Patent · US Active

Scanning 3D imaging device with power control using multiple wavelengths

US10871569B2 · kind B2 · utility

0Cited by
3References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 8, 2018
Grant dateDec 22, 2020
Priority date—
Expiry dateJan 6, 2039

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B26/105
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Laser light pulses of at least two different wavelengths are reflected off a scanning mirror. A first time-of-flight distance measurement circuit receives reflected light pulses of a first wavelength and determines distances. A second time-of-flight distance measurement circuit receives reflected light pulses of a second wavelength and determines distances. The laser light pulses of different wavelengths may be interleaved in time to increase resolution. The laser light pulses of different wavelengths may also be used for detecting safety violations and/or power control.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.