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公开(公告)号：US20180156659A1
公开(公告)日：2018-06-07
申请号：US15368579
申请日：2016-12-03
Applicant: Waymo LLC
Inventor： Pierre-Yves DROZ , David HUTCHISON
CPC classification number: G01J1/0425 , G01J1/0411 , G01J1/0414 , G01J1/0437 , G01J2001/4466 , G01S7/4816 , G01S7/4818 , G01S17/89 , G02B6/08
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 aperture defined within an opaque material. 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 an array of light detectors that intercepts and detects light propagating out of the third side of the waveguide.
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公开(公告)号：US20200225410A1
公开(公告)日：2020-07-16
申请号：US16830680
申请日：2020-03-26
Applicant: Waymo LLC
Inventor： Pierre-Yves DROZ , David HUTCHISON
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 that focuses light from a scene toward a focal plane. The system also includes an aperture defined within an opaque material. The system also includes a plurality of waveguides. A given waveguide of the plurality has an input end that receives a portion of light transmitted through the aperture, and guides the received portion toward an output end of the given waveguide. A cross-sectional area of the guided portion at the output end is greater than a cross-sectional area of the received portion at the input end. The system also includes an array of light detectors that detects the guided light transmitted through the output end.
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公开(公告)号：US20230324523A1
公开(公告)日：2023-10-12
申请号：US18333074
申请日：2023-06-12
Applicant: Waymo LLC
Inventor： Pierre-Yves DROZ , David HUTCHISON
CPC classification number: G01S7/4863 , G02B19/0076 , G01S17/89 , G02B19/0014 , G02B27/0994 , G01S7/4818 , G01S7/4813 , G01S17/00 , G01S7/4816 , G02B5/003 , G02B5/005 , G02B6/08
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 that focuses light from a scene toward a focal plane. The system also includes an aperture defined within an opaque material. The system also includes a plurality of waveguides. A given waveguide of the plurality has an input end that receives a portion of light transmitted through the aperture, and guides the received portion toward an output end of the given waveguide. A cross-sectional area of the guided portion at the output end is greater than a cross-sectional area of the received portion at the input end. The system also includes an array of light detectors that detects the guided light transmitted through the output end.
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Patent Agency Ranking
公开(公告)号：US20180180739A1
公开(公告)日：2018-06-28
申请号：US15390454
申请日：2016-12-23
Applicant: Waymo LLC
Inventor： Pierre-Yves DROZ
CPC classification number: G01S17/58 , G01S7/487 , G01S17/026 , G01S17/10
Abstract: The present disclosure relates to systems and methods for determining a range and relative speed of objects in an environment. An example method includes causing a laser light source to emit a plurality of light pulses, both incoherent and coherent. The light pulses interact with an environment to provide reflected light pulses. The method includes providing a local oscillator signal based on a coherent light pulse. The method also includes receiving, at a detector, the reflected light pulses, and the local oscillator signal. The method additionally includes determining, based on at least one of the reflected light pulses, a presence of an object in the environment. The method yet further includes determining, based on another reflected light pulse and the local oscillator signal, a relative speed of the object with respect to the detector.
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公开(公告)号：US20220357451A1
公开(公告)日：2022-11-10
申请号：US17434942
申请日：2020-03-05
Applicant: WAYMO LLC
Inventor： Blaise GASSEND , Zachary MORRISS , Drew ULRICH , Pierre-Yves DROZ , Ryan DAVIS
IPC: G01S17/86 , G01S7/481 , G01S17/931 , G01S7/497
Abstract: A light detection and ranging (LIDAR) device includes a transmitter, a receiver, and a minor. The transmitter emits collimated transmit light toward the minor for reflection into an environment. The receiver includes a receive lens, an aperture, a holder, and a light sensor. The receive lens is configured to receive, via the minor, reflections of the collimated transmit light from the environment and focus the received light at a point within the aperture. The holder is configured to position the light sensor to receive light that diverges from the aperture. The holder and aperture can be moved together relative to the receive lens as an assembly. To align the receiver with the transmitter, a light source emits light through the aperture toward the receive lens, and the assembly is adjusted so that the light emitted by the transmitter and receiver overlap m an image obtained by a camera.
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公开(公告)号：US20180356500A1
公开(公告)日：2018-12-13
申请号：US16030514
申请日：2018-07-09
Applicant: Waymo LLC
Inventor： Benjamin INGRAM , Pierre-Yves DROZ , Luke WACHTER , Scott MCCLOSKEY , Blaise GASSEND , Gaetan PENNECOT
CPC classification number: G01S7/4815 , G01S7/484 , G01S17/10 , G01S17/936 , H01S3/11 , H01S3/2308 , H01S5/4025 , H01S5/4056
Abstract: The present disclosure relates to systems and methods that facilitate light detection and ranging operations. An example transmit block includes at least one substrate with a plurality of angled facets. The plurality of angled facets provides a corresponding plurality of elevation angles. A set of angle differences between adjacent elevation angles includes at least two different angle difference values. A plurality of light-emitter devices is configured to emit light into an environment along the plurality of elevation angles toward respective target locations so as to provide a desired resolution and/or a respective elevation angle. The present disclosure also relates to adjusting shot power and a shot schedule based on the desired resolution and/or a respective elevation angle.
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公开(公告)号：US20180175230A1
公开(公告)日：2018-06-21
申请号：US15383112
申请日：2016-12-19
Applicant: Waymo LLC
Inventor： Pierre-Yves DROZ , Caner ONAL
IPC: H01L31/107 , H01L27/146
CPC classification number: H01L31/107 , H01L27/14609 , H01L27/14614 , H01L27/14636 , H01L27/14643 , H01L27/14689
Abstract: The present disclosure relates to optical receiver systems. An example optical receiver system includes a first substrate with a plurality of photodetectors and a bias circuit. The bias circuit is electrically coupled to each photodetector of the plurality of photodetectors. The bias circuit is configured to provide a bias voltage to each photodetector. The optical receiver system also includes a plurality of capacitors. Each capacitor of the plurality of capacitors is electrically-coupled to a respective photodetector of the plurality of photodetectors. The optical receiver system also includes a second substrate with a read-out circuit having a plurality of channels. Each channel of the plurality of channels is capacitively-coupled to a respective photodetector via the respective capacitor.
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公开(公告)号：US20180156971A1
公开(公告)日：2018-06-07
申请号：US15366746
申请日：2016-12-01
Applicant: Waymo LLC
Inventor： Pierre-Yves DROZ , David HUTCHISON
CPC classification number: G02B6/08 , G01S7/4816 , G01S17/89 , G02B5/003 , G02B5/005 , G02B19/0014 , G02B19/0076 , G02B27/0994
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 that focuses light from a scene toward a focal plane. The system also includes an aperture defined within an opaque material. The system also includes a plurality of waveguides. A given waveguide of the plurality has an input end that receives a portion of light transmitted through the aperture, and guides the received portion toward an output end of the given waveguide. A cross-sectional area of the guided portion at the output end is greater than a cross-sectional area of the received portion at the input end. The system also includes an array of light detectors that detects the guided light transmitted through the output end.
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