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    Lidar apparatus having wide-viewing angle
    1.
    发明授权
    Lidar apparatus having wide-viewing angle 有权

    公开(公告)号：US12210097B2

    公开(公告)日：2025-01-28

    申请号：US17192493

    申请日：2021-03-04

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Yongchul Cho ,  Jungwoo Kim ,  Tatsuhiro Otsuka

    IPC: G01S17/02 ,  G01S7/481 ,  G01S7/484 ,  G02B26/08

    Abstract: A light detection and ranging (LiDAR) apparatus with a wide viewing angle includes: a first rotatable mirror array including a first plurality of inclined mirrors arranged in a circumferential direction; a plurality of light sources configured to emit light toward the first rotatable mirror array; a second rotatable mirror array including a second plurality of inclined mirrors arranged in the circumferential direction, the second rotatable mirror array facing the first rotatable mirror array to reflect the light reflected by the first rotatable mirror array to an outside of the LiDAR apparatus; and a photodetector configured to detect the light reflected by the second rotatable mirror array, wherein the plurality of light sources may be provided in a plurality of sections into which an angle range of 180 degrees or more is divided in equal intervals in the circumferential direction.

    LiDAR device and method of operating the same
    2.
    发明授权
    LiDAR device and method of operating the same 有权

    公开(公告)号：US11867811B2

    公开(公告)日：2024-01-09

    申请号：US17458660

    申请日：2021-08-27

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Heesun Yoon ,  Jungwoo Kim ,  Tatsuhiro Otsuka ,  Inoh Hwang

    IPC: G01S17/00 ,  G01S17/10

    CPC classification number: G01S17/10

    Abstract: Provided are a LiDAR device and a method of operating the LiDAR device. The LiDAR device includes a light-emitting unit configured to emit modulated light onto an object, a light-receiving unit configured to receive the modulated light reflected by the object, a computation unit configured to calculate a distance to the object based on a reception signal of the modulated light provided by the light-receiving unit, a modulation unit configured to provide a modulation signal to the light-emitting unit to generate the modulated light, and a controller configured to control operations of at least one of the light-emitting unit, the light-receiving unit, the computation unit, and the modulation unit.

    LiDAR device and method of operating the same
    4.
    发明授权
    LiDAR device and method of operating the same 有权

    公开(公告)号：US11131772B2

    公开(公告)日：2021-09-28

    申请号：US15870005

    申请日：2018-01-12

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Heesun Yoon ,  Jungwoo Kim ,  Tatsuhiro Otsuka ,  Inoh Hwang

    IPC: G01S17/00 ,  G01S17/10

    Abstract: Provided are a LiDAR device and a method of operating the LiDAR device. The LiDAR device includes a light-emitting unit configured to emit modulated light onto an object, a light-receiving unit configured to receive the modulated light reflected by the object, a computation unit configured to calculate a distance to the object based on a reception signal of the modulated light provided by the light-receiving unit, a modulation unit configured to provide a modulation signal to the light-emitting unit to generate the modulated light, and a controller configured to control operations of at least one of the light-emitting unit, the light-receiving unit, the computation unit, and the modulation unit.

    Lidar system and method of operating the same
    5.
    发明授权
    Lidar system and method of operating the same 有权

    公开(公告)号：US11029398B2

    公开(公告)日：2021-06-08

    申请号：US15888537

    申请日：2018-02-05

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Inoh Hwang ,  Dongjae Shin ,  Jungwoo Kim ,  Tatsuhiro Otsuka ,  Heesun Yoon

    IPC: G01S7/487 ,  G01S7/481 ,  G01S17/06 ,  G01S17/42

    Abstract: Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.

    LiDAR system and method of operating the same
    7.
    发明授权
    LiDAR system and method of operating the same 有权

    公开(公告)号：US11614524B2

    公开(公告)日：2023-03-28

    申请号：US17313578

    申请日：2021-05-06

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Inoh Hwang ,  Dongjae Shin ,  Jungwoo Kim ,  Tatsuhiro Otsuka ,  Heesun Yoon

    IPC: G01S7/487 ,  G01S7/481 ,  G01S17/06 ,  G01S17/42

    Abstract: Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.

    LiDAR system and method of driving the same
    9.
    发明授权
    LiDAR system and method of driving the same 有权

    公开(公告)号：US11112493B2

    公开(公告)日：2021-09-07

    申请号：US16034033

    申请日：2018-07-12

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Heesun Yoon ,  Inoh Hwang ,  Tatsuhiro Otsuka

    IPC: G01S7/48 ,  G01S7/481 ,  G01S7/497 ,  G02F1/29

    Abstract: Provided is a light detection and ranging (LiDAR) system including: a light source; a beam steering device configured to steer light emitted from the light source toward an object; a light detector configured to detect light reflected from the object; and a processor. The beam steering device may include an optical phased array, including a plurality of channels, and a signal input unit which applies a plurality of driving signals to the plurality of channels. The processor is configured to perform an optimization operation including analyzing the light detected by the light detector, calculating at least one correction value, and controlling the plurality of driving signals according to the at least one correction value, in order to correct an error of the beam steering device.

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