Sick Ag

Jörg Sigmund

Magnus Albert

Markus Hammes

Joachim Krämer

Stefan Mack

Michael Engler

Christoph Hofmann

Christian Hulm

Olaf Henkel

Michael Kerp

Gerold Feise

Boris Baldischweiler

Wolfram Strepp

Dr Markus Hammes

Ralf Zimmermann

Albert Magnus

Dr Magnus Albert

Dr Fabian Jachmann

An optoelectronic sensor () is provided for detecting object information from a monitored zone () having a light receiver (); a reception optics () associated with the light receiver () for generating a light spot on the light receiver (); and an evaluation unit () for generating the object information from a received signal of the light receiver (). In this respect, a manipulation unit () is provided to vary the reception optics (), the light receiver () and/or elements of the reception optics () such that the portion of the light spot that is incident on the light receiver () varies.

Optoelectronic sensor and method of detecting object information

An optoelectronic sensor () for detecting objects comprises a light transmitter () for transmitting a light beam (), a rotatable deflection unit () for periodically deflecting the light beam (), an angle measuring unit () for determining an angular position of the deflection unit (), a light receiver () for generating a reception signal from a reflected light beam (), wherein the angle measuring unit () comprises an image sensor () moving with the deflection unit and arranged in the direction of a stationary part () of the sensor (), or a stationary image sensor () arranged in the direction of the deflection unit (), further comprising a computing unit () to determine a relative movement of the deflection unit () with respect to the sensor () from a signal of the image sensor ().

Optoelectronic detection of objects by measurement of angular position to determine relative movement of a deflection unit

A method of monitoring a hazardous zone () and a safe optoelectronic distance sensor () for monitoring a hazardous zone () at a movable machine part () having a protected zone (), wherein the safe distance sensor () is arranged at the movable machine part (), wherein a tool () is arranged at the movable machine part (), wherein a plurality of distance sensors () are arranged in a modular manner and wherein the protected zone () is adapted to the tool ().

Distance sensor

An optoelectronic sensor for the distance measurement of objects () in a monitored zone () using a time of flight method, having a light receiver () for receiving light from the monitored zone () and for outputting received signals (), and having an evaluation unit () for determining the time of flight from the received signals (), wherein the light receiver () is an image sensor () having a plurality of light reception elements () which are arranged in a planar manner in a matrix, wherein a first optical element () is arranged in front of at least one light reception element (), with the first optical element () having a filter element () of a filter array (), wherein at least respective first filter elements () and at least respective second filter elements () have different optical attenuations and/or the first optical element () has a lens () of a fly's eye optics (), with the fly's eye optics () having a plurality of lenses (), with a respective lens () being associated with at least one respective light reception element ().

Optoelectronic sensor

A light scanner in accordance with the principle of the time of flight having at least one light transmitter () which transmits consecutive light pulses () into a measured zone () and having at least one light receiver () which receives the light pulses () reflected at an object () in the measured zone () and supplies them in the form of received electrical signals to a control and evaluation unit () which determines a distance signal representative of the distance () of the object () from the light scanner () while taking account of the speed of light between the transmission and reception of the light pulse (), wherein the light receiver () has at least one single photon avalanche diode ().

Light scanner

A light grid in accordance with the time of flight principle having at least one light transmitter () which transmits light signals () into a measured zone () and having at least one light receiver () which receives the light signals () reflected from the measured zone () and supplies them in the form of received electrical signals to a control and evaluation unit () which determines a distance signal representative of the distance () of objects () from the light grid () from the time between the transmission and the reception of the light signal () while taking account of the speed of light, with the light receiver () having at least one single photon avalanche diode ().

Light grid

A laser scanner () detects and determines distances of objects comprises a light transmitter transmitting light in a plurality of consecutive individual pulses. A rotatable deflection unit () for the periodical deflection of the transmission light beam () into the monitoring zone () and an angular measurement unit () generates angular position signals () in dependence on an angular position of the deflection unit (). An evaluation unit () identifies a received pulse associated with an object from a histogram () taken from a histogram memory () to determine the distance of the object by means of a light propagation method. The histogram () is collected over a time interval which is associated with the angular position signal (). In this connection at least two histogram memories () are provided in order to collect a first histogram and a second histogram in overlapping time intervals.

Optoelectronic sensor and method for the detection and determination of distances of objects

An optoelectronic sensor () for the detection and distance determination of objects in a monitored area () transmits a transmission light beam (), generates a reception signal from remitted transmission light (), and determines an object distance from a light time of flight. A reception path between light receiver () and evaluation unit () is divided into a first and a second partial reception path () at a splitter element () comprising filtering properties to pass higher frequency parts of the reception signal on to the first partial reception path () and lower frequency parts on to the second partial reception path (). An object's distance is determined from the first and an opacity from the second partial reception signal.

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Waldkirch, Germany

Jörg Sigmund