Patents by Inventor Kai Waslowski

Kai Waslowski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230067699
    Abstract: An optoelectronic sensor for detecting an object in a monitored zone is provided that has a light transmitter and a transmission optics associated with the light transmitter in a transmission path for transmitting a light beam and a light receiver and a reception optics associated with the light receiver and offset from the transmission optics by a spacing in a reception path for receiving a light beam remitted by the object and for generating a received light spot on the light receiver, as well a control and evaluation unit that is configured to evaluate a received signal of the light receiver. The reception optics has at least one optical metaelement having a metasurface and/or a metamaterial and is configured such that a displacement of the received light spot on the light receiver in a near zone of the sensor dependent on a distance of the object from the sensor is no larger than a full width at half maximum of the received light spot.
    Type: Application
    Filed: August 30, 2022
    Publication date: March 2, 2023
    Inventors: Christoph MENZEL, Siegfried RINGWALD, Kai WASLOWSKI
  • Patent number: 11372107
    Abstract: Triangulation photoelectric proximity sensor (1) having a first light emitter (2) for emitting transmitted light into a detection zone (3), a transmitting optical system (4), in particular a lens, being arranged upstream of the light emitter (2), a first light receiver (6) having an array of receiving elements (5) for receiving light from the detection zone (3), which is remitted by an object (7) to be detected, the receiving elements (5) generating respective received signals, a receiving optical system (8) arranged in the beam path between detection zone (3) and first light receiver (6) for generating a light spot from the remitted light on the first light receiver (6), wherein the position of the light spot in the triangulation direction on the first light receiver (6) results in dependence on the distance of the object (7), and a control and evaluation unit (9) for generating a detection signal from the received signals on the basis of the position of the light spot on the first light receiver (6), wherei
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 28, 2022
    Assignee: SICK AG
    Inventor: Kai Waslowski
  • Patent number: 11079479
    Abstract: Measuring device (1) suited to measure the distance (d) of a reference object (O), configured so that it performs a plurality of measuring operations (Ai) in succession and comprising emission means (2) suited to emit a light radiation (R), receiving means (3) comprising a sensitive area (31) which is sensitive to the light radiation (R) and which is provided with a number M of sensitive units (4), each one of the sensitive units (4) being configured to generate an electrical signal (S), a first processing unit (5) comprising Ne processing elements (6), each one of said Ne processing elements (6) being configured to receive the electrical signal (S) for determining the time of impact (t) of a photon (F) on the sensitive units (4) and for calculating the value of said distance (d).
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: August 3, 2021
    Assignee: FONDAZIONE BRUNO KESSLER
    Inventors: Daniele Perenzoni, David Stoppa, Leonardo Gasparini, Matteo Perenzoni, Nicola Massari, Ulrich Zwölfer, Kai Waslowski, Alexander Bohli, Michael Albert, Friedhelm Wiethege
  • Patent number: 11079478
    Abstract: An optoelectronic sensor (10) for measuring a distance of an object (18) in accordance with a time of flight principle comprises a light transmitter (12) for transmitting a light signal (14), a light receiver (22) for receiving the light signal (20) after reflection or remission by the object (18), the light receiver (22) having a first plurality of pixel elements (24, 24a) each configured as an avalanche photo diode element biased with a bias voltage greater than a breakdown voltage and thus operated in a Geiger mode in order to trigger an avalanche event upon light reception, a distance measuring unit (34) having a second plurality of time of flight measuring units (34a) connected to pixel elements (24a) for determining a time of flight between transmission and reception of a light signal, the second plurality being less than the first plurality, switching means (32, 32a) for connecting selected pixel elements (24a) to time of flight measuring units (34a) in a one-to-one fashion, and a pixel selection unit
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: August 3, 2021
    Assignee: FONDAZIONE BRUNO KESSLER
    Inventors: Daniele Perenzoni, David Stoppa, Leonardo Gasparini, Matteo Perenzoni, Nicola Massari, Ulrich Zwölfer, Kai Waslowski, Alexander Bohli, Michael Albert, Friedhelm Wiethege
  • Patent number: 10948575
    Abstract: An optoelectronic sensor is provided for measuring the distance from an object in a monitored zone that has a light transmitter for transmitting light signals into the monitored zone; a light receiver having at least one avalanche photodiode operated in Geiger mode for receiving the light signals reflected or remitted by the object; an individual time of flight measurement unit for determining an individual time of flight of a light signal from the sensor to the object; and an evaluation unit that is configured to generate a common measured value for the distance from a plurality of individual times of flight.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: March 16, 2021
    Assignee: SICK AG
    Inventors: Stefan Kienzler, Martin Köhl, Kai Waslowski, Ulrich Zwölfer, Christophe Thil
  • Patent number: 10877133
    Abstract: An optoelectronic sensor is provided for measuring the distance from an object in a monitored zone that has a light transmitter for transmitting individual light signals into the monitored zone; a light receiver having at least one avalanche photodiode operated in Geiger mode for receiving the individual light pulses reflected or remitted by the object; an individual time of flight measurement unit for determining an individual time of flight of an individual light pulse as a duration between a transmitted point in time of the respective individual light pulse and its received point in time at the avalanche photodiode; and an evaluation unit that is configured to determine a common measured value for the distance from a plurality of individual times of flight and to estimate how many individual times of flight are to be expected in a time interval on the basis of background events.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: December 29, 2020
    Assignee: SICK AG
    Inventors: Stefan Kienzler, Martin Köhl, Kai Waslowski, Ulrich Zwölfer, Christophe Thil
  • Patent number: 10761209
    Abstract: The present invention relates to a triangulation light sensor for the detection of objects on a conveying path having a light transmitter for transmitting transmitted light into a detection zone that extends over a part region of the conveying path, having a light receiver, a reception optics arranged in an optical path between the detection zone and the light receiver, and an evaluation unit that is configured for generating an object detection signal from the received signals.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 1, 2020
    Assignee: SICK AG
    Inventors: Kai Waslowski, Ingolf Hörsch, Gerhard Merettig, Matthias Götz
  • Patent number: 10641894
    Abstract: A sensor (10) is provided for detecting an object (20) in a monitored zone (18), having at least one sensor element (36) for detecting a sensor signal; having a switch output (30) for outputting a binary object determination signal; and having an evaluation unit (28) that is configured to generate the object determination signal from the sensor signal in dependence on the detected object (20) and to determine, in a teaching phase, a switching point that determines the association between the sensor signal and the object determination signal. The evaluation unit (28) is further configured to detect a respective sensor signal for a plurality of detection situations in the teaching phase, with the associated object determination signal being predefined for the respective detection situation and with the switching point being derived therefrom.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: May 5, 2020
    Assignee: SICK AG
    Inventor: Kai Waslowski
  • Patent number: 10401482
    Abstract: 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.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: September 3, 2019
    Assignee: SICK AG
    Inventors: Stefan Kienzler, Martin Köhl, Kai Waslowski, Ulrich Zwölfer
  • Publication number: 20190242998
    Abstract: Triangulation photoelectric proximity sensor (1) having a first light emitter (2) for emitting transmitted light into a detection zone (3), a transmitting optical system (4), in particular a lens, being arranged upstream of the light emitter (2), a first light receiver (6) having an array of receiving elements (5) for receiving light from the detection zone (3), which is remitted by an object (7) to be detected, the receiving elements (5) generating respective received signals, a receiving optical system (8) arranged in the beam path between detection zone (3) and first light receiver (6) for generating a light spot from the remitted light on the first light receiver (6), wherein the position of the light spot in the triangulation direction on the first light receiver (6) results in dependence on the distance of the object (7), and a control and evaluation unit (9) for generating a detection signal from the received signals on the basis of the position of the light spot on the first light receiver (6), wherei
    Type: Application
    Filed: January 25, 2019
    Publication date: August 8, 2019
    Inventor: Kai WASLOWSKI
  • Publication number: 20190179014
    Abstract: The present invention relates to a triangulation light sensor for the detection of objects on a conveying path having a light transmitter for transmitting transmitted light into a detection zone that extends over a part region of the conveying path, having a light receiver, a reception optics arranged in an optical path between the detection zone and the light receiver, and an evaluation unit that is configured for generating an object detection signal from the received signals.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 13, 2019
    Inventors: Kai WASLOWSKI, Ingolf HÖRSCH, Gerhard MERETTIG, Matthias GÖTZ
  • Publication number: 20190049581
    Abstract: A sensor (10) is provided for detecting an object (20) in a monitored zone (18), having at least one sensor element (36) for detecting a sensor signal; having a switch output (30) for outputting a binary object determination signal; and having an evaluation unit (28) that is configured to generate the object determination signal from the sensor signal in dependence on the detected object (20) and to determine, in a teaching phase, a switching point that determines the association between the sensor signal and the object determination signal. The evaluation unit (28) is further configured to detect a respective sensor signal for a plurality of detection situations in the teaching phase, with the associated object determination signal being predefined for the respective detection situation and with the switching point being derived therefrom.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 14, 2019
    Inventor: Kai WASLOWSKI
  • Publication number: 20190033486
    Abstract: The invention relates to an optoelectronic detector for the detection of objects in a monitored zone that comprises: a sensor module comprising a light transmitter for transmitting a transmitted light signal into the monitored zone, a light receiver for receiving a light signal from the monitored zone and for generating a corresponding received signal, and a sensor evaluation unit for evaluating the received signal and for generating process data (object determination signal) and for generating sensor module data; a process data channel for outputting the process data; a condition monitoring module having a condition evaluation unit for generating condition data; and a first internal interface between the sensor module and the condition monitoring module for transmitting the sensor module data to the condition monitoring module.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 31, 2019
    Inventors: Kai WASLOWSKI, Ingolf HÖRSCH, Gerhard MERETTIG
  • Publication number: 20190018117
    Abstract: An optoelectronic sensor (10) for measuring a distance of an object (18) in accordance with a time of flight principle comprises a light transmitter (12) for transmitting a light signal (14), a light receiver (22) for receiving the light signal (20) after reflection or remission by the object (18), the light receiver (22) having a first plurality of pixel elements (24, 24a) each configured as an avalanche photo diode element biased with a bias voltage greater than a breakdown voltage and thus operated in a Geiger mode in order to trigger an avalanche event upon light reception, a distance measuring unit (34) having a second plurality of time of flight measuring units (34a) connected to pixel elements (24a) for determining a time of flight between transmission and reception of a light signal, the second plurality being less than the first plurality, switching means (32, 32a) for connecting selected pixel elements (24a) to time of flight measuring units (34a) in a one-to-one fashion, and a pixel selection unit
    Type: Application
    Filed: July 10, 2018
    Publication date: January 17, 2019
    Inventors: Daniele PERENZONI, David STOPPA, Leonardo GASPARINI, Matteo PERENZONI, Nicola MASSARI, Ulrich ZWÖLFER, Kai WASLOWSKI, Alexander BOHLI, Michael ALBERT, Friedhelm WIETHEGE
  • Publication number: 20190018118
    Abstract: Measuring device (1) suited to measure the distance (d) of a reference object (O), configured so that it performs a plurality of measuring operations (Ai) in succession and comprising emission means (2) suited to emit a light radiation (R), receiving means (3) comprising a sensitive area (31) which is sensitive to the light radiation (R) and which is provided with a number M of sensitive units (4), each one of the sensitive units (4) being configured to generate an electrical signal (S), a first processing unit (5) comprising Ne processing elements (6), each one of said Ne processing elements (6) being configured to receive the electrical signal (S) for determining the time of impact (t) of a photon (F) on the sensitive units (4) and for calculating the value of said distance (d).
    Type: Application
    Filed: July 10, 2018
    Publication date: January 17, 2019
    Inventors: Daniele PERENZONI, David STOPPA, Leonardo GASPARINI, Matteo PERENZONI, Nicola MASSARI, Ulrich ZWÖLFER, Kai WASLOWSKI, Alexander BOHLI, Michael ALBERT, Friedhelm WIETHEGE
  • Publication number: 20180372849
    Abstract: An optoelectronic sensor is provided for measuring the distance from an object in a monitored zone that has a light transmitter for transmitting light signals into the monitored zone; a light receiver having at least one avalanche photodiode operated in Geiger mode for receiving the light signals reflected or remitted by the object; an individual time of flight measurement unit for determining an individual time of flight of a light signal from the sensor to the object; and an evaluation unit that is configured to generate a common measured value for the distance from a plurality of individual times of flight.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 27, 2018
    Inventors: Stefan KIENZLER, Martin KÖHL, Kai WASLOWSKI, Ulrich ZWÖLFER, Christophe THIL
  • Publication number: 20180372851
    Abstract: An optoelectronic sensor is provided for measuring the distance from an object in a monitored zone that has a light transmitter for transmitting individual light signals into the monitored zone; a light receiver having at least one avalanche photodiode operated in Geiger mode for receiving the individual light pulses reflected or remitted by the object; an individual time of flight measurement unit for determining an individual time of flight of an individual light pulse as a duration between a transmitted point in time of the respective individual light pulse and its received point in time at the avalanche photodiode; and an evaluation unit that is configured to determine a common measured value for the distance from a plurality of individual times of flight and to estimate how many individual times of flight are to be expected in a time interval on the basis of background events.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 27, 2018
    Inventors: Stefan KIENZLER, Martin KÖHL, Kai WASLOWSKI, Ulrich ZWÖLFER, Christophe THIL
  • Publication number: 20180275310
    Abstract: An optoelectronic sensor (10) is provided that has a light transmitter (12) for transmitting light (16) into a monitored zone (18); a light receiver (26) having a first plurality of light reception elements (28) for receiving the light (22) reflected or remitted at objects (20) in the monitored zone (20); and a switching signal unit (32) for generating a switching signal from the reception signals of the light reception elements (28). In this respect, a light distribution measurement unit (36) is provided for generating a light distribution signal spatially resolved over the light reception elements (28) from the reception signals of the light reception elements (28) in parallel with the generation of the switching signal.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 27, 2018
    Inventors: Ingolf HÖRSCH, Kai WASLOWSKI, Gerhard MERETTIG, Matthias GÖTZ
  • Patent number: 9989641
    Abstract: The invention relates to a method of detecting an object in which pulses of transmitted light are repeatedly transmitted into a transmission zone by means of a light source; reception light received from the detection zone is detected by means of a detection apparatus which has a plurality of detectors; and an evaluation zone is defined which comprises a plurality of detectors and within which reception light is incident onto the detectors. The method is characterized in that a plurality of part regions are fixed within the evaluation zone; the part regions are at least partly successively evaluated while using a plurality of consecutive pulses of transmitted light; and the evaluations of the part regions are combined to determine the presence of an object in the detection zone.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: June 5, 2018
    Assignee: SICK AG
    Inventors: Kai Waslowski, Ulrich Zwölfer
  • Publication number: 20170184709
    Abstract: 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.
    Type: Application
    Filed: November 4, 2016
    Publication date: June 29, 2017
    Inventors: Stefan KIENZLER, Martin KÖHL, Kai WASLOWSKI, Ulrich ZWÖLFER