Laser surveying system
US9273960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Sep 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A laser surveying system includes a rotational light emitting unit to rotationally emit a laser beam, having a case and a beam emitter supported on the case with an optical axis of the laser beam rotatable relative to the case, and a light receiving unit to receive the laser beam from the rotational light emitting unit and perform surveying of a light-receiving position, wherein the laser surveying system is configured to determine whether or not the laser beam received by the light receiving unit has been properly emitted from the rotational light emitting unit on the basis of a rotational position of the optical axis of the laser beam relative to the case and an angle of site of the laser beam relative to a reference plane including the optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.