公开(公告)号：US20200076152A1

公开(公告)日：2020-03-05

申请号：US16555304

申请日：2019-08-29

Applicant: Luminar Technologies, Inc.

Inventor： Jason M. Eichenholz ,  Laurance S. Lingvay ,  David Welford

IPC: H01S3/0941 ,  G01S7/481 ,  H01S3/16 ,  H01S3/11 ,  G01S7/484 ,  G01S17/10 ,  H01S3/113 ,  H01S3/094 ,  H01S3/091 ,  H01S5/068 ,  H01S5/125 ,  H01S5/024 ,  G01S17/88 ,  G01S17/32 ,  G02B26/10 ,  G02B26/08 ,  G02B26/12 ,  G02B5/20

Abstract: In one embodiment, a lidar system includes a light source configured to emit light at one or more wavelengths between 1200 nm and 1400 nm. The lidar system also includes a scanner configured to scan the emitted light across a field of regard of the lidar system and a receiver configured to detect a portion of the emitted light scattered by a target located a distance from the lidar system. The lidar system further includes a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time for the portion of the emitted light to travel from the lidar system to the target and back to the lidar system.

公开(公告)号：US10418776B2

公开(公告)日：2019-09-17

申请号：US15901838

申请日：2018-02-21

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： David Welford ,  Martin A. Jaspan ,  Jason M. Eichenholz ,  Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed

IPC: G01S17/88 ,  H01S3/11 ,  G01S17/42 ,  G01S7/484 ,  H01S3/06 ,  H01S3/113 ,  H01S3/094 ,  G01S17/10 ,  H01S3/30 ,  G01S7/481 ,  H01S3/102 ,  H01S3/0941 ,  H01S3/08 ,  H01S3/16 ,  H01S3/00

Abstract: A lidar system can include a solid-state laser to emit pulses of light. The solid-state laser can include a Q-switched laser having a gain medium and a Q-switch. The lidar system can also include a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system can also include a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for an emitted pulse of light to travel from the lidar system to the target and back to the lidar system.

公开(公告)号：US20180269646A1

公开(公告)日：2018-09-20

申请号：US15901838

申请日：2018-02-21

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： David Welford ,  Martin A. Jaspan ,  Jason M. Eichenholz ,  Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed

IPC: H01S3/11 ,  H01S3/0941 ,  H01S3/102 ,  G01S7/481 ,  H01S3/094 ,  G01S17/10 ,  G01S17/88 ,  H01S3/30

CPC classification number: H01S3/1115 ,  G01S7/4814 ,  G01S7/484 ,  G01S17/10 ,  G01S17/42 ,  G01S17/88 ,  H01S3/0092 ,  H01S3/061 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08 ,  H01S3/094076 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1022 ,  H01S3/113 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1673 ,  H01S3/30

Abstract: A lidar system can include a solid-state laser to emit pulses of light. The solid-state laser can include a Q-switched laser having a gain medium and a Q-switch. The lidar system can also include a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system can also include a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for an emitted pulse of light to travel from the lidar system to the target and back to the lidar system.

公开(公告)号：US09810786B1

公开(公告)日：2017-11-07

申请号：US15461380

申请日：2017-03-16

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： David Welford ,  Martin A. Jaspan ,  Jason M. Eichenholz ,  Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed

IPC: G01S3/08 ,  G01S17/10 ,  G01S7/484

CPC classification number: G01S17/10 ,  G01S7/4812 ,  G01S7/4814 ,  G01S7/4817 ,  G01S7/484 ,  G01S17/42 ,  G02F1/39 ,  H01S3/0092 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/09415 ,  H01S3/1086 ,  H01S3/113 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1673

Abstract: In one embodiment, a lidar system includes a pump laser configured to produce pulses of light at a pump wavelength. The lidar system further includes an optical parametric oscillator (OPO) with an OPO medium configured to: receive the pump pulses from the pump laser; convert at least part of the received pump pulses into pulses of light at a signal wavelength and pulses of light at an idler wavelength; and emit at least a portion of the signal pulses. The lidar system also includes a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system also includes a processor configured to determine the distance from the lidar system to the target.

公开(公告)号：US10340653B2

公开(公告)日：2019-07-02

申请号：US15901838

申请日：2018-02-21

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： David Welford ,  Martin A. Jaspan ,  Jason M. Eichenholz ,  Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed

IPC: G01S17/88 ,  H01S3/11 ,  G01S17/10 ,  H01S3/094 ,  H01S3/30 ,  G01S7/481 ,  H01S3/102 ,  H01S3/0941 ,  H01S3/06 ,  H01S3/113 ,  H01S3/08 ,  H01S3/16 ,  H01S3/00

Abstract: A lidar system can include a solid-state laser to emit pulses of light. The solid-state laser can include a Q-switched laser having a gain medium and a Q-switch. The lidar system can also include a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system can also include a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for an emitted pulse of light to travel from the lidar system to the target and back to the lidar system.

公开(公告)号：US09905992B1

公开(公告)日：2018-02-27

申请号：US15461394

申请日：2017-03-16

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： David Welford ,  Martin A. Jaspan ,  Jason M. Eichenholz ,  Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed

IPC: H01S3/11 ,  H01S3/0941 ,  G01S17/00 ,  G01S17/10

CPC classification number: H01S3/1115 ,  G01S7/4814 ,  G01S17/10 ,  G01S17/88 ,  H01S3/0092 ,  H01S3/061 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08 ,  H01S3/094076 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1022 ,  H01S3/113 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1673 ,  H01S3/30

Abstract: In one embodiment, a lidar system includes a self-Raman laser that includes a Raman-active gain medium and a Q-switch. The self-Raman laser is configured to: produce Q-switched pulses of light at a lasing wavelength of the self-Raman laser; Raman-shift, in the Raman-active gain medium, at least a portion of the Q-switched pulses to produce Raman-shifted pulses of light, where the Raman-shifted pulses have a Raman-shifted wavelength that is longer than the lasing wavelength; and emit at least a portion of the Raman-shifted pulses. The lidar system further includes a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system also includes a processor configured to determine the distance from the lidar system to the target.

公开(公告)号：US09810775B1

公开(公告)日：2017-11-07

申请号：US15461378

申请日：2017-03-16

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： David Welford ,  Martin A. Jaspan ,  Jason M. Eichenholz ,  Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed

IPC: G01C3/08 ,  G01S7/481 ,  G01S17/10 ,  H01S3/11 ,  H01S3/0941

CPC classification number: G01S7/4814 ,  G01S7/4817 ,  G01S17/10 ,  G01S17/42 ,  H01S3/0092 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/09415 ,  H01S3/113 ,  H01S3/1643

Abstract: In one embodiment, a lidar system includes a Q-switched laser configured to emit pulses of light, where the Q-switched laser includes a gain medium and a Q-switch. The lidar system further includes a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system also includes a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for an emitted pulse of light to travel from the lidar system to the target and back to the lidar system.