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    COHERENT PULSED LIDAR SYSTEM WITH SPECTRAL SIGNATURES
    1.
    发明申请
    COHERENT PULSED LIDAR SYSTEM WITH SPECTRAL SIGNATURES 有权

    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.

    COMBINING LIDAR AND CAMERA DATA
    2.
    发明申请
    COMBINING LIDAR AND CAMERA DATA 审中-公开

    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.

    Using Acoustic Signals to Modify Operation of a Lidar System
    4.
    发明申请
    Using Acoustic Signals to Modify Operation of a Lidar System 审中-公开

    公开(公告)号：US20180284246A1

    公开(公告)日：2018-10-04

    申请号：US15840993

    申请日：2017-12-13

    Applicant: Luminar Technologies, Inc.

    Inventor： Joseph G. LaChapelle

    IPC: G01S7/497 ,  G01S17/10 ,  G01S17/02 ,  G01S17/87 ,  G01S7/481

    Abstract: A system includes an acoustic source localization system configured to detect an acoustic signal and determine its location relative to the system. The system also includes a lidar system and a controller. The lidar system includes a light source to emit pulses of light, a scanner to scan a field of regard of the lidar system according to a scan pattern, and a detector to detect light from some of the light pulses scattered by remote targets to generate respective pixels in a point cloud representing objects within the field of regard. The controller configured to receive, from the acoustic source localization system, an indication of the determined location, identify a region of interest within the field of regard that includes the determined location of the source, and cause the lidar system to obtain more data within the region of interest relative to other regions within the field of regard.

    CROSS-TALK MITIGATION USING WAVELENGTH SWITCHING
    5.
    发明申请
    CROSS-TALK MITIGATION USING WAVELENGTH SWITCHING 审中-公开

    公开(公告)号：US20180284228A1

    公开(公告)日：2018-10-04

    申请号：US15983545

    申请日：2018-05-18

    Applicant: LUMINAR TECHNOLOGIES, INC.

    Inventor： Joseph G. LaChapelle

    IPC: G01S7/484 ,  G01S17/93 ,  G05D1/02 ,  G01S7/486 ,  G01S7/481 ,  G05D1/00

    Abstract: A lidar system includes a lighting module configured to (i) select a wavelength from among a plurality of wavelength values, for a particular time period, and (ii) emit light at the selected wavelength. The lighting module emits light at different wavelengths during at least two adjacent periods of time. The lidar system further includes a scanner configured to direct the pulse of light to illuminate a respective region within a field of regard of the lidar system and a receiver module configured to (i) receive a light signal and (ii) determine whether the received light signal includes the light emitted by the lighting module and scattered by a remote target, based at least in part on the wavelength selected by the lighting module.

    Coherent pulsed lidar system
    10.
    发明授权
    Coherent pulsed lidar system 有权

    公开(公告)号：US10802120B1

    公开(公告)日：2020-10-13

    申请号：US16794439

    申请日：2020-02-19

    Applicant: Luminar Technologies, Inc.

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

    IPC: G01B5/02 ,  G01S7/4865 ,  G01S7/481 ,  G01S7/484 ,  G01S17/10

    Abstract: In one embodiment, a lidar system includes a light source configured to emit (i) local-oscillator light and (ii) pulses of light, where each emitted pulse of light is coherent with a corresponding portion of the local-oscillator light. 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 comprising light from one of the emitted pulses of light that is scattered by a target located a distance from the lidar system. The local-oscillator light and the received pulse of light are coherently mixed together at the receiver. The receiver includes one or more detectors configured to produce one or more respective photocurrent signals corresponding to the coherent mixing of the local-oscillator light and the received pulse of light. The receiver also includes a pulse-detection circuit configured to determine a time-of-arrival for the received pulse of light.

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