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公开(公告)号：US20230032609A1
公开(公告)日：2023-02-02
申请号：US17872614
申请日：2022-07-25
Applicant: SICK AG
Inventor： Siegfried RINGWALD
Abstract: An optoelectronic sensor in accordance with the principle of triangulation 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 spatially resolving light receiver and a reception optics associated with the light receiver in a reception path for receiving the light beam remitted by the object, as well as a control and evaluation unit that is configured to evaluate a received signal of the light receiver. The sensor furthermore has an optical metaelement having a metasurface and/or a metamaterial in the reception path.
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Patent Agency Ranking
公开(公告)号：US20210173051A1
公开(公告)日：2021-06-10
申请号：US17111322
申请日：2020-12-03
Applicant: SICK AG
Inventor： Siegfried RINGWALD
IPC: G01S7/481 , G01S17/894 , G01S7/495 , G01S17/10
Abstract: An optoelectronic sensor for detecting an object in a monitored zone having at least one light source for transmitting transmitted light, a light receiver having a reception optics arranged upstream for generating received signals from light beams remitted at the object, and a control and evaluation unit for acquiring information on the object from the received signals has a beam splitter arrangement arranged downstream of the light source for splitting the transmitted light into a plurality of transmitted light beams separated from one another, wherein the beam splitter arrangement includes a plurality of switchable beam splitters for splitting the transmitted light.
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公开(公告)号：US20230067699A1
公开(公告)日：2023-03-02
申请号：US17823228
申请日：2022-08-30
Applicant: SICK AG
Inventor： Christoph MENZEL , Siegfried RINGWALD , Kai WASLOWSKI
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.
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公开(公告)号：US20250078382A1
公开(公告)日：2025-03-06
申请号：US18819858
申请日：2024-08-29
Applicant: SICK AG
Inventor： Denise BERTZ , Katharina BLEICHER , Siegfried RINGWALD , Jens EDHAMMER , Anders MURHED
IPC: G06T15/00 , G02B13/10 , G06V10/141
Abstract: A camera for recording 3D image data using a light sectioning process is provided that has an illumination unit to project a light pattern in a focal plane, an image sensor having a plurality of light reception elements in an image plane, a reception optics upstream of the image sensor and having an objective plane, and a control and evaluation unit that is configured to generate the 3D image data by evaluating the light pattern in a recording of the image sensor, wherein the image plane is tilted with respect to the focal plane. In this respect, the reception optics has at least one metaelement here that compensates an oblique light incidence on the light reception elements.
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公开(公告)号：US20210072388A1
公开(公告)日：2021-03-11
申请号：US17015921
申请日：2020-09-09
Applicant: SICK AG
Inventor： Christoph MENZEL , Siegfried RINGWALD
Abstract: An optoelectronic sensor for detecting objects in a monitored zone that has a light receiver having a reception optics arranged in front of it for generating a received signal from received light that impinges the sensor in a direction of incidence of light from the monitored zone, wherein the reception optics comprises a flat light guide plate having a first main surface and a lateral edge bounding the first main surface at a side; wherein the first main surface of the light guide plate is arranged transversely to the direction of incidence of light and has a diffractive structure to deflect the incident received light to the lateral edge; and wherein a control and evaluation unit is provided to evaluate the received signal.
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公开(公告)号：US20190277688A1
公开(公告)日：2019-09-12
申请号：US16298139
申请日：2019-03-11
Applicant: SICK AG
Inventor： Siegfried RINGWALD , Christoph MENZEL
Abstract: An optoelectronic sensor is provided for detecting objects in a monitored zone that has a light receiver having a reception optics arranged in front of it for generating a received signal from received light that is incident on the sensor in a direction of incidence of light from the monitored zone, wherein the reception optics comprises a flat light guide plate having a first main surface and a lateral edge bounding the first main surface at a side; and wherein the first main surface of the light guide plate is arranged transversely to the direction of incidence of light and deflects the incident received light to the lateral edge. The light guide plate here has a diffractive structure for deflection to the lateral edge.
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