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公开(公告)号：US11100301B2
公开(公告)日：2021-08-24
申请号：US16792644
申请日：2020-02-17
Applicant: COGNEX CORPORATION
Inventor： Esther Oteo , Laurens Nunnink , Matthew D. Engle , Carl W. Gerst, III
Abstract: The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.
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公开(公告)号：US20180060626A1
公开(公告)日：2018-03-01
申请号：US15246682
申请日：2016-08-25
Applicant: Cognex Corporation
Inventor： Esther Oteo , Laurens Nunnink , Matthew D Engle , Carl W Gerst, III
CPC classification number: G06K7/10831 , G02B17/008 , G02B27/0018 , G02B27/141 , G06K7/10722 , G06K7/10841 , G06K19/06046
Abstract: The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.
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公开(公告)号：US11681081B2
公开(公告)日：2023-06-20
申请号：US17475059
申请日：2021-09-14
Applicant: COGNEX CORPORATION
Inventor： Esther Oteo , Andreas Weber , Saul Sanz Rodriguez , Jens Ruetten , Pepe Fernandez-Dorado
CPC classification number: G02B3/14 , G02B7/008 , G02B7/028 , G02B7/08 , G02B26/004
Abstract: Systems and methods reduce temperature induced drift effects on a liquid lens used in a vision system. A feedback loop receives a temperature value from a temperature sensor, and based on the received temperature value, controls a power to the heating element based on a difference between the measured temperature of the liquid lens and a predetermined control temperature to maintain the temperature value within a predetermined control temperature range to reduce the effects of drift. A processor can also control a bias signal applied to the lens or a lens actuator to control temperature variations and the associated induced drift effects. An image sharpness can also be determined over a series of images, alone or in combination with controlling the temperature of the liquid lens, to adjust a focal distance of the lens.
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公开(公告)号：US20190138774A1
公开(公告)日：2019-05-09
申请号：US16005008
申请日：2018-06-11
Applicant: Cognex Corporation
Inventor： Esther Oteo , Laurens Nunnink , Matthew D. Engle , Carl W. Gerst
Abstract: The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.
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Patent Agency Ranking
公开(公告)号：US11301657B2
公开(公告)日：2022-04-12
申请号：US17117973
申请日：2020-12-10
Applicant: COGNEX CORPORATION
Inventor： Nicole Dippel , Esther Oteo , Laurens Nunnink , Carl W. Gerst , Matthew D. Engle
Abstract: The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.
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公开(公告)号：US20210097247A1
公开(公告)日：2021-04-01
申请号：US17117973
申请日：2020-12-10
Applicant: COGNEX CORPORATION
Inventor： Nicole Dippel , Esther Oteo , Laurens Nunnink , Carl W. Gerst , Matthew D. Engle
Abstract: The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.
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公开(公告)号：US20210405267A1
公开(公告)日：2021-12-30
申请号：US17475059
申请日：2021-09-14
Applicant: COGNEX CORPORATION
Inventor： Esther Oteo , Andreas Weber , Saul Sanz Rodriguez , Jens Ruetten , Pepe Fernandez-Dorado
Abstract: Systems and methods reduce temperature induced drift effects on a liquid lens used in a vision system. A feedback loop receives a temperature value from a temperature sensor, and based on the received temperature value, controls a power to the heating element based on a difference between the measured temperature of the liquid lens and a predetermined control temperature to maintain the temperature value within a predetermined control temperature range to reduce the effects of drift. A processor can also control a bias signal applied to the lens or a lens actuator to control temperature variations and the associated induced drift effects. An image sharpness can also be determined over a series of images, alone or in combination with controlling the temperature of the liquid lens, to adjust a focal distance of the lens.
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公开(公告)号：US10565413B2
公开(公告)日：2020-02-18
申请号：US16005008
申请日：2018-06-11
Applicant: Cognex Corporation
Inventor： Esther Oteo , Laurens Nunnink , Matthew D. Engle , Carl W. Gerst
Abstract: The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.
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公开(公告)号：US09996721B2
公开(公告)日：2018-06-12
申请号：US15246682
申请日：2016-08-25
Applicant: Cognex Corporation
Inventor： Esther Oteo , Laurens Nunnink , Matthew D Engle , Carl W Gerst, III
CPC classification number: G06K7/10831 , G02B17/008 , G02B27/0018 , G02B27/141 , G06K7/10722 , G06K7/10841 , G06K19/06046
Abstract: The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.
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