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    POLYGON SCANNER AND METHOD OF DETECTING OBJECTS IN A MONITORED ZONE
    1.
    发明申请
    POLYGON SCANNER AND METHOD OF DETECTING OBJECTS IN A MONITORED ZONE 审中-公开

    公开(公告)号：US20190154807A1

    公开(公告)日：2019-05-23

    申请号：US16196567

    申请日：2018-11-20

    申请人： SICK AG

    发明人： Sascha STEINKOGLER ,  Florian SCHNEIDER ,  Helmut WEBER ,  Stefan SEITZ ,  Martin HÖGY

    IPC分类号： G01S7/481 ,  G01S17/10 ,  G01S7/486 ,  G06K7/10 ,  G01S7/48 ,  G02B7/182 ,  G02B26/12

    摘要： A polygon scanner (10) for detecting objects (24) in a monitored zone (22) is provided having a light transmitter (12); having a light receiver (30); having an evaluation unit (32); and having a rotatable mirror unit (20) for a periodic deflection of the light beam (16) that has a plurality of mirror facets (34) in order thus to scan an angular section multiple times per rotation of the mirror unit (20) by a respective mirror facet (34), wherein at least some of the mirror facets (34) have a different curvature from one another. In this respect, at least one of the mirror facets (34) is configured as a free-form surface whose curvature is adapted to the angle of incidence of the transmitted light beam (16) on the mirror facet (34) that varies during the rotation of the mirror unit (20).

    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

    申请人： SICK AG

    发明人： Klaus CLEMENS ,  Gottfried HUG ,  Stefan SEITZ ,  Sebastian TSCHUCH

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

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

    摘要： 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).

    摘要翻译： 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， 。

    SENSOR AND METHOD OF HEATING A SENSOR
    8.
    发明申请
    SENSOR AND METHOD OF HEATING A SENSOR 审中-公开

    公开(公告)号：US20170248997A1

    公开(公告)日：2017-08-31

    申请号：US15444579

    申请日：2017-02-28

    申请人： SICK AG

    发明人： Stefan SEITZ

    IPC分类号： G06F1/26 ,  G06K7/14 ,  H05B1/02

    摘要： A sensor (10) is provided that has at least one sensor functional group (12), a heating device (14, 22), and a heating control (14, 20) to control a heating power (Pheating) of the heating device (14, 22). In this respect, the heating control (20) is configured to adapt the heating power (Pheating) to a power consumption (Psensor) of the sensor functional group (12).