公开(公告)号：US09141838B2

公开(公告)日：2015-09-22

申请号：US14510403

申请日：2014-10-09

Applicant: SICK AG

Inventor： Sascha Steinkogler ,  Roland Gehring

IPC: G06K7/10 ,  G01V8/22

CPC classification number: G06K7/10811 ,  G01V8/22 ,  G06K7/10564 ,  G06K7/10613

Abstract: An optoelectronic sensor (100) for the detection of object information from a monitored zone (108) is provided, wherein the sensor (100) comprises a light transmitter (12) having an associated transmission optics (14) for the beam formation of a transmitted light beam (102, 20, 24) and for a limitation of its beam cross-section to a predefined diameter in a depth of field range; a light receiver (116) for the generation of a received signal from the reflected light beam (112); and a control and evaluation unit (118) for extracting object information from the received signal. In this connection, the transmission optics (14) has at least two optical part regions (18a-b) having different beam-forming properties and the optical part region (18a-b) which acts in a beam-forming manner with respect to the transmitted light beam (20, 24) can be set in order to vary the depth of field range.

Abstract translation: 提供了一种用于从被监视区域（108）检测物体信息的光电传感器（100），其中所述传感器（100）包括具有相关联的传输光学器件（14）的光发射器（12），用于所述传输 光束（102,20,24），并且用于将其光束横截面限制在景深范围内的预定直径; 用于从所述反射光束（112）产生接收信号的光接收器（116）; 以及用于从接收到的信号中提取对象信息的控制和评估单元（118）。 在这方面，传输光学器件（14）具有至少两个具有不同波束形成特性的光学部分区域（18a-b），并且光学部件区域（18a-b）以相对于 可以设置透射光束（20,24），以便改变景深范围。

公开(公告)号：US11353560B2

公开(公告)日：2022-06-07

申请号：US16196567

申请日：2018-11-20

Applicant: SICK AG

Inventor： Sascha Steinkogler ,  Florian Schneider ,  Helmut Weber ,  Stefan Seitz ,  Martin Högy

IPC: G01S7/481 ,  G06K7/10 ,  G02B5/10 ,  G02B26/12 ,  G02B5/09 ,  G01S7/48 ,  G01S7/4865 ,  G01S17/10 ,  G02B7/182 ,  G01S17/42

Abstract: A polygon scanner (10) for detecting objects (24) in a monitored zone (22) is provided having a light transmitter (12); having a light receiver (30); having an evaluation unit (32); and having a rotatable mirror unit (20) for a periodic deflection of the light beam (16) that has a plurality of mirror facets (34) in order thus to scan an angular section multiple times per rotation of the mirror unit (20) by a respective mirror facet (34), wherein at least some of the mirror facets (34) have a different curvature from one another. In this respect, at least one of the mirror facets (34) is configured as a free-form surface whose curvature is adapted to the angle of incidence of the transmitted light beam (16) on the mirror facet (34) that varies during the rotation of the mirror unit (20).

公开(公告)号：US11294037B2

公开(公告)日：2022-04-05

申请号：US16535426

申请日：2019-08-08

Applicant: SICK AG

Inventor： Sascha Steinkogler ,  Martin Marra ,  Klaus Clemens

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

Abstract: 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：US11480707B2

公开(公告)日：2022-10-25

申请号：US16262030

申请日：2019-01-30

Applicant: SICK AG

Inventor： Sascha Steinkogler ,  Roland Gehring ,  Konrad Winterer

IPC: G01V8/26 ,  G01S17/42 ,  G01S7/481 ,  G01S17/93 ,  G01S17/931

Abstract: An optoelectronic sensor for detecting objects in a monitored zone is provided, wherein the sensor has a scanning unit that is movable about an axis of rotation and that has a plurality of scanning modules accommodated therein for a periodic scanning of the monitored zone and for a generation of corresponding received signals and that has a control and evaluation unit for acquiring information on the objects from the received signals; and wherein the scanning modules each comprise a light transmitter for transmitting a light beam and a light receiver for generating a respective received signal from the light beam remitted by the objects. A respective mirror element is here associated with the scanning modules to set an angle of elevation of a respective scanning plane detected by a scanning module with respect to a central scanning plane perpendicular to the axis of rotation.