SCANNING LIDAR SYSTEMS WITH FLOOD ILLUMINATION FOR NEAR-FIELD DETECTION

    公开(公告)号:WO2021194887A1

    公开(公告)日:2021-09-30

    申请号:PCT/US2021/023241

    申请日:2021-03-19

    Abstract: A LiDAR sensor includes a first lens, a first laser source configured to emit a plurality of first light pulses to be collimated by the first lens, a flood illumination source configured to emit a plurality of second light pulses as diverging light rays, a second lens configured to receive and focus (i) a portion of any one of the plurality of first light pulses and (ii) a portion of any one of the plurality of second light pulses that are reflected off of the one or more objects, a detector configured to detect (i) the portion of any one of the plurality of first light pulses and (ii) the portion of any one of the plurality of second light pulses, and a processor configured to construct a three-dimensional image of the one or more objects based on the detected portions of first light pulses and second light pulses.

    LICHTMODUL UND LIDAR-VORRICHTUNG MIT MINDESTENS EINEM DERARTIGEN LICHTMODUL

    公开(公告)号:WO2021140160A1

    公开(公告)日:2021-07-15

    申请号:PCT/EP2021/050199

    申请日:2021-01-07

    Abstract: Das Lichtmodul weist einen Träger (TR) mit Schaltungs-Die auf, wobei auf der Oberseite (TRO) des Trägers (TR) mittels Die-zu-Die-Bondings ein Leuchtdioden-Die (D1D) und ein diesem zugeordnetes Ladungsspeicherbauteil (LSBT) elektrisch mit den Leitungspfad-Anschlussfeldern (TAF1, TAF2) eines Transistors (Tdis) verbunden sind. Die elektrische Verbindung zwischen den beiden Dies und dem Leitungspfad (LPF) des Transistors (Tdis) ist so kurz wie möglich. Oberseitig der beiden Dies befinden sich jeweils ein Anschlussfeld (DAF2, LAF2), die mit einem kurzen Bonddraht (BD1) miteinander verbunden sind. Dieser Entladeschaltkreis ist hinsichtlich der Reduktion parasitärer Induktivitäten und ohmschen Widerstände optimiert. Das Ladungsspeicherbauteil (LSBT) wird mittels einer Aufladeschaltung (B1) aufgeladen, die über einen zweiten Bonddraht (BD2) mit dem Ladungsspeicherbauteil (LSBT) elektrisch verbunden ist. Der zweite Bonddraht (BD2) ist länger als der erste Bonddraht (BD1). Das Lichtmodul kann Teil einer LIDAR-Vorrichtung sein, die ein spezielles Optiksystem aufweisen kann. Die Treiberschaltung für den Transistor (Tdis) kann ebenfalls in besonderer Weise ausgeführt sein.

    FLASH LIDAR HAVING NONUNIFORM LIGHT MODULATION

    公开(公告)号:WO2021019308A1

    公开(公告)日:2021-02-04

    申请号:PCT/IB2020/000894

    申请日:2020-04-23

    Inventor: STEINBERG, Amit

    Abstract: A method for detecting objects using a LIDAR system may include controlling a light emission assembly comprising a light source in a manner enabling spatial light modulation to a field of view (FOV) of the LIDAR system to vary during different flash light emissions of the light emission assembly. The method may also include controlling a sensor to detect first reflection signals indicative of reflections of first flash light emissions from objects in the FOV. The method may further include determining a nonuniform spatial light modulation for the light emission assembly based on at least one of the first reflection signals. The method may also include instructing the light emission assembly to emit to the FOV a second flash light emission in accordance with the nonuniform spatial light modulation, and detecting an object in the FOV based on second reflection signals of the second flash light emission.

    METHOD FOR FABRICATING A PLURALITY OF TIME-OF-FLIGHT SENSOR DEVICES

    公开(公告)号:WO2019072927A8

    公开(公告)日:2019-04-18

    申请号:PCT/EP2018/077626

    申请日:2018-10-10

    Applicant: AMS AG

    Abstract: A method for fabricating a plurality of Time-of-Flight sensor devices (1) comprises a step of providing a wafer (100) including a plurality of wafer portions (110) for a respective one of the Time-of-Flight sensor devices (1), wherein each of the wafer portions (110) includes a first light detecting area (10) and a second light detecting area (20) and a respective light emitter device (30). The respective light emitter device (30) and the respective first light detecting area (10) is encapsulated by a first volume (40) of a light transparent material (130), and the respective second light detecting area (20) is encapsulated by a second volume (50) of the light transparent material (130). Before singulation of the devices (1), an opaque material (60) is placed on the wafer portions (110) in a space (120) between the respective first and second volume (40, 50) of the light transparent material (130).

    SYSTEM AND METHOD FOR DIFFERENTIAL COMPARATOR-BASED TIME-OF-FLIGHT MEASUREMENT WITH AMPLITUDE ESTIMATION

    公开(公告)号:WO2023059498A1

    公开(公告)日:2023-04-13

    申请号:PCT/US2022/045159

    申请日:2022-09-29

    Applicant: ARGO AI, LLC

    Abstract: A signal delay component may be configured to receive a LiDAR output signal including an analog waveform from a LiDAR system, and provide a time-delayed LiDAR output signal including a time-delayed analog waveform. A differential comparator may be configured to receive the LiDAR output signal including the analog waveform and the time-delayed LiDAR output signal including the time-delayed analog waveform, and to provide a digital output signal. A processor may be configured to generate LiDAR data including a distance associated with the LiDAR output signal and an amplitude associated with the LiDAR output signal, the distance being based on a first time associated with a rising edge of the digital output signal, and the amplitude being based on a time difference between the first time associated with the rising edge of the digital output signal and a second time associated with a falling edge of the digital output signal.

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