-
公开(公告)号：US20190250254A1
公开(公告)日：2019-08-15
申请号：US16390923
申请日：2019-04-22
Applicant: Luminar Technologies, Inc.
Inventor： Scott R. Campbell , Rodger W. Cleye , Jason M. Eichenholz , Lane A. Martin , Matthew D. Weed
CPC classification number: G01S7/4815 , G01S7/4817 , G01S7/4865 , G01S17/10 , G01S17/42 , G01S17/87
Abstract: A system includes a first lidar sensor and a second lidar sensor, where each lidar sensor includes a scanner configured to direct a set of pulses of light along a scan pattern and a receiver configured to detect scattered light from the set of light pulses. The scan patterns are at least partially overlapped in an overlap region. The system further includes an enclosure, where the first lidar sensor and the second lidar sensor are contained within the enclosure. Each scanner includes one or more mirrors, and each mirror is driven by a scan mechanism.
-
公开(公告)号：US20190154802A1
公开(公告)日：2019-05-23
申请号：US15965288
申请日：2018-04-27
Applicant: LUMINAR TECHNOLOGIES, INC.
Inventor： Scott R. Campbell , Jason M. Eichenholz , Matthew D. Weed , Lane A. Martin
Abstract: A lidar system includes one or more light sources configured to generate a first and second beams of light, a scanner configured to synchronously scan a field of regard of the lidar system using the two beams, and a receiver configured to detect light of the two beams scattered by one or more remote targets. The scanner includes a rotatable polygon mirror having a block having a first wall, a second wall, and reflective surfaces extending between the first and second walls, the reflective surfaces being angularly offset from one another along a periphery of the block; a polygon mirror axle extending into the block, about which the block rotates; optical elements configured to direct the first and second beams of light respectively to two adjacent reflective surfaces of the rotatable polygon mirror; and a second mirror pivotable along an axis orthogonal to the polygon mirror axle.
-
公开(公告)号：US10254388B2
公开(公告)日：2019-04-09
申请号：US15909012
申请日：2018-03-01
Applicant: LUMINAR TECHNOLOGIES, INC.
Inventor： Joseph G. LaChapelle , Matthew D. Weed , Scott R. Campbell , Jason M. Eichenholz , Austin K. Russell , Lane A. Martin
IPC: G01C3/08 , G01S7/484 , G01W1/02 , G01S17/10 , G01S17/42 , G01S7/00 , G01S7/497 , G01S17/95 , G01S17/93 , G01S7/486
Abstract: To detect an atmospheric condition at the current location of a lidar system, a receiver in the lidar system detects a return light pulse scattered by a target and analyzes the characteristics of the return light pulse. The characteristics of the return light pulse include a rise time, a fall time, a duration, a peak power, an amount of energy, etc. When the rise time, fall time, and/or duration exceed respective thresholds, the lidar system detects the atmospheric condition such as fog, sleet, snow, rain, dust, smog, exhaust, or insects. In response to detecting the atmospheric condition, the lidar system adjusts the characteristics of subsequent pulses to compensate for attenuation or distortion of return light pulses due to the atmospheric condition. For example, the lidar system adjusts the peak power, pulse energy, pulse duration, inter-pulse-train spacing, number of pulses, or any other suitable characteristic.
-
公开(公告)号：US20180364356A1
公开(公告)日：2018-12-20
申请号：US15364085
申请日：2016-11-29
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
Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light and a scanner configured to scan at least a portion of the emitted pulses of light across a field of regard. The lidar system also includes a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system.
-
公开(公告)号：US20180284241A1
公开(公告)日：2018-10-04
申请号：US15710744
申请日：2017-09-20
Applicant: LUMINAR TECHNOLOGIES, INC.
Inventor： Scott R. Campbell , Lane A. Martin , Matthew D. Weed , Jason M. Eichenholz
Abstract: A lidar system includes a light source, a scanner, and a receiver and is configured to detect remote targets located up to RMAX meters away. The receiver includes a detector with a field of view larger than the light-source field of view. The scanner causes the detector field of view to move relative to the instantaneous light-source field of view along the scan direction, so that (i) when a pulse of light is emitted, the instantaneous light-source field of view is approximately centered within the detector field of view, and (ii) when a scattered pulse of light returns from a target located RMAX meters away, the instantaneous light-source field of view is located near an edge of the field of view of the detector and is contained within the field of view of the detector.
-
Patent Agency Ranking
36.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.
-
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.
-
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.
-
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.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
56
records
(took 0.037 seconds)
