Laser surveying apparatus
US7454842B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2006 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | May 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4817
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A laser surveying apparatus includes: a laser light source configured to emit a laser light flux; a laser projector supported tiltably and configured to rotatably irradiate the laser light flux emitted from the laser light source; a mechanism tiltably supporting the laser projector; tilting arms extending in an X-direction and a Y-direction substantially perpendicular to the laser projector; a tilt driving section provided to at least one of the tilting arms configured to drive corresponding at least one of the tilting arms; detectors provided to each of the tilting arms and each configured to detect a movement amount of the corresponding one of the tilting arms, and an arithmetic section configured to calculate an inclination of the laser projector in the X-direction and the Y-direction from each of the movement amounts of the tilting arms detected by the corresponding detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.