Range finder for measuring three-dimensional geometry of object and method thereof
US7078720B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Aug 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/89
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A range finder for measuring a three-dimensional geometry of an object includes a projector unit for projecting the pattern light onto the object, a first image capturing unit for capturing an image reflected from the object, a second image capturing unit for capturing an image reflected from the object, an identical principal point arrangement unit, and an imaging optical system. Preferably, the second image capturing unit is arranged so as to assume a principal point optically differing from that of the first image capturing unit, the identical principal point arrangement unit arranges the projector unit and the first image capturing unit at the position of an optically identical principal point, and the imaging optical system is shared between the projector unit and the first image capturing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.