公开(公告)号：US10584998B2

公开(公告)日：2020-03-10

申请号：US15850385

申请日：2017-12-21

Applicant: SICK AG

Inventor： Klaus Clemens ,  Gottfried Hug ,  Stefan Seitz ,  Sebastian Tschuch

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

Abstract: 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：US10509109B2

公开(公告)日：2019-12-17

申请号：US15376860

申请日：2016-12-13

Applicant: SICK AG

Inventor： Hartmut Gimpel ,  Sebastian Tschuch ,  Roger Buser

IPC: G01C3/08 ,  G01S7/481 ,  G01S17/08 ,  G01B11/24

Abstract: An optoelectronic sensor (10) for detecting an object in a monitoring area (20), the sensor (10) having at least one light transmitter (22) for transmitting a plurality of mutually separated light beams (26), a light receiver (34) with a plurality of light receiving elements (34a) for generating a respective reception signal from the remitted light beams (30) remitted by the objects, a receiving optics (32) arranged in front of the light receiver (34) and an evaluation unit (46) for obtaining information about the object from the reception signals, wherein at least some of the light receiving elements (34a) have a mutual offset in a direction perpendicular to their receiving surface.

公开(公告)号：US12105202B2

公开(公告)日：2024-10-01

申请号：US17076187

申请日：2020-10-21

Applicant: SICK AG

Inventor： Thomas Russ ,  Sebastian Tschuch ,  Romain Müller

IPC: G01S17/894 ,  G01S7/481 ,  G01S7/497 ,  G01S17/08 ,  H04N23/695 ,  H04N23/698

CPC classification number: G01S17/894 ,  G01S7/4817 ,  G01S7/497 ,  G01S17/08 ,  H04N23/695 ,  H04N23/698

Abstract: An optoelectronic sensor for detecting objects in a monitored zone is provided, wherein the sensor comprises a laser scanner having a deflection unit rotatable about an axis of rotation for scanning the monitored zone with at least one scanning beam; a first distance measurement unit for determining 3D measurement points of the respective objects impacted by the scanning beam using a time-of-flight method; a panorama camera having a panorama optics and having an image sensor with a plurality of light reception elements for detecting picture elements; and a control and evaluation unit that is configured to fuse the 3D measurement points and the picture elements. In this respect, the optical axis of the panorama camera and the rotation axis coincide.

公开(公告)号：US10436935B2

公开(公告)日：2019-10-08

申请号：US16053928

申请日：2018-08-03

Applicant: SICK AG

Inventor： Hartmut Gimpel ,  Sebastian Tschuch

IPC: G01V8/12 ,  G01S17/02 ,  G01S17/42 ,  G01S17/48 ,  G01S7/481 ,  H01L31/107 ,  H01L31/167 ,  H01S5/00 ,  H01S5/022 ,  H01S5/183 ,  H01S5/42

Abstract: An optoelectronic sensor for detecting objects in a monitored zone is provided that has a light transmitter having a plurality of individual light sources and a transmission optics arranged in front of the light transmitter for transmitting a transmitted light beam that is composed of a plurality of individual light beams of the individual light sources; a light receiver for generating a received signal from the transmitted light beam remitted in the monitored zone and incident on the light receiver; and an evaluation unit for detecting the objects from the received signal. An optical deflection element is arranged between the light transmitter and the transmission optics and has microoptical zones which are associated with the individual light sources and which deflect the individual light beams onto one another such that the cross-sections of the individual light beams together take up a smaller area in a virtual image plane in front of the transmission optics than the individual light sources themselves.

公开(公告)号：US10018505B2

公开(公告)日：2018-07-10

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