof, and a computer program stored on a medium in communication with the central processing unit. The computer program includes a first instruction set operably causing the edger device to form a bevel in a peripheral edge of a lens blank. A second instruction set operably causes the edger device to form a step in the peripheral edge intermediate an apex of the bevel and an interface between the peripheral edge and a major surface of the lens blank. A method of controlling an edger device for edging an ophthalmic lens blank and a computer program are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.