Target method using indentifier element to obtain sphere radius
US8593648B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Mar 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/122
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided of obtaining the characteristics of a target by a device. The method includes providing the target having a target frame of reference, a retroreflector and a body. Providing a contact element rigidly fixed with respect to the body. A device is provided having a frame of reference and a light source, the device configured to measure a distance and two angles from the device to the retroreflector reference point. An identifier element located on the body. A workpiece surface is provided. The contact element contacts the workpiece surface. The retroreflector is illuminated with light from the light source and returns a reflected light. A distance and two angles are measured based at least in part on the reflected light. The first information is read with a first reader attached to the device. A three-dimensional coordinate of a point on the workpiece surface is calculated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.