Method of grooving and drilling an ophthalmic lens blank, machine programmed therefor, and computer program
US7463944B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2006 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Aug 29, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28D1/143
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to a method of controlling an edger device, and a machine programmed to edge a lens blank. A lens blank and an edger are provided. The edger device is capable of forming a groove in a peripheral edge of the lens, and forming at least one hole extending from a first major surface of the lens to a second major surface. A CPU is provided, which is operably associated with the edger device for controlling operation of the edger device. Processing instructions are transmitted from the central processing unit to the edger device. The processing instructions comprise: forming a groove in a peripheral edge of a lens blank; and forming at least one hole in the lens blank extending from the first major surface to the second major surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.