公开(公告)号：US11624824B2

公开(公告)日：2023-04-11

申请号：US16257697

申请日：2019-01-25

申请人： SICK AG

发明人： Hartmut Gimpel ,  Gottfried Hug ,  Klaus Clemens

IPC分类号： G01S17/42 ,  G01S7/481 ,  G01S17/931

摘要： 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).

公开(公告)号：US10584998B2

公开(公告)日：2020-03-10

申请号：US15850385

申请日：2017-12-21

申请人： SICK AG

发明人： Klaus Clemens ,  Gottfried Hug ,  Stefan Seitz ,  Sebastian Tschuch

IPC分类号： G01J1/44 ,  G01S7/497 ,  G01S7/4863 ,  G01J1/46 ,  G01S17/89 ,  G01S7/481 ,  G01S17/08

摘要： A light receiver (22) having a plurality of avalanche photodiode elements (24) each configured to be biased with a bias voltage above a breakdown voltage and thus to be operated in a Geiger mode for triggering a Geiger current upon light reception, the light receiver (22) comprising a plurality of bias voltage terminals (40a-c) providing different bias voltages, wherein the avalanche photodiode elements (24) form a plurality of groups (421-42n), and wherein the avalanche photodiode elements (24) of a group (421-42n) are each supplied with a same one of the different bias voltages.

公开(公告)号：US11914074B2

公开(公告)日：2024-02-27

申请号：US16256238

申请日：2019-01-24

申请人： SICK AG

发明人： Hartmut Gimpel ,  Gottfried Hug ,  Klaus Clemens

IPC分类号： G01S7/481 ,  G01S17/42

CPC分类号： G01S7/4817 ,  G01S7/4811 ,  G01S7/4815 ,  G01S17/42

摘要： 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.

公开(公告)号：US10436638B2

公开(公告)日：2019-10-08

申请号：US15617398

申请日：2017-06-08

申请人： SICK AG

发明人： Klaus Clemens ,  Gottfried Hug ,  Stefan Seitz

IPC分类号： G01J1/46 ,  H01L27/144 ,  H01L31/02 ,  G01J1/44

摘要： A light receiver (50) is provided having a plurality of avalanche photodiode elements (10) that are each biased by a bias above a breakdown voltage and that are thus operated in a Geiger mode to trigger a Geiger current on light reception. The avalanche photodiode elements (10) have a first connector (20, 22, 28a-b) and a second connector (20, 22, 28a-b). A first signal tapping circuit (12) for reading out the avalanche photodiode elements is connected to one of the connectors (20, 22, 28a-b). In this respect, a second signal tapping circuit (12) for reading out the avalanche photodiode elements (10) is connected to the other connector (20, 22, 28a-b).

公开(公告)号：US10018505B2

公开(公告)日：2018-07-10

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 ,  G01J1/46 ,  G01S7/486 ,  H01L31/02 ,  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).