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41.发明申请公开(公告)号：US20180231659A1
公开(公告)日：2018-08-16
申请号：US15296881
申请日：2016-10-18
Applicant: Luminar Technologies, Inc.
Inventor： Scott R. Campbell , Jason M. Eichenholz , Matthew D. Weed
CPC classification number: G01S17/102 , G01S7/4814 , G01S7/4815 , G01S7/4816 , G01S7/4876 , G01S7/497 , G01S17/08 , G01S17/88
Abstract: A lidar system with improved signal-to-noise ratio in the presence of solar background noise. The lidar system can comprise a light source to emit light toward a target. The light source can have an operating wavelength which lies within a band that delineates a relative maximum in atmospheric absorption. The lidar system can also include a detector to detect scattered light from the target and a processor to determine a characteristic of the target based on a characteristic of the scattered light received at the detector.
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公开(公告)号：US09897687B1
公开(公告)日：2018-02-20
申请号：US15479167
申请日：2017-04-04
Applicant: Luminar Technologies, Inc.
Inventor： Scott R. Campbell , Jason M. Eichenholz , Lane A. Martin , Matthew D. Weed
CPC classification number: G01S7/4817 , G01S7/4812 , G01S7/4816 , G01S17/10 , G01S17/42 , G01S17/89
Abstract: A lidar system may have a light source configured to emit pulses of light along a field of view of the light source and a scanner to scan the light source field of view in a scanning direction across a plurality of pixels located downrange from the lidar system. The scanner can direct a pulse of light, which is emitted by the light source along the light source field of view, toward a pixel and can scan a field of view of a first detector. The first detector field of view can be scanned in the scanning direction across the plurality of pixels and the scanning speed of the first detector field of view can be approximately equal to the scanning speed of the light source field of view. The first detector can detect a portion of the pulse of light scattered by a target located at least partially within the pixel.
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公开(公告)号：US09874635B1
公开(公告)日：2018-01-23
申请号：US15470718
申请日：2017-03-27
Applicant: Luminar Technologies, Inc.
Inventor： Jason M. Eichenholz , Austin K. Russell , Scott R. Campbell , Alain Villeneuve , Rodger W. Cleye , Joseph G. LaChapelle , Matthew D. Weed , Lane A. Martin
CPC classification number: G01S17/06 , G01S7/4804 , G01S7/4811 , G01S7/4814 , G01S7/4815 , G01S7/4816 , G01S7/4817 , G01S7/4818 , G01S7/483 , G01S7/484 , G01S7/4861 , G01S7/4863 , G01S7/4865 , G01S17/00 , G01S17/02 , G01S17/08 , G01S17/10 , G01S17/32 , G01S17/42 , G01S17/88 , G01S17/89 , G01S17/936 , H01S3/0007 , H01S3/0078 , H01S3/0085 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/08086 , H01S3/094003 , H01S3/094042 , H01S3/094076 , H01S3/0941 , H01S3/10023 , H01S3/1106 , H01S3/1608 , H01S3/2383 , H01S5/0057 , H01S5/0085 , H01S5/4012 , H01S5/4087 , H01S2301/02
Abstract: A lidar system having a light source to emit an output beam and an overlap mirror having a reflecting surface with an aperture through which the output beam passes. The lidar system may include mirrors driven by a galvanometer scanner, a resonant scanner, a microelectromechanical systems device, or a voice coil motor. The mirrors may direct the output beam toward a light source field of view (FOV) and may move the light source FOV to different locations within a field of regard. The mirrors may receive reflected portions of the output beam as an input beam and direct the input beam toward the reflecting surface of the overlap mirror. The lidar system may include a receiver to receive the input beam from the reflecting surface of the overlap mirror. The receiver may have a receiver FOV that moves synchronously with, and at least partially overlaps, the light source FOV.
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公开(公告)号：US09804264B2
公开(公告)日：2017-10-31
申请号：US15470730
申请日：2017-03-27
Applicant: Luminar Technologies, Inc.
Inventor： Alain Villeneuve , Jason M. Eichenholz
CPC classification number: G01S17/06 , G01S7/4804 , G01S7/4811 , G01S7/4814 , G01S7/4815 , G01S7/4816 , G01S7/4817 , G01S7/4818 , G01S7/483 , G01S7/484 , G01S7/4861 , G01S7/4863 , G01S7/4865 , G01S17/00 , G01S17/02 , G01S17/08 , G01S17/10 , G01S17/32 , G01S17/42 , G01S17/88 , G01S17/89 , G01S17/936 , H01S3/0007 , H01S3/0078 , H01S3/0085 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/08086 , H01S3/094003 , H01S3/094042 , H01S3/094076 , H01S3/0941 , H01S3/10023 , H01S3/1106 , H01S3/1608 , H01S3/2383 , H01S5/0057 , H01S5/0085 , H01S5/4012 , H01S5/4087 , H01S2301/02
Abstract: A lidar system which includes one or more light sources to produce one or more optical signals and a demultiplexer to separate the one or more optical signals into a plurality of sub-portions which may be distributed to a plurality of sensor heads. The sensor heads emit the sub-portions of the one or more optical signals into a plurality of fields of view and to detect reflected or scattered light from the fields of view. The lidar system also includes one or more optical amplifiers and one or more filters to reduce amplified spontaneous emission produced by the one or more optical amplifiers.
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公开(公告)号：US20170299721A1
公开(公告)日：2017-10-19
申请号：US15470735
申请日：2017-03-27
Applicant: Luminar Technologies, Inc.
Inventor： Jason M. Eichenholz , Austin K. Russell , Scott R. Campbell , Alain Villeneuve , Rodger W. Cleye , Joseph G. LaChapelle , Matthew D. Weed , Lane A. Martin
CPC classification number: G01S17/06 , G01S7/4804 , G01S7/4811 , G01S7/4814 , G01S7/4815 , G01S7/4816 , G01S7/4817 , G01S7/4818 , G01S7/483 , G01S7/484 , G01S7/4861 , G01S7/4863 , G01S7/4865 , G01S17/00 , G01S17/02 , G01S17/08 , G01S17/10 , G01S17/32 , G01S17/42 , G01S17/88 , G01S17/89 , G01S17/936 , H01S3/0007 , H01S3/0078 , H01S3/0085 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/08086 , H01S3/094003 , H01S3/094042 , H01S3/094076 , H01S3/0941 , H01S3/10023 , H01S3/1106 , H01S3/1608 , H01S3/2383 , H01S5/0057 , H01S5/0085 , H01S5/4012 , H01S5/4087 , H01S2301/02
Abstract: A lidar system with a light source to emit a pulse of light into a field of view and a receiver to detect a return pulse of light which is reflected or scattered by a target in the field of view. The receiver may include an avalanche photodiode to generate an electrical-current pulse corresponding to the return pulse and a transimpedance amplifier to produce a voltage pulse that corresponds to the electrical-current pulse. A voltage amplifier may amplify the voltage pulse and a comparator may produce an edge signal when the amplified voltage pulse exceeds a threshold. A time-to-digital converter may determine a time interval based on an emission time of the pulse of light and based on the edge signal. A processor may determine a distance to the target using the time interval.
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Patent Agency Ranking
公开(公告)号：US20170131387A1
公开(公告)日：2017-05-11
申请号：US15342595
申请日：2016-11-03
Applicant: Luminar Technologies, Inc.
Inventor： Scott R. Campbell , Jason M. Eichenholz , Lane A. Martin , Matthew D. Weed
CPC classification number: G01S7/4817 , G01S7/4812 , G01S7/4816 , G01S17/10 , G01S17/42 , G01S17/89
Abstract: A lidar system may have a light source configured to emit a pulse of light and a scanner that scans a field of view of the light source in a forward-scanning direction across a plurality of pixels located downrange from the lidar system. The scanner can direct the pulse of light toward the second pixel and scan a field of view of a first detector. The first-detector field of view can be offset from the light-source field of view in a direction opposite the forward-scanning direction. When the pulse is emitted, the first-detector field of view can at least partially overlap the first pixel and the light-source field of view can at least partially overlap the second pixel. The first detector can be configured to detect a portion of the pulse of light scattered by a target located at least partially within the second pixel.
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公开(公告)号：US12298408B2
公开(公告)日：2025-05-13
申请号：US18079385
申请日：2022-12-12
Applicant: Luminar Technologies, Inc.
Inventor： Dominik Nuss , Masood Taheri , Amey Sutavani , Scott Walter , Scott Ryvola , Mohamed Ahmad , Flavian Pegado , Shubham C. Khilari , Vahid R. Ramezani
IPC: G01C21/00 , G01S17/86 , G01S17/931
Abstract: A system and method are described for assessing accuracy of a virtual horizon generated by a vehicle-based lidar system as the vehicle traverses a route of travel. Travel route topology data is obtained by a vehicle vehicle-mounted global positioning system-assisted inertial measurement unit (GPS/IMU) data. A reference virtual horizon at points along the route of travel is obtained from the GPS/IMU data and is compared with the virtual horizon generated by the lidar system for the same points to assess the accuracy of the virtual horizon generated by the lidar system.
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公开(公告)号：US20250130330A1
公开(公告)日：2025-04-24
申请号：US18381982
申请日：2023-10-19
Applicant: Luminar Technologies, Inc.
Inventor： Alex M. Sincore
Abstract: A system comprises a seed laser diode, a semiconductor optical amplifier, and a driver. The seed laser diode is configured to produce a seed optical signal. The semiconductor optical amplifier is configured to, based on an injected amplifier current pulse, amplify the seed optical signal to produce an emitted optical signal. The driver is configured to provide to the seed laser diode or the semiconductor optical amplifier, a profiled compensation current associated with the injected amplifier current pulse to at least in part control a frequency chirp of the emitted optical signal.
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公开(公告)号：US12266146B2
公开(公告)日：2025-04-01
申请号：US18340573
申请日：2023-06-23
Applicant: Luminar Technologies, Inc.
Inventor： Pranav Maheshwari , Vahid R. Ramezani , Ismail El Houcheimi , Benjamin Englard
IPC: G08G1/04 , B60W40/072 , G05D1/00 , G06N20/00 , G06T7/11 , G06T11/20 , G06V10/426 , G06V10/50 , G06V10/764 , G06V10/77 , G06V20/56 , G08G1/01 , B60W60/00
Abstract: A system for detecting boundaries of lanes on a road is presented. The system includes an imaging system configured to produce a set of pixels associated with lane markings on a road. The system also includes one or more processors configured to detect boundaries of lanes on the road, including: receive, from the imaging system, the set of pixels associated with lane markings; partition the set of pixels into a plurality of groups, each of the plurality of groups associated with one or more control points; and generate a first spline that traverses the control points of the plurality of groups, the first spline describing a boundary of a lane on the road.
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公开(公告)号：US12222240B2
公开(公告)日：2025-02-11
申请号：US17529786
申请日：2021-11-18
Applicant: Luminar Technologies, Inc.
Inventor： Justin Robert Woodruff , Stephen L. Mielke , Roger S. Cannon
IPC: G01J1/04 , G01S7/4861
Abstract: An optical receiver including an ASIC, a light detector element, and a protective mask is disclosed. The light detector element is disposed on the ASIC and has a top surface oriented toward incident light, the top surface including a portion configured to receive the incident light and via which the incident light reaches an active area of the light detector element. The protective mask is placed over the ASIC so as to (i) cover, from the incident light, a portion of the ASIC, and (ii) provide an aperture that defines an optical path for the incident light through the protective mask to the portion of the top surface of the light detector element.
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