×

Diffractive optical element in a lidar system to correct for backscan

  • US 10,061,019 B1
  • Filed: 10/10/2017
  • Issued: 08/28/2018
  • Est. Priority Date: 03/28/2017
  • Status: Active Grant
First Claim
Patent Images

1. A lidar system comprising:

  • one or more light sources configured to transmit light pulses comprising a plurality of first light pulses having a first wavelength and a plurality of second light pulses having a second wavelength;

    a diffractive optical element that deflects the first and second light pulses at different angles according to the respective first and second wavelengths;

    a scanner configured to scan a field of view of the one or more light sources in a forward-scanning direction during a first time interval and a reverse-scanning direction during a second time interval; and

    a detector configured to detect;

    scattered light from at least a portion of the first light pulses when the scanner is scanning the field of view in the forward-scanning direction during the first time interval; and

    scattered light from at least a portion of the second light pulses when the scanner is scanning the field of view in the reverse-scanning direction during the second time interval.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×