公开(公告)号：US20190154836A1

公开(公告)日：2019-05-23

申请号：US15965197

申请日：2018-04-27

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： Scott R. Campbell ,  Jason M. Eichenholz ,  Austin K. Russell ,  John G. Hughes

IPC: G01S17/93 ,  G02B27/09 ,  G01S17/08 ,  G01S17/89

Abstract: A lidar system comprises a light source configured to emit light, a scanner configured to direct the emitted light to scan a field of regard of the lidar system in accordance with a scan pattern, a receiver configured to detect the light scattered by one or more remote targets, and a controller configured to control motion of at least the second mirror to modify the scan pattern. The scanner includes a rotatable polygon mirror having a block having a first wall, a second wall, and reflective surfaces extending between the first and second walls, the reflective surfaces being angularly offset from one another along a periphery of the block. The scanner also includes a polygon mirror axle extending into the block through at least one of the first and second walls, about which the block rotates, and a second mirror pivotable along an axis orthogonal to the polygon mirror axle.

公开(公告)号：US10324170B1

公开(公告)日：2019-06-18

申请号：US15974153

申请日：2018-05-08

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： John P. Engberg, Jr. ,  Christopher A. Engberg ,  John G. Hughes ,  Sean P. Hughes

IPC: G01C3/08 ,  G01S7/481 ,  G01S7/486 ,  G02B26/10 ,  G02B26/08 ,  G01S7/484

Abstract: A lidar system includes a light source configured to produce a first and second beams of light, receivers to configured to detect light from the first and second beams of light and scattered by one or more remote targets, and a scanner including a first scan mirror configured to pivot along a first-mirror pivot axis to scan the first beam of light along a first direction, a second scan mirror configured to pivot along a second-mirror pivot axis to scan the second beam of light along the first direction, and a polygon with multiple reflective surfaces configured to rotate about a polygon-mirror rotation axis to scan the first and second beams of light along a second direction.

公开(公告)号：US10578720B2

公开(公告)日：2020-03-03

申请号：US15974319

申请日：2018-05-08

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： John G. Hughes ,  Sean P. Hughes

IPC: G01S7/48 ,  G01S7/481 ,  G01S7/4863 ,  G02B26/10 ,  G02B26/08 ,  G01S7/484 ,  G02B5/09 ,  G02B26/12 ,  G01S13/931

Abstract: A lidar system includes a light source configured to produce a beam of light, a scanner configured to scan a field of regard of the lidar system, and a receiver configured to detect light from the beam of light scattered by a remote target. The scanner includes a polygon mirror having a block with a first wall, a second wall, and several reflective surfaces angularly offset from one another along a periphery of the block, the polygon mirror configured to rotate about a scan-mirror rotation axis to scan the beam of light across the field of regard. The scanner further includes a bracket adjacent to the polygon mirror, where at least one of the polygon mirror or the bracket includes a noise-reducing feature configured to reduce acoustic noise produced when pressure waves generated by the polygon mirror during rotation are incident on one or more components of the scanner.

公开(公告)号：US10571567B2

公开(公告)日：2020-02-25

申请号：US15965197

申请日：2018-04-27

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： Scott R. Campbell ,  Jason M. Eichenholz ,  Austin K. Russell ,  John G. Hughes

IPC: G01S17/08 ,  G01S7/481 ,  G01S17/93 ,  G02B26/10 ,  G02B26/12 ,  H01L27/146 ,  G01S17/42 ,  G02B5/09 ,  G02B7/182 ,  G01S17/89 ,  G02B27/09 ,  G02B27/10 ,  G02B27/30 ,  H01L25/16 ,  G01S17/87 ,  G02B5/08 ,  G02B5/18 ,  G02B5/22

Abstract: A lidar system comprises a light source configured to emit light, a scanner configured to direct the emitted light to scan a field of regard of the lidar system in accordance with a scan pattern, a receiver configured to detect the light scattered by one or more remote targets, and a controller configured to control motion of at least the second mirror to modify the scan pattern. The scanner includes a rotatable polygon mirror having a block having a first wall, a second wall, and reflective surfaces extending between the first and second walls, the reflective surfaces being angularly offset from one another along a periphery of the block. The scanner also includes a polygon mirror axle extending into the block through at least one of the first and second walls, about which the block rotates, and a second mirror pivotable along an axis orthogonal to the polygon mirror axle.

公开(公告)号：US20190310351A1

公开(公告)日：2019-10-10

申请号：US15974319

申请日：2018-05-08

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： John G. Hughes ,  Sean P. Hughes

IPC: G01S7/481 ,  G02B26/08 ,  G02B26/10 ,  G02B5/09

Abstract: A lidar system includes a light source configured to produce a beam of light, a scanner configured to scan a field of regard of the lidar system, and a receiver configured to detect light from the beam of light scattered by a remote target. The scanner includes a polygon mirror having a block with a first wall, a second wall, and several reflective surfaces angularly offset from one another along a periphery of the block, the polygon mirror configured to rotate about a scan-mirror rotation axis to scan the beam of light across the field of regard. The scanner further includes a bracket adjacent to the polygon mirror, where at least one of the polygon mirror or the bracket includes a noise-reducing feature configured to reduce acoustic noise produced when pressure waves generated by the polygon mirror during rotation are incident on one or more components of the scanner.