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公开(公告)号：US12298398B2
公开(公告)日：2025-05-13
申请号：US18745220
申请日：2024-06-17
Applicant: Opsys Tech Ltd.
Inventor： Mark J. Donovan , Raphael Harel , Noam Tziony , Mordehai Caspi , Meir Fogel
Abstract: A solid state LIDAR transmitter with matrix-addressable laser drive circuit includes a first electrical bus that provides a first voltage potential to columns of the matrix-addressable laser drive circuit and a second electrical bus that provide a second voltage potential to rows of the matrix-addressable laser drive circuit. A plurality of column switches connects the plurality of columns to the first electrical bus. A plurality of row switches connects the plurality of rows to the second electrical bus. The transmitter includes a plurality of series connected diodes comprising a laser diode in series with another diode, where a respective one of the plurality of series connected diodes is electrically connected between a respective column and row of the matrix-addressable laser drive circuit to form the LIDAR transmitter. At least some of the second diodes increasing an overall reverse breakdown voltage of the series connected diodes.
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公开(公告)号：US12055629B2
公开(公告)日：2024-08-06
申请号：US16907732
申请日：2020-06-22
Applicant: OPSYS Tech Ltd.
Inventor： Mark J. Donovan
CPC classification number: G01S17/10 , G01J1/00 , G01S7/4808 , G01S7/4814 , G01S7/4817 , G01S7/4876 , G01S17/89 , G01S17/931 , G01W1/02
Abstract: A method of Light Detection and Ranging (LIDAR) includes generating a first optical pulse that propagates towards a target and receiving an optical return signal reflected from the target resulting from the generated first optical pulse. The optical return signal is processed to determine a number of additional optical pulses desired to be propagated towards the target to meet a performance criteria. The determined number of additional optical pulses is then generated and propagated towards the target. The additional optical return signals reflected from the target are received and processed to obtain one or more LIDAR measurements.
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公开(公告)号：US20230350027A1
公开(公告)日：2023-11-02
申请号：US18350725
申请日：2023-07-11
Applicant: OPSYS Tech Ltd.
Inventor： Mark J. Donovan
IPC: G01S7/481 , G01S17/06 , G01S17/89 , G01S17/931
CPC classification number: G01S7/4815 , G01S17/06 , G01S17/89 , G01S17/931
Abstract: A light detection and ranging (LIDAR) transmitter includes a plurality of light emitters that generate a plurality of optical beams. A first lens is positioned in an optical path of the plurality of optical beams at a distance from at least one of the plurality of light emitters that is less than a focal length of the first lens. The first lens converges the plurality of optical beams to a converged optical beam having a beam waist. A second lens is positioned in the optical path of the converged optical beam. The second lens projects the converged optical beam to a target range. The position of the second lens and an emission width of at least one of the plurality of light emitters are configured to provide a desired field-of-view of the LIDAR transmitter at the target range.
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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.
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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.
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Patent Agency Ranking
公开(公告)号：US20210231806A1
公开(公告)日：2021-07-29
申请号：US17227300
申请日：2021-04-10
Applicant: Opsys Tech Ltd.
Inventor： Mark J. Donovan , Raphael Harel , Noam Tziony , Mordehai Caspi , Meir Fogel
Abstract: A solid state LIDAR transmitter with matrix-addressable laser drive circuit includes a first electrical bus that provides a first voltage potential to columns of the matrix-addressable laser drive circuit and a second electrical bus that provide a second voltage potential to rows of the matrix-addressable laser drive circuit. A plurality of column switches connects the plurality of columns to the first electrical bus. A plurality of row switches connects the plurality of rows to the second electrical bus. The transmitter includes a plurality of series connected diodes comprising a laser diode in series with another diode, where a respective one of the plurality of series connected diodes is electrically connected between a respective column and row of the matrix-addressable laser drive circuit to form the LIDAR transmitter. At least some of the second diodes increasing an overall reverse breakdown voltage of the series connected diodes.
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公开(公告)号：US20190146071A1
公开(公告)日：2019-05-16
申请号：US16168054
申请日：2018-10-23
Applicant: OPSYS Tech Ltd.
Inventor： Mark J. Donovan
Abstract: A light detection and ranging (LIDAR) system includes an optical transmitter comprising a plurality of lasers, where each of the plurality of lasers illuminates a field-of-view. A transmitter controller is configured to pulse desired ones of the plurality of lasers so that the plurality of lasers generate light in a desired illumination region. An optical receiver comprises a plurality of detectors positioned to detect light over the desired illumination region. The plurality of detectors generates an electrical detection signal. A time-of-flight measurement circuit measures the time-of-flight of light from the plurality of lasers to the plurality of detectors. The optical receiver calculates range information from the time-of-flight measurements. A receiver controller is electrically connected to the transmitter controller and is configured to bias at least some of the plurality of detectors at a bias point that achieves a desired detection signal noise level.
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公开(公告)号：US20180259623A1
公开(公告)日：2018-09-13
申请号：US15915840
申请日：2018-03-08
Applicant: Opsys Tech Ltd.
Inventor： Mark J. Donovan
CPC classification number: G01S7/4815 , G01S7/484 , G01S17/936
Abstract: A LIDAR illuminator includes a plurality of laser sources, each comprising an electrical input that receives a modulation drive signal that causes each of the plurality of laser sources to generate an optical beam. A controller having a plurality of electrical outputs, where a respective one of the plurality of electrical outputs is connected to an electrical input of a respective one of the plurality of laser sources, generates a plurality of modulation drive signals that cause the plurality of laser sources to generate a plurality of optical beams that form a combined optical beam. A peak optical energy of the combined optical beam in a measurement aperture at a measurement distance is less than a desired value.
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公开(公告)号：US20250044419A1
公开(公告)日：2025-02-06
申请号：US18922288
申请日：2024-10-21
Applicant: OPSYS Tech Ltd.
Inventor： Mark J. Donovan
IPC: G01S7/481 , G01S17/06 , G01S17/89 , G01S17/931
Abstract: A light detection and ranging (LIDAR) transmitter includes a plurality of light emitters that generate a plurality of optical beams. A first lens is positioned in an optical path of the plurality of optical beams at a distance from at least one of the plurality of light emitters that is less than a focal length of the first lens. The first lens converges the plurality of optical beams to a converged optical beam having a beam waist. A second lens is positioned in the optical path of the converged optical beam. The second lens projects the converged optical beam to a target range. The position of the second lens and an emission width of at least one of the plurality of light emitters are configured to provide a desired field-of-view of the LIDAR transmitter at the target range.
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公开(公告)号：US20240345223A1
公开(公告)日：2024-10-17
申请号：US18632602
申请日：2024-04-11
Applicant: OPSYS Tech Ltd.
Inventor： Larry Fabiny
IPC: G01S7/481 , G01S7/4863
CPC classification number: G01S7/4816 , G01S7/4863
Abstract: A LiDAR receiver includes an optical element configured with an optical power that projects light rays received at an input to a region where the received light rays overlap. An apodized aperture in the region where the received light rays overlap is configured with an optical transmission profile that changes radially across the apodized aperture to provide a desired modulation of the overlapped received light rays. Detector optics positioned adjacent to the apodized aperture focuses the modulated light rays at a detector plane. A two-dimensional pixilated detector array is positioned at the detector plane. The detector optics and desired modulation are chosen so that a ratio of an intensity of modulated light rays on one pixel of the two-dimensional array of pixels to an intensity of modulated light rays on an adjacent pixel of the two-dimensional array of pixels is a desired value.
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