公开(公告)号：US20240385292A1

公开(公告)日：2024-11-21

申请号：US18198729

申请日：2023-05-17

Applicant: Luminar Technologies, Inc.

Inventor： James Chester Sanders, III ,  Istvan Peter Burbank ,  Christopher Gary Sentelle

IPC: G01S7/48 ,  G01S7/481 ,  G01S17/10

Abstract: A system comprises a light source, a receiver, and a processor. The light source is configured to generate an emitted pulse of light. The receiver is configured to detect at least a portion of the emitted pulse of light scattered by an external target and provide a plurality of different measurement signals for the detected emitted pulse of light. The processor is configured to analyze the plurality of different measurement signals to identify the plurality of different measurement signals as corresponding to the same external target and combine the identified plurality of different measurement signals to determine a measurement for the external target.

公开(公告)号：US12140671B2

公开(公告)日：2024-11-12

申请号：US17065011

申请日：2020-10-07

Applicant: Luminar Technologies, Inc.

Inventor： Pranav Maheshwari ,  Meseret R. Gebre ,  Shubham C. Khilari ,  Vahid R. Ramezani

IPC: G01S17/58 ,  G01S7/48 ,  G01S7/481 ,  G01S13/58 ,  G01S17/89 ,  G06F18/23 ,  G06T7/13

Abstract: A scanning imaging sensor is configured to sense an environment through which a vehicle is moving. A method for determining one or velocities associated with objects in the environment includes generating features from the first set of scan lines and the second set of scan lines, the two sets corresponding to two instances in time. The method further includes generating a collection of candidate velocities based on feature locations and time differences, the features selected pairwise with one from the first set and another from the second set. Furthermore, the method includes analyzing the distribution of candidate velocities, for example, by identifying one or more modes from the collection of the candidate velocities.

公开(公告)号：US20240345248A1

公开(公告)日：2024-10-17

申请号：US18603652

申请日：2024-03-13

Applicant: Luminar Technologies, Inc.

Inventor： Jason M. Eichenholz ,  Scott R. Campbell ,  John E. McWhirter ,  Matthew D. Weed ,  Lane A. Martin

IPC: G01S17/08 ,  G01S7/481 ,  G01S17/42 ,  G01S17/87 ,  G01S17/931 ,  G02B5/08 ,  G02B5/09 ,  G02B5/18 ,  G02B5/22 ,  G02B7/182 ,  G02B26/10 ,  G02B26/12 ,  G02B27/09 ,  G02B27/10 ,  G02B27/30 ,  H01L25/16 ,  H01L27/146

CPC classification number: G01S17/08 ,  G01S7/4813 ,  G01S7/4817 ,  G01S17/42 ,  G01S17/931 ,  G02B5/09 ,  G02B7/1821 ,  G02B26/101 ,  G02B26/105 ,  G02B26/123 ,  G02B26/125 ,  G02B27/0955 ,  G02B27/0977 ,  G02B27/1086 ,  G02B27/30 ,  H01L25/167 ,  H01L27/14643 ,  H01L27/14647 ,  G01S17/87 ,  G02B5/0841 ,  G02B5/1857 ,  G02B5/22 ,  H01L27/14694

Abstract: A lidar system includes one or more light sources configured to generate a first beam of light and a second beam of light, a scanner configured to scan the first and second beams of light across a field of regard of the lidar system, and a receiver configured to detect the first beam of light and the second beam of light scattered by one or more remote targets. The scanner includes a rotatable polygon mirror that includes multiple reflective surfaces angularly offset from one another along a periphery of the polygon mirror, the reflective surfaces configured to reflect the first and second beams of light to produce a series of scan lines as the polygon mirror rotates. The scanner also includes a pivotable scan mirror configured to (i) reflect the first and second beams of light and (ii) pivot to distribute the scan lines across the field of regard.

公开(公告)号：US20240219568A1

公开(公告)日：2024-07-04

申请号：US18545826

申请日：2023-12-19

Applicant: Luminar Technologies, Inc.

Inventor： Eric James Dahlberg

IPC: G01S17/88 ,  G06N20/00

CPC classification number: G01S17/88 ,  G06N20/00

Abstract: A system includes a light emitter configured to emit light pulses. The system includes a controller configured to control positions of the emitted light pulses based on a selected reference profile. The controller includes an iterative learning controller configured to provide an error correction signal based on one or more iterative learning functions that correspond to the selected reference profile. The system includes a detector configured to provide one or more detection signals in response to a detection of a return pulse corresponding to at least one of the emitted light pulses.

公开(公告)号：US11927777B2

公开(公告)日：2024-03-12

申请号：US16943927

申请日：2020-07-30

Applicant: Luminar Technologies, Inc.

Inventor： Aditya Jain ,  Zoran Jandric ,  Dan Mohr ,  Kevin A. Gomez ,  Krishnan Subramanian

IPC: G02B5/00 ,  G01S7/481 ,  G02B1/00 ,  G02B6/122 ,  G02B27/00 ,  G02F1/29 ,  G02F1/313

CPC classification number: G02B5/008 ,  G01S7/481 ,  G01S7/4814 ,  G01S7/4817 ,  G02B1/002 ,  G02B1/007 ,  G02B6/1226 ,  G02B27/0087 ,  G02F1/292 ,  G02F1/3133 ,  G02F2202/30

Abstract: An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.

公开(公告)号：US20240069170A1

公开(公告)日：2024-02-29

申请号：US18333435

申请日：2023-06-12

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： Daniel Joseph KLEMME ,  Daniel Aaron MOHR

IPC: G01S7/481

CPC classification number: G01S7/4817 ,  G01S7/4814 ,  G01S7/4816

Abstract: A LiDAR system includes a first mirror positioned to receive the outgoing light beam from the laser; a second mirror positioned to receive a reflected light beam from the first mirror and to redirect the reflected light beam onto a target, and a detector that detects return light reflected off of the target. The second mirror of the optical periscope includes a cross-sectional area sized and shaped to substantially match a cross-sectional area of the reflected light beam to improve a quality of signal detected by the detector.

公开(公告)号：US20230358954A1

公开(公告)日：2023-11-09

申请号：US18356968

申请日：2023-07-21

Applicant: Luminar Technologies, Inc.

Inventor： Aditya JAIN ,  Li-Yuan CHIANG

IPC: G02B6/12

CPC classification number: G02B6/12011 ,  G02B2006/12061

Abstract: A waveguide grating antenna apparatus includes a substrate layer, a lower waveguide array layer upon the substrate, and an upper waveguide array layer positioned above the lower waveguide array layer. The lower waveguide array layer is composed of a plurality of first waveguides extending axially and a plurality of second waveguides extending axially and arranged in parallel and alternating in position with the plurality of first waveguides across the lower waveguide array layer. Each first waveguide is of a first maximum width. Each second waveguide is of a second maximum width narrower than the first maximum width and is spaced apart from each adjacent first waveguide. The upper waveguide array layer is composed of adjacent, separated elements extending axially along each first waveguide and each second waveguide.

公开(公告)号：US11521009B2

公开(公告)日：2022-12-06

申请号：US16559945

申请日：2019-09-04

Applicant: Luminar Technologies, Inc.

Inventor： Miguel Alexander Peake ,  Benjamin Englard

IPC: G06K9/00 ,  G06K9/62 ,  G06N3/00 ,  G08G1/0962 ,  G06N5/04 ,  G06F13/28 ,  G06T7/246 ,  G06T7/50 ,  G05D1/00 ,  G05D1/02 ,  G01S7/48 ,  G01C21/28 ,  G06V20/56 ,  G06N20/00 ,  G06F9/451 ,  G06T11/60

Abstract: Automated training dataset generators that generate feature training datasets for use in real-world autonomous driving applications based on virtual environments are disclosed herein. The feature training datasets may be associated with training a machine learning model to control real-world autonomous vehicles. In some embodiments, an occupancy grid generator is used to generate an occupancy grid indicative of an environment of an autonomous vehicle from an imaging scene that depicts the environment. The occupancy grid is used to control the vehicle as the vehicle moves through the environment. In further embodiments, a sensor parameter optimizer may determine parameter settings for use by real-world sensors in autonomous driving applications. The sensor parameter optimizer may determine, based on operation of the autonomous vehicle, an optimal parameter setting of the parameter setting where the optimal parameter setting may be applied to a real-world sensor associated with real-world autonomous driving applications.

公开(公告)号：US20210055391A1

公开(公告)日：2021-02-25

申请号：US16913093

申请日：2020-06-26

Applicant: Luminar Technologies, Inc.

Inventor： Joseph G. LaChapelle ,  Jason M. Eichenholz ,  Alex Michael Sincore

IPC: G01S7/4865 ,  G01S17/10 ,  G01S7/484 ,  G01S7/481

Abstract: In one embodiment, a lidar system includes a light source configured to emit local-oscillator light and pulses of light, where each emitted pulse of light is (i) coherent with a corresponding portion of the local-oscillator light and (ii) includes a spectral signature of one or more different spectral signatures. The lidar system also includes a receiver configured to detect the local-oscillator light and a received pulse of light, the received pulse of light including light from one of the emitted pulses of light scattered by a target located a distance from the lidar system, the one of the emitted pulses of light including a particular spectral signature of the one or more spectral signatures. The local-oscillator light and the received pulse of light are coherently mixed together at the receiver. The receiver includes one or more detectors and a frequency-detection circuit.

公开(公告)号：US20200300982A1

公开(公告)日：2020-09-24

申请号：US16893473

申请日：2020-06-05

Applicant: Luminar Technologies, Inc.

Inventor： Joseph G. LaChapelle ,  Jason M. Eichenholz

IPC: G01S7/481 ,  G01S17/89 ,  G06K9/00 ,  G06K9/62 ,  H04N5/232 ,  G01S17/42 ,  G01S17/86 ,  G01S17/931

Abstract: A system operating in a vehicle includes a lidar module, a camera, and a controller communicatively coupled to the camera and the lidar module. The lidar module includes: a light source configured to emit pulses of light, a scanner configured to direct the emitted pulses of light in accordance with a scan pattern to illuminate a field of regard of the lidar module, and a receiver configured to detect the emitted pulses of light scattered by one or more remote objects to capture a set of lidar pixels of a scan frame, in a sequence defined by the scan pattern. The camera has a field of view that at least partially overlaps the field of regard of the lidar module. The controller is configured to cause the camera to capture multiple images while the receiver of the lidar module captures the set of lidar pixels of the scan frame.