US 11,686,821 B2
Scan patterns for lidar systems
Scott R. Campbell, Sanford, FL (US); Rodger W. Cleye, Aliso Viejo, CA (US); Jason M. Eichenholz, Orlando, FL (US); Lane A. Martin, Vancouver, WA (US); and Matthew D. Weed, Orlando, FL (US)
Assigned to Luminar, LLC, Orlando, FL (US)
Filed by Luminar, LLC, Orlando, FL (US)
Filed on Apr. 22, 2019, as Appl. No. 16/390,923.
Application 16/390,923 is a continuation of application No. 15/871,687, filed on Jan. 15, 2018, granted, now 10,267,898.
Application 15/871,687 is a continuation of application No. 15/466,702, filed on Mar. 22, 2017, granted, now 9,869,754, issued on Jan. 16, 2018.
Prior Publication US 2019/0250254 A1, Aug. 15, 2019
Int. Cl. G01C 3/08 (2006.01); G01S 7/481 (2006.01); G01S 17/10 (2020.01); G01S 17/42 (2006.01); G01S 17/87 (2020.01); G01S 7/487 (2006.01); G01S 17/931 (2020.01); G01S 7/4865 (2020.01)
CPC G01S 7/4815 (2013.01) [G01S 7/487 (2013.01); G01S 7/4817 (2013.01); G01S 7/4865 (2013.01); G01S 17/10 (2013.01); G01S 17/42 (2013.01); G01S 17/87 (2013.01); G01S 17/931 (2020.01)] 13 Claims
OG exemplary drawing
 
1. A system comprising:
a light source configured to produce a first set of pulses of light having a first wavelength and a second set of pulses of light having a second wavelength different from the first wavelength;
a first lidar sensor comprising:
a first scanner configured to scan the first set of pulses of light along a first scan pattern; and
a first receiver configured to detect scattered light from the first set of pulses of light, wherein the first receiver comprises a first optical filter configured to transmit light at the first wavelength and block light at the second wavelength;
a second lidar sensor comprising:
a second scanner configured to scan the second set of pulses of light along a second scan pattern, wherein the first scan pattern and the second scan pattern are at least partially overlapped in an overlap region; and
a second receiver configured to detect scattered light from the second set of pulses of light, wherein the second receiver comprises a second optical filter configured to transmit light at the second wavelength and block light at the first wavelength;
an enclosure, wherein the first lidar sensor and the second lidar sensor are contained within the enclosure, wherein the enclosure comprises a window configured to transmit the first set of pulses of light and the second set of pulses of light, wherein the window comprises a surface with a dielectric coating that is anti-reflecting at the first and second wavelengths; and
wherein the first scanner and the second scanner include one or more of a galvanometer scanner, a resonant scanner, a microelectromechanical systems (MEMS) device, a polygonal scanner, or a voice coil motor.