Contour reading device comprising a force sensor
US7500316B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2005 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Oct 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A contour reading method for an item such as an eyewire for spectacles, the method using an appliance including a support for holding the item, and a rotary platform which is rotatably mounted in relation to the support about a rotational axis and carries a reading sub-set provided with a sensor consisting of a finger and a rod, the finger having a distal end. The distal end is displaced along the contour and successive positions thereof are detected. The method is characterized in that the displacement step includes a measuring step wherein the effort exerted between the platform and the rod is measured parallel to the rod, and a control step wherein the distance between the finger and the platform is controlled according to the effort in such a way that the intensity of the effort remains lower than a pre-determined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.