Method and machine for etching optical lenses
US9925681B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Jul 21, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28D1/143
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for machining an optical lens via a trimming machine, includes: —a step of locking the optical lens, —a step of acquiring shape characteristics of the optical faces of the optical lens, —a step of generating an instruction for trimming the optical lens, and —a step of trimming the optical lens along a desired contour. The method also includes the following steps: —a step of generating an instruction for etching the optical lens depending on the acquired shape characteristics, and —a step of etching the optical lens along a line located inside the desired contour, during which a pointed etching tool of the trimming machine is controlled according to the etching instruction in such a way that the point of same continually slides against the optical face in order to score same along the line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.