LIDAR Receiver Using a Waveguide and an Aperture

    公开(公告)号:US20190041498A1

    公开(公告)日:2019-02-07

    申请号:US15665796

    申请日:2017-08-01

    Applicant: Waymo LLC

    Abstract: The present disclosure relates to limitation of noise on light detectors using an aperture. One example implementation includes a system. The system includes a lens disposed relative to a scene. The lens focuses light from the scene. The system also includes an opaque material that defines an aperture. The system also includes a waveguide having a first side that receives light focused by the lens and transmitted through the aperture. The waveguide guides the received light toward a second side of the waveguide opposite to the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. The system also includes an array of light detectors that detects the reflected light propagating out of the third side.

    LIDAR receiver using a waveguide and an aperture

    公开(公告)号:US11686823B2

    公开(公告)日:2023-06-27

    申请号:US16895191

    申请日:2020-06-08

    Applicant: Waymo LLC

    Abstract: The present disclosure relates to limitation of noise on light detectors using an aperture. One example implementation includes a system. The system includes a lens disposed relative to a scene. The lens focuses light from the scene. The system also includes an opaque material that defines an aperture. The system also includes a waveguide having a first side that receives light focused by the lens and transmitted through the aperture. The waveguide guides the received light toward a second side of the waveguide opposite to the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. The system also includes an array of light detectors that detects the reflected light propagating out of the third side.

    Waveguide Diffusers for LIDARs
    4.
    发明申请

    公开(公告)号:US20230055071A1

    公开(公告)日:2023-02-23

    申请号:US17982078

    申请日:2022-11-07

    Applicant: Waymo LLC

    Abstract: One example system comprises a light source configured to emit light. The system also comprises a waveguide configured to guide the emitted light from a first end of the waveguide toward a second end of the waveguide. The waveguide has an output surface between the first end and the second end. The system also comprises a plurality of mirrors including a first mirror and a second mirror. The first mirror reflects a first portion of the light toward the output surface. The second mirror reflects a second portion of the light toward the output surface. The first portion propagates out of the output surface toward a scene as a first transmitted light beam. The second portion propagates out of the output surface toward the scene as a second transmitted light beam.

    LIDAR receiver using a waveguide and an aperture

    公开(公告)号:US10698088B2

    公开(公告)日:2020-06-30

    申请号:US15665796

    申请日:2017-08-01

    Applicant: Waymo LLC

    Abstract: The present disclosure relates to limitation of noise on light detectors using an aperture. One example implementation includes a system. The system includes a lens disposed relative to a scene. The lens focuses light from the scene. The system also includes an opaque material that defines an aperture. The system also includes a waveguide having a first side that receives light focused by the lens and transmitted through the aperture. The waveguide guides the received light toward a second side of the waveguide opposite to the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. The system also includes an array of light detectors that detects the reflected light propagating out of the third side.

    Waveguide Diffusers for LIDARs
    7.
    发明公开

    公开(公告)号:US20240036196A1

    公开(公告)日:2024-02-01

    申请号:US18487384

    申请日:2023-10-16

    Applicant: Waymo LLC

    CPC classification number: G01S17/02 G02B27/0955 G02B6/122 G02B2006/12104

    Abstract: One example system comprises a light source configured to emit light. The system also comprises a waveguide configured to guide the emitted light from a first end of the waveguide toward a second end of the waveguide. The waveguide has an output surface between the first end and the second end. The system also comprises a plurality of mirrors including a first mirror and a second mirror. The first mirror reflects a first portion of the light toward the output surface. The second mirror reflects a second portion of the light toward the output surface. The first portion propagates out of the output surface toward a scene as a first transmitted light beam. The second portion propagates out of the output surface toward the scene as a second transmitted light beam.

    Waveguide diffusers for LIDARs
    8.
    发明授权

    公开(公告)号:US11867808B2

    公开(公告)日:2024-01-09

    申请号:US17982078

    申请日:2022-11-07

    Applicant: Waymo LLC

    CPC classification number: G01S17/02 G02B6/122 G02B27/0955 G02B2006/12104

    Abstract: One example system comprises a light source configured to emit light. The system also comprises a waveguide configured to guide the emitted light from a first end of the waveguide toward a second end of the waveguide. The waveguide has an output surface between the first end and the second end. The system also comprises a plurality of mirrors including a first mirror and a second mirror. The first mirror reflects a first portion of the light toward the output surface. The second mirror reflects a second portion of the light toward the output surface. The first portion propagates out of the output surface toward a scene as a first transmitted light beam. The second portion propagates out of the output surface toward the scene as a second transmitted light beam.

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