公开(公告)号：US20230266450A1

公开(公告)日：2023-08-24

申请号：US18167847

申请日：2023-02-11

Applicant: OPSYS Tech Ltd.

Inventor： Niv Maayan ,  Amit Fridman ,  Mark J. Donovan ,  Sara Israeli ,  Gil Aharon Cohen ,  Yaacov Kagan

IPC: G01S7/497 ,  G01S17/894 ,  G01S7/4863

CPC classification number: G01S7/497 ,  G01S17/894 ,  G01S7/4863

Abstract: A method of LIDAR includes configuring a laser array such that each laser generates an optical beam having a FOV and intensity that illuminates a ROI and configuring a detector array such that each detector receives light from a detector FOV in the ROI. The laser array is energized and light is received at the detector array from the illuminated ROI. The received light is processed for select ones of the detectors with standard parameters to determine TOF data for the select ones of detectors to generate an image of an object in the ROI. The TOF data for the select detectors is analyzed to determine if a blooming criterion is met and, if so, the laser is re-energized. Light is then received at the detector array from the illuminated ROI and processed with parameters to determine TOF and intensity data that compensate for the blooming.

公开(公告)号：US20220146680A1

公开(公告)日：2022-05-12

申请号：US17522953

申请日：2021-11-10

Applicant: OPSYS Tech Ltd.

Inventor： Mark J. Donovan ,  Larry Fabiny ,  Niv Maayan ,  Amit Fridman ,  Raphael Harel

IPC: G01S17/89 ,  G01S17/10 ,  G01S17/931 ,  G01S7/486 ,  G01S7/481

Abstract: A LiDAR transmitter with optical power monitoring includes a laser array positioned in a first plane that generates optical beams that propagate along an optical path. A first projecting optical element positioned in the optical path projects the plurality of optical beams to overlap at a common point. A second projecting optical element projects light from the first projecting optical element in a direction of transmission. A directing optical element positioned at the common point in the optical path of the plurality of beams produces an illumination region with light from each of the plurality of beams in a second plane. A monitor generates a detected signal in response to the collected light. A controller generates the electrical signal in response to the detected signal that controls the laser to achieve a desired operation of the LiDAR system transmitter.

公开(公告)号：US20210278540A1

公开(公告)日：2021-09-09

申请号：US17191641

申请日：2021-03-03

Applicant: OPSYS Tech Ltd.

Inventor： Niv Maayan ,  Amit Fridman ,  Itamar Eliyahu ,  Mark J. Donovan

IPC: G01S17/89 ,  G01S7/481 ,  G01J1/42 ,  G01S7/4865 ,  G01S17/931

Abstract: A system and method of noise filtering light detection and ranging signals to reduce false positive detection of light generated by a light detection and ranging transmitter in an ambient light environment that is reflected by a target scene. A received data trace is generated based on the detected light. An ambient light level is determined based on the received data trace. Valid return pulses are determined by noise filtering, which can for example, by comparing magnitudes of return pulses to a predetermined variable, N, times the determined ambient light level or by comparing magnitudes of return pulses to a sum of the ambient light level and N-times the variance of the ambient light level. A point cloud comprising the plurality of data points with a reduced false positive rate is generated.