Device for determining the position and/or the transverse dimension of a drill hole in a presentation lens for rimless eyeglasses
US8320710B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2007 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Mar 31, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B13/0055
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The device includes: bearing element (55) for the lens (100); element (53) for acquiring a global image (90) of the drill hole (110) of the lens (100) in a lighting direction (D51, A52), or image acquisition direction (A53); element (54) for processing the image when the lens is carried by the carrier element (55). The processing element (54) designed for determining, from the global image of the drill hole (110) the position of center (C1) of the opening of the drill hole (110) that gives onto one of the faces (98) of the lens (100) and/or the transverse dimension of the opening of the drill hole (110) that corresponds to the desired transverse dimension (D).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.