公开(公告)号：US20210103035A1

公开(公告)日：2021-04-08

申请号：US17065427

申请日：2020-10-07

申请人： SICK AG

发明人： Thomas RUSS

IPC分类号： G01S7/481 ,  G01S17/89

摘要： An optoelectronic sensor for detecting objects in a monitored zone is provided that has at least one light transmitter for transmitting a plurality of mutually separated light beams, a transmission optics for the transmitted light beams, at least one light receiver for generating a respective reception signal from light beams remitted by objects, a reception optics for the remitted light beams, and a control and evaluation unit for obtaining information on the objects from the reception signals, wherein the transmission optics and/or the reception optics has/have a first optical system. In this respect, the transmission optics and/or the reception optics has/have a second optical system for correcting aberrations comprising a plurality of optical correction elements that are each associated with a light beam and the second optical system is arranged between a beam separation plane.

公开(公告)号：US20210088775A1

公开(公告)日：2021-03-25

申请号：US17022260

申请日：2020-09-16

申请人： SICK AG

发明人： Oliver OSTOJIC

IPC分类号： G02B26/08 ,  G02B3/12 ,  G01S7/481

摘要： An optoelectronic sensor for detecting objects in a monitored zone is provided that has a light transmitter for transmitting at least one scanning beam, a movable first deflection unit for a periodic deflection of the scanning beam in a first direction, a light receiver for generating a received signal from the scanning beam remitted by objects in the monitored zone, and a control and evaluation unit that is configured to evaluate the received signal to determine the distance from an object scanned by the scanning beam using a time of flight process, A second deflection unit is here configured to additionally deflect the scanning beam in the first direction and/or in a second direction transverse to the first direction without a movement or at most with micromechanically moved elements.

公开(公告)号：US20210073499A1

公开(公告)日：2021-03-11

申请号：US17009962

申请日：2020-09-02

申请人： SICK AG

发明人： Pascal SCHÜLER ,  Marcel HAMPF ,  Fredrik OLSSON

IPC分类号： G06K7/14

摘要： A method for determining a module size of an optical code (20), wherein image data with the code (20) are detected, a brightness distribution is determined from the image data, and the module size is determined from the brightness distribution. The brightness distribution for example is a greyscale histogram.

公开(公告)号：US10853613B2

公开(公告)日：2020-12-01

申请号：US16287544

申请日：2019-02-27

申请人： SICK AG

发明人： Klemens Wehrle ,  Andreas Bierer ,  Björn Denz

IPC分类号： G06K19/06 ,  G06K7/14 ,  G06K7/10

摘要： An optoelectronic code reading apparatus is provided that has at least one camera-based code reader having an image sensor for recording image data from a reading zone, that has a control and evaluation unit that comprises a decoding unit for locating code zones in the image data and for reading their code content, and that has a filter unit to determine whether a multiple reading has taken place in which a plurality of codes were read. In this respect, the filter unit is furthermore configured to check the geometry of the code zones in the case of a multiple reading to identify a valid code.

公开(公告)号：US20200084850A1

公开(公告)日：2020-03-12

申请号：US16538971

申请日：2019-08-13

申请人： SICK AG

发明人： Johannes EBLE

IPC分类号： H05B33/08 ,  H01L31/0232 ,  H01L27/15 ,  H01L27/146 ,  H01L31/14

摘要： The light grid according to the invention comprises several light emitting units for emitting light beams, several light receiving units which supply reception signals according to the incidence of light and which can receive the transmitted light beams to form the light grid in case the beam paths are free, receiving optics and an evaluation unit for evaluating the intensity of the incidence of light on the light receiving units. In order to increase the performance of the light grid by limiting the field of view of the light receivers, the receiving optics comprise a substrate having a microlens array and each microlens is associated with an aperture and the apertures are each at the focal point of the associated microlens.

公开(公告)号：US20200057146A1

公开(公告)日：2020-02-20

申请号：US16535426

申请日：2019-08-08

申请人： SICK AG

发明人： Sascha STEINKOGLER ,  Martin MARRA ,  Klaus CLEMENS

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

摘要： 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.

公开(公告)号：US10436935B2

公开(公告)日：2019-10-08

申请号：US16053928

申请日：2018-08-03

申请人： SICK AG

发明人： Hartmut Gimpel ,  Sebastian Tschuch

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

摘要： 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：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：US10401531B2

公开(公告)日：2019-09-03

申请号：US15446342

申请日：2017-03-01

申请人： SICK AG

发明人： Jürgen Bürger ,  Stefan Kienzler ,  Ralf Herrmann

IPC分类号： G01V8/20 ,  F16P3/14

摘要： A light grid and a method using a light grid include a transmission unit having a plurality of light transmitters for transmitting light beams and a reception unit having a plurality of light receivers for receiving the light beams of the light transmitters. The transmission unit and the reception unit are spaced apart from one another and are disposed opposite one another. A monitored field is formed by oppositely disposed light transmitters and light receivers for detecting objects. The light transmitters are activated one after the other in cycles and the light receivers are evaluated in these cycles. A programmable evaluation unit is provided for evaluating the received signals of the light receivers of a cycle with reference to predefined beam evaluation criteria and forming an intermediate result therefrom. The evaluation unit evaluates at least one intermediate result of a cycle with reference to at least one predefined sequential criterion.

公开(公告)号：US10401482B2

公开(公告)日：2019-09-03

申请号：US15343851

申请日：2016-11-04

申请人： SICK AG

发明人： Stefan Kienzler ,  Martin Köhl ,  Kai Waslowski ,  Ulrich Zwölfer

IPC分类号： G01C3/08 ,  G01S7/486 ,  G01S17/10 ,  G01S7/487

摘要： An optoelectronic sensor for measuring a distance comprises a light transmitter (20) for transmitting a sequence of individual light pulses (22) and a light receiver (26) for receiving the individual light pulses (24). An individual time of flight measuring unit (28) determines a sequence of individual times of flight of the individual light pulses (22, 24) as the duration between a transmission point in time and its reception point in time. An evaluation unit (30, 32) accumulates individual times of flight and determines a common measurement value for the distance from the accumulated individual times of flight. The evaluation unit (30) comprises a filter (36) for accumulating an individual time of flight only if it coincides, within a time window, with a preceding individual time of flight.