Laser scanner
US10018502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2015 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Aug 5, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/444
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A laser scanner includes: a light source; a scanning mirror that scans laser light emitted from the light source, toward a target object by oscillating about axis C; a photodetector that generates a photodetection signal upon receiving the laser light reflected from the target object; a controller that controls emission of the laser light by the light source, and that performs sampling on the photodetection signal; and a detector that detects an amount of displacement of the scanning mirror, and calculates a resonant frequency of the scanning mirror based on the amount of displacement detected. The controller determines a time at which the laser light is emitted from the light source and a time at which sampling is performed on the photodetection signal, based on the resonant frequency calculated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.