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    OPTOELECTRONIC SENSOR FOR DETECTING AND DETERMINING THE DISTANCE OF OBJECTS AND TRIGGER CIRCUIT FOR SUCH A SENSOR
    2.
    发明公开
    OPTOELECTRONIC SENSOR FOR DETECTING AND DETERMINING THE DISTANCE OF OBJECTS AND TRIGGER CIRCUIT FOR SUCH A SENSOR 审中-公开

    公开(公告)号：US20230266446A1

    公开(公告)日：2023-08-24

    申请号：US18111239

    申请日：2023-02-17

    Applicant: SICK AG

    Inventor： Alexander BOHLI ,  Stephan KOLB ,  Klaus CLEMENS ,  Axel JAHN

    IPC: G01S7/4865 ,  G01S7/4861 ,  G01S17/10

    CPC classification number: G01S7/4865 ,  G01S7/4861 ,  G01S17/10

    Abstract: An optoelectronic sensor for detecting and determining the distance of an object in a monitored area is specified with a light emitter having a light source for emitting light pulses, a light receiver for generating a received signal from a light pulse remitted by the object and with a control and evaluation unit, which is designed to control the light emitter and to determine a time-of-flight of the light and, from this, a distance of the object to the sensor. The control and evaluation unit has a time measurement unit which is set up to receive the received signal and a trigger signal and to determine the time-of-flight of the light from a time interval between the trigger signal and the received signal. The sensor further has a trigger circuit that is set up to tap a voltage applied to the light source of the light emitter and to output the trigger signal when an amount of the tapped voltage exceeds a predetermined threshold value.

    Optoelectronic Sensor and Method for the Detection of Objects
    3.
    发明申请
    Optoelectronic Sensor and Method for the Detection of Objects 审中-公开

    公开(公告)号：US20190235058A1

    公开(公告)日：2019-08-01

    申请号：US16256238

    申请日：2019-01-24

    Applicant: SICK AG

    Inventor： Hartmut GIMPEL ,  Gottfried HUG ,  Klaus CLEMENS

    IPC: G01S7/481 ,  G01S17/42 ,  G01S17/89

    CPC classification number: G01S7/4817 ,  G01S7/4811 ,  G01S7/4815 ,  G01S17/42 ,  G01S17/89

    Abstract: An optoelectronic sensor for the detection of objects in a monitored region is provided that comprises at least one light transmitter for transmitting a plurality of light beams separate from one another starting from a respective transmission point, a common transmission optics for the transmitted light beams, at least one light receiver for generating a respective received signal from the remitted light beams reflected from the objects and incident at a respective reception point, a common reception optics for the remitted light beams and an evaluated unit for obtaining information on the objects from the received signals. In this connection the transmission points are arranged on a first circular line and/or the reception points are arranged on the second circular line.

    DETECTING LIGHT USING A PLURALITY OF AVALANCHE PHOTODIODE ELEMENTS
    4.
    发明申请
    DETECTING LIGHT USING A PLURALITY OF AVALANCHE PHOTODIODE ELEMENTS 审中-公开

    公开(公告)号：US20200057146A1

    公开(公告)日：2020-02-20

    申请号：US16535426

    申请日：2019-08-08

    Applicant: SICK AG

    Inventor： Sascha STEINKOGLER ,  Martin MARRA ,  Klaus CLEMENS

    IPC: G01S7/481 ,  G01J1/44 ,  G01S17/10

    Abstract: A light receiver (22) is provided having a plurality of avalanche photodiode elements (24) that can each be biased above a breakdown voltage by a bias voltage and can thus be operated in a Geiger mode, wherein the avalanche photodiode elements (24) form a plurality of groups, and having a control unit (30) to change the sensitivity of the avalanche photodiode elements (24) of a respective group. In this respect, the control unit (30) is configured to respectively change the sensitivity of the avalanche photodiode elements (24) of a group at at least one point in time assigned to the group, with different points in time being assigned to the groups.

    Light Receiver with Avalanche Photo Diodes in a Geiger Mode
    5.
    发明申请
    Light Receiver with Avalanche Photo Diodes in a Geiger Mode 有权
    光接收器与雪崩模式中的雪崩照片二极管

    公开(公告)号：US20170030769A1

    公开(公告)日：2017-02-02

    申请号：US15216086

    申请日：2016-07-21

    Applicant: SICK AG

    Inventor： Klaus CLEMENS ,  Gottfried HUG ,  Stefan SEITZ ,  Sebastian TSCHUCH

    IPC: G01J1/44 ,  H01L27/146 ,  H01L31/107

    CPC classification number: G01J1/44 ,  G01J1/46 ,  G01J2001/4466 ,  G01S7/4863 ,  H01L27/14643 ,  H01L31/02005 ,  H01L31/02027 ,  H01L31/107

    Abstract: A light receiver (10, 50) having a plurality of avalanche photo diode elements (10, 12a-c) which are biased with a bias voltage greater than a breakthrough voltage and are thus operated in a Geiger mode in order to trigger a Geiger current upon light reception, and having a signal detection circuit (50) for reading out the avalanche photo diode elements (10, 12a-c), wherein the signal detection circuit (50) comprises an active coupling element (52) having an input (54) connected to the avalanche photo diode elements (10, 12a-c) and an output (56), the active coupling element (52) mapping the Geiger current at the input (54) to a measuring current corresponding to the Geiger current in its course and level, wherein the input (54) forms a virtual short-circuit for the Geiger current with respect to a potential (ground, −UBE; Uconst−UBE), and the output (56) is decoupled from the input (54).

    Abstract translation: 具有多个雪崩光电二极管元件（10,12a-c）的光接收器（10,50），其偏压具有大于穿透电压的偏置电压，并且因此以盖革模式操作，以便触发盖盖电流 并且具有用于读出雪崩光电二极管元件（10,12a-c）的信号检测电路（50），其中信号检测电路（50）包括具有输入端（54）的有源耦合元件（52） ）连接到雪崩光电二极管元件（10,12a-c）和输出（56），所述有源耦合元件（52）将输入（54）处的盖盖电流映射到与其中的盖盖电流相对应的测量电流 其中所述输入端（54）相对于电位（地面，UCOBS-UBE）形成盖格电流的虚拟短路，并且输出端（56）与输入端（54）分离， 。

    OPTOELECTRONIC SENSOR AND METHOD FOR DETECTING OBJECTS
    6.
    发明申请
    OPTOELECTRONIC SENSOR AND METHOD FOR DETECTING OBJECTS 审中-公开

    公开(公告)号：US20190235082A1

    公开(公告)日：2019-08-01

    申请号：US16257697

    申请日：2019-01-25

    Applicant: SICK AG

    Inventor： Hartmut GIMPEL ,  Gottfried HUG ,  Klaus CLEMENS

    IPC: G01S17/42 ,  G01S7/481 ,  G01S17/89

    CPC classification number: G01S17/42 ,  G01S7/4811 ,  G01S7/4812 ,  G01S7/4813 ,  G01S7/4815 ,  G01S7/4817 ,  G01S17/89 ,  G01S17/936

    Abstract: An optoelectronic sensor (10) for detecting objects in a monitoring region (20), the sensor (10) having a scanning unit (12, 58) movable about an axis of rotation (18), a plurality of scanning modules (22) for periodically scanning the monitoring region (20) and for generating corresponding received signals, and an evaluation unit (48) for obtaining information about the objects from the received signals, the scanning modules (22) comprising at least one light transmitter (24) for transmitting several light beams (28) separated from one another and at least one light receiver (36) for generating the received signals from the light beams (32) remitted by the objects, wherein at least one scanning module (22) is at least one of tilted by a tilt angle (β) relative to its main viewing direction and rotated by a rotation angle (γ).

    DISTANCE-MEASURING OPTOELECTRONIC SENSOR AND METHOD FOR MEASURING DISTANCES
    7.
    发明申请
    DISTANCE-MEASURING OPTOELECTRONIC SENSOR AND METHOD FOR MEASURING DISTANCES 审中-公开

    公开(公告)号：US20190120961A1

    公开(公告)日：2019-04-25

    申请号：US16149388

    申请日：2018-10-02

    Applicant: SICK AG

    Inventor： Martin MARRA ,  Klaus CLEMENS

    IPC: G01S17/36 ,  G01S7/491

    Abstract: A distance-measuring optoelectronic sensor (10) for detecting and determining a distance of an object (16) in a monitoring area (14), the sensor (10) having a light transmitter (12) for transmitting a transmission signal, a light receiver (18) for generating a reception signal and a control and evaluation unit (24) configured to determine a light time of flight from the reception signal and, from that, the distance of the object (16), wherein the control and evaluation unit (24) is further configured to transmit at least one periodically modulated pulse as a transmission signal, to determine a reception time of the pulse in the reception signal and a phase offset of the modulation between transmission signal and reception signal in a neighborhood of the reception time and to determine the distance of the object (16) from the reception time and the phase offset.

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