Six degree-of-freedom laser tracker that cooperates with a remote structured-light scanner
US9151830B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2012 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Feb 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16Z99/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Measuring three surface sets on an object surface with a measurement device and scanner, each surface set being 3D coordinates of a point on the object surface. The method includes: the device sending a first light beam to the first retroreflector and receiving a second light beam from the first retroreflector, the second light beam being a portion of the first light beam, a scanner processor and a device processor jointly configured to determine the surface sets; selecting the source light pattern and projecting it onto the object to produce the object light pattern; imaging the object light pattern onto a photosensitive array to obtain the image light pattern; obtaining the pixel digital values for the image light pattern; measuring the translational and orientational sets with the device; determining the surface sets corresponding to three non-collinear pattern elements; and saving the surface sets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.