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公开(公告)号：US20250138159A1
公开(公告)日：2025-05-01
申请号：US19008252
申请日：2025-01-02
Applicant: Opsys Tech Ltd.
Inventor： Larry Fabiny
IPC: G01S7/481 , G01S7/48 , G01S17/931
Abstract: A solid-state LIDAR transmitter includes a laser array comprising first and second laser pixels that each generate first and second sub-aperture beams. A first microlens focuses first and second sub-aperture beams generated by the first laser pixel and focuses first and second sub-aperture beams generated by the second laser pixel. A second microlens directs the first and second sub-aperture beams generated by the first pixel such that they overlap at a plane. A lens projects the first sub-aperture beam generated by the first laser pixel and the first sub-aperture beam generated by the second laser pixel with a different angle in the far field in order to achieve a desired spatial resolution of the LIDAR system.
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公开(公告)号：US12222445B2
公开(公告)日：2025-02-11
申请号：US16941896
申请日：2020-07-29
Applicant: OPSYS TECH LTD.
Inventor： Larry Fabiny
IPC: G01S7/481 , G01S7/48 , G01S17/931
Abstract: A solid-state LIDAR transmitter includes a laser array comprising first and second laser pixels that each generate first and second sub-aperture beams. A first microlens focuses first and second sub-aperture beams generated by the first laser pixel and focuses first and second sub-aperture beams generated by the second laser pixel. A second microlens directs the first and second sub-aperture beams generated by the first pixel such that they overlap at a plane. A lens projects the first sub-aperture beam generated by the first laser pixel and the first sub-aperture beam generated by the second laser pixel with a different angle in the far field in order to achieve a desired spatial resolution of the LIDAR system.
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公开(公告)号：US20240337748A1
公开(公告)日：2024-10-10
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：US20240329219A1
公开(公告)日：2024-10-03
申请号：US18619069
申请日：2024-03-27
Applicant: OPSYS Tech Ltd.
Inventor： Jacov Kagan , Yakov Weinberg , Shlomo Yehezkel , Niv Maayan
Abstract: A method of calibrating a LiDAR system includes providing a calibration target with an IR source. A partially IR opaque mask is proximate to the source and defines a plurality of regions with known areas that are at least partially transparent to IR. A vehicle coordinate system is then determined. The calibration target is then positioned in the vehicle coordinate system in a predetermined position with a predetermined orientation. An image of the calibration target is acquired with the LIDAR sensors. Image processing is performed to determine the position and orientation of the calibration target in the LiDAR sensors coordinate system. A rotation of the LIDAR sensors around an axis of attachment of the LiDAR sensor is determined from the image processing that compensates for misalignment of the LIDAR sensors. The LIDAR sensor coordinate system is then adjusted to match the vehicle coordinate system based on the determined rotation.
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公开(公告)号：US12038509B2
公开(公告)日：2024-07-16
申请号：US18353091
申请日：2023-07-16
Applicant: Opsys Tech Ltd.
Inventor： Mark J. Donovan , Raphael Harel , Noam Tziony , Mordehai Caspi , Meir Fogel
Abstract: A solid state LIDAR transmitter includes a two dimensional array of laser devices having columns and rows and configured such that anodes of laser devices in a column are connected to a common anode connection and cathodes of laser devices in a row are connected to a common cathode connection. A capacitive discharge circuit comprises a first switch configured so the capacitive discharge circuit charges to a voltage potential when the first switch is open and discharges when the first switch is closed. A second switch is configured such that the common cathode connection is coupled to ground when the second switch is closed. A controller is configured to instruct the first switch and the second switch to close at a time t0 such that the capacitive discharge circuit charges to the voltage potential at a time, t1, thereby causing a laser device connected between the capacitive discharge circuit and the second switch to generate an optical pulse.
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Patent Agency Ranking
公开(公告)号：US20240019549A1
公开(公告)日：2024-01-18
申请号：US18475465
申请日：2023-09-27
Applicant: OPSYS Tech Ltd.
Inventor： Mark J. Donovan , Larry Fabiny
IPC: G01S7/481 , G01S7/4865 , G01S7/484 , G01S17/08 , G02B26/08 , G01S17/931
CPC classification number: G01S7/4815 , G01S7/4865 , G01S7/484 , G01S7/4817 , G01S17/08 , G02B26/0833 , G01S17/931
Abstract: A LIDAR system includes an optical transmitter comprising a plurality of lasers, each illuminating a FOV in an illumination region. A transmitter controller has outputs connected to respective laser inputs. The transmitter controller generates electrical pulses at the outputs so that the lasers generate light in a desired pattern in the illumination region. An optical receiver has an input FOV in the illumination region and comprises a plurality of detectors, each having a FOV and being positioned to detect light over the illumination region; and a TOF measurement circuit that measures the TOF from the lasers to the detectors. The receiver calculates range information. An adaptive optical shutter positioned between the optical transmitter and the optical receiver has a transparent or reflected region FOV, where the optical shutter restricts illumination at the input of the optical receiver to a region which is smaller than the optical receiver FOV.
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公开(公告)号：US20230358887A1
公开(公告)日：2023-11-09
申请号：US18353091
申请日：2023-07-16
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：US11802943B2
公开(公告)日：2023-10-31
申请号：US16168054
申请日：2018-10-23
Applicant: OPSYS Tech Ltd.
Inventor： Mark J. Donovan
IPC: G01S7/486 , G01S7/487 , G01S7/4863 , G01S17/42 , G01S7/481 , G01S17/931
CPC classification number: G01S7/4868 , G01S7/487 , G01S7/4815 , G01S7/4863 , G01S7/4876 , G01S17/42 , G01S17/931
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：US11740331B2
公开(公告)日：2023-08-29
申请号：US17164773
申请日：2021-02-01
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：US20230258778A1
公开(公告)日：2023-08-17
申请号：US17976554
申请日：2022-10-28
Applicant: OPSYS Tech Ltd.
Inventor： Mark J. Donovan , Larry Fabiny
IPC: G01S7/481 , G01S17/931 , G01S17/10
CPC classification number: G01S7/4817 , G01S7/4815 , G01S17/931 , G01S17/10 , G01S7/4816
Abstract: A solid-state LIDAR system includes a plurality of lasers, each generating an optical beam having a FOV when energized. A plurality of detectors is positioned in an optical path of the optical beams generated by the plurality of lasers. A FOV of at least one of the plurality of optical beams generated by the plurality of lasers overlaps a FOV of at least two of the plurality of detectors. A controller is configured to generate bias signals at a plurality of laser control outputs that energize a selected group of the plurality of lasers in a predetermined time sequence and is configured to detect a predetermined sequence of detector signals generated by the plurality of detectors.
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