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公开(公告)号：US20220120877A1
公开(公告)日：2022-04-21
申请号：US17565572
申请日：2021-12-30
Applicant: Waymo LLC
Inventor： Blaise Gassend , David Duff , Pierre-Yves Droz , Paul Karplus , Jason Watson , Michael Brickner , Alex Rivas
Abstract: The present disclosure relates to devices, lidar systems, and vehicles that include optical redirectors. An example lidar system includes a transmitter and a receiver. The transmitter includes at least one light-emitter device configured to transmit emission light into an environment of the lidar system. The receiver is configured to detect return light from the environment and includes a plurality of apertures, a plurality of photodetectors, and a plurality of optical redirectors. Each optical redirector is configured to optically couple a respective portion of return light from a respective aperture to at least one photodetector of the plurality of photodetectors. At least one of the optical redirectors includes an optically isolating coating.
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公开(公告)号：US20240118391A1
公开(公告)日：2024-04-11
申请号：US18540486
申请日：2023-12-14
Applicant: Waymo LLC
Inventor： Blaise Gassend , David Duff , Pierre-Yves Droz , Paul Karplus , Jason Watson , Michael Brickner , Alex Rivas
IPC: G01S7/481 , G01S17/931
CPC classification number: G01S7/4816 , G01S7/4814 , G01S17/931
Abstract: The present disclosure relates to devices, lidar systems, and vehicles that include optical redirectors. An example lidar system includes a transmitter and a receiver. The transmitter includes at least one light-emitter device configured to transmit emission light into an environment. The receiver is configured to detect return light from the environment and includes a plurality of apertures, a plurality of photodetectors, and a plurality of optical redirectors. Each optical redirector is configured to optically couple a respective portion of return light from a respective aperture to at least one photodetector of the plurality of photodetectors. Each optical redirector also has a rotational orientation relative to other optical redirectors such that the redirection paths of optical redirectors that correspond to adjacent apertures are not coplanar with one another.
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公开(公告)号：US20210199806A1
公开(公告)日：2021-07-01
申请号：US17134283
申请日：2020-12-26
Applicant: Waymo LLC
Inventor： Jason Watson , Blaise Gassend
IPC: G01S17/89 , G06K9/00 , G06T7/246 , G01S17/931
Abstract: The present disclosure relates to systems and methods for occlusion detection. An example system includes a primary reflective surface and a rotatable mirror configured to rotate about a rotational axis. The rotatable mirror includes a plurality of secondary reflective surfaces. The system also includes an optical element and a camera that is configured to capture at least one image of the optical element by way of the primary reflective surface and at least one secondary reflective surface of the rotatable mirror.
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公开(公告)号：US20210199770A1
公开(公告)日：2021-07-01
申请号：US17134277
申请日：2020-12-26
Applicant: Waymo LLC
Inventor： Blaise Gassend , David Duff , Pierre-Yves Droz , Paul Karplus , Jason Watson , Michael Brickner , Alex Rivas
IPC: G01S7/481 , G01S17/931 , G01S7/4914 , G01S7/493
Abstract: The present disclosure relates to devices, lidar systems, and vehicles that include optical redirectors. An example lidar system includes a transmitter and a receiver. The transmitter includes at least one light-emitter device configured to transmit emission light into an environment of the lidar system. The receiver is configured to detect return light from the environment and includes a plurality of apertures, a plurality of photodetectors, and a plurality of optical redirector elements. Each optical redirector element is configured to optically couple a respective portion of return light from a respective aperture to at least one photodetector of the plurality of photodetectors.
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公开(公告)号：US12181607B2
公开(公告)日：2024-12-31
申请号：US17134283
申请日：2020-12-26
Applicant: Waymo LLC
Inventor： Jason Watson , Blaise Gassend
IPC: G01C3/08 , G01S7/481 , G01S17/89 , G01S17/931 , G06T7/246 , G06V10/141 , G06V20/56
Abstract: The present disclosure relates to systems and methods for occlusion detection. An example system includes a primary reflective surface and a rotatable mirror configured to rotate about a rotational axis. The rotatable mirror includes a plurality of secondary reflective surfaces. The system also includes an optical element and a camera that is configured to capture at least one image of the optical element by way of the primary reflective surface and at least one secondary reflective surface of the rotatable mirror.
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Patent Agency Ranking
公开(公告)号：US12158544B2
公开(公告)日：2024-12-03
申请号：US17134282
申请日：2020-12-26
Applicant: Waymo LLC
Inventor： Blaise Gassend , Jason Watson
Abstract: The present disclosure relates to systems and methods that utilize an internal optical path in lidar applications. An example method includes causing at least one light-emitter device to emit a plurality of light pulses toward a rotatable mirror. The rotatable mirror (i) reflects at least a first light pulse of the plurality of light pulses into an external environment; and (ii) reflects at least a second light pulse of the plurality of light pulses into an internal optical path. The method also includes receiving, by a photodetector, (i) a reflected light pulse comprising a reflection of the first light pulse caused by an object in the external environment; and (ii) the second light pulse received via the internal optical path. The internal optical path is defined at least in part by one or more internal reflectors that reflect the second light pulse toward the rotatable mirror such that the rotatable mirror reflects the second light pulse toward the photodetector.
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7.发明授权公开(公告)号：US11947048B2
公开(公告)日：2024-04-02
申请号：US17061003
申请日：2020-10-01
Applicant: Waymo LLC
Inventor： David Schleuning , Pierre-Yves Droz , Jason Watson , James Dunphy
IPC: G01S7/487 , G01S7/481 , G01S7/4863 , G01S17/931
CPC classification number: G01S7/487 , G01S7/4818 , G01S7/4863 , G01S17/931
Abstract: Example embodiments relate to crosstalk reduction for light detection and ranging (lidar) devices using wavelength locking. An example embodiment includes a lidar device. The lidar device includes a first light emitter configured to emit a first light signal and a second light emitter configured to emit a second light signal. The lidar device also includes a first light guide and a second light guide. In addition, the lidar device includes a first light detector and a second light detector. Further, the lidar device includes a first wavelength-locking mechanism configured to use a portion of the first light signal to maintain a wavelength of the first light signal and a second wavelength-locking mechanism configured to use a portion of the second light signal to maintain a wavelength of the second light signal. The wavelengths of the first light signal and the second light signal are different.
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公开(公告)号：US20240094360A1
公开(公告)日：2024-03-21
申请号：US17947988
申请日：2022-09-19
Applicant: Waymo LLC
Inventor： Alexander Yukio Piggott , Jason Watson , Lin Liu , Blaise Laurent Patrick Gassend , Ralph Hamilton Shepard
IPC: G01S7/4914 , G01S7/481 , G01S7/4911 , G01S7/4912 , G01S7/499 , G01S17/58
CPC classification number: G01S7/4914 , G01S7/4817 , G01S7/4911 , G01S7/4917 , G01S7/499 , G01S17/58
Abstract: The subject matter of this specification can be implemented in, among other things, systems and methods of optical sensing for pixel multiplexing and polarized beam steering. Described, among other things, is a system that includes a light source configured to generate a light and one or more optical devices, integrated on a photonic integrated circuit, configured to impart modulation to the generated light and deliver the modulated light to an interface coupling device. The interface coupling device can include a plurality of interface couplers (ICs), each IC configured to scatter the modulated light in a direction that makes at least 5 degrees with an optical axis of lens configured to transmit the light scattered by each IC along a respective direction of a plurality of directions.
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公开(公告)号：US20250085402A1
公开(公告)日：2025-03-13
申请号：US18959920
申请日：2024-11-26
Applicant: Waymo LLC
Inventor： Jason Watson , Blaise Gassend
IPC: G01S7/481 , G01S17/89 , G01S17/931 , G06T7/246 , G06V10/141 , G06V20/56
Abstract: The present disclosure relates to systems and methods for occlusion detection. An example system includes a primary reflective surface and a rotatable mirror configured to rotate about a rotational axis. The rotatable mirror includes a plurality of secondary reflective surfaces. The system also includes an optical element and a camera that is configured to capture at least one image of the optical element by way of the primary reflective surface and at least one secondary reflective surface of the rotatable mirror.
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公开(公告)号：US12055659B2
公开(公告)日：2024-08-06
申请号：US17134277
申请日：2020-12-26
Applicant: Waymo LLC
Inventor： Blaise Gassend , David Duff , Pierre-Yves Droz , Paul Karplus , Jason Watson , Michael Brickner , Alex Rivas
IPC: G01S7/48 , G01S7/481 , G01S7/4914 , G01S7/493 , G01S17/931
CPC classification number: G01S7/4813 , G01S7/4817 , G01S7/4914 , G01S7/493 , G01S17/931
Abstract: The present disclosure relates to devices, lidar systems, and vehicles that include optical redirectors. An example lidar system includes a transmitter and a receiver. The transmitter includes at least one light-emitter device configured to transmit emission light into an environment of the lidar system. The receiver is configured to detect return light from the environment and includes a plurality of apertures, a plurality of photodetectors, and a plurality of optical redirector elements. Each optical redirector element is configured to optically couple a respective portion of return light from a respective aperture to at least one photodetector of the plurality of photodetectors.
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