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：US10348051B1

公开(公告)日：2019-07-09

申请号：US15983828

申请日：2018-05-18

Applicant: Luminar Technologies, Inc.

Inventor： Lawrence Shah ,  Alain Villeneuve ,  Cheng Zhu ,  Laurance S. Lingvay

IPC: H01S3/094 ,  G02B6/024 ,  H01S3/067

Abstract: In one embodiment, a fiber-optic amplifier includes an optical gain fiber configured to amplify input light received from a seed laser. The optical gain fiber includes a first gain section configured to: receive the seed-laser input light and co-propagating pump light; and amplify the seed-laser input light as it propagates along the first gain section. The seed-laser input light and the co-propagating pump light propagate along the first gain section in a same direction. The optical gain fiber also includes a second gain section configured to: receive the amplified input light from the first gain section; receive counter-propagating pump light; and further amplify the amplified input light as it propagates along the second gain section. The amplified input light and the counter-propagating pump light propagate along the second gain section in opposite directions. The fiber-optic amplifier also includes a first pump laser diode and a second pump laser diode.

公开(公告)号：US20190064331A1

公开(公告)日：2019-02-28

申请号：US16170601

申请日：2018-10-25

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： Austin K. Russell ,  Jason M. Eichenholz ,  Laurance S. Lingvay

IPC: G01S7/497

Abstract: To dynamically control power in a lidar system, a controller identifies a triggering event and provides a control signal to a light source in the lidar system adjusting the power of light pulses provided by the light pulse. Triggering events may include exceeding a threshold speed, being within a threshold distance of a person or other object, an atmospheric condition, etc. In some scenarios, the power is adjusted to address eye-safety concerns.