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公开(公告)号：US10701275B1
公开(公告)日：2020-06-30
申请号：US16167314
申请日：2018-10-22
Applicant: Cognex Corporation
Inventor： Laurens Nunnink , Esther Oteo Lozano , Richard Reuter , Matthew D. Engle
Abstract: This invention provides a single-camera vision system, typically for use in logistics applications, that allows for adjustment of the camera viewing angle to accommodate a wide range of object heights and associated widths moving relative to an imaged scene with constant magnification. The camera assembly employs an image sensor that is more particularly suited to such applications, with an aspect (height-to-width) ratio of approximately 1:4 to 1:8. The camera assembly includes a distance sensor to determine the distance to the top of each object. The camera assembly employs a zoom lens that can change at relatively high speed (e.g.
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公开(公告)号：US20160033750A1
公开(公告)日：2016-02-04
申请号：US14680143
申请日：2015-04-07
Applicant: Cognex Corporation
Inventor： Laurens Nunnink , Carl Gerst , William Equitz , Matthew D. Engle
CPC classification number: G02B17/023 , G02B17/06 , G02B26/105 , G02B26/12 , G02B27/1066 , G02B27/14 , G02B27/143 , G03B17/565 , G06K7/10603
Abstract: This invention provides a field of view expander (FOVE) removably attached to a vision system camera having an image sensor defining an image plane. In an embodiment the FOVE includes first and second mirrors that transmit light from a scene in respective first and second partial fields of view along first and second optical axes. Third and fourth mirrors respectively receive reflected light from the first and second mirrors. The third and fourth mirrors reflect the received light onto the image plane in a first strip and a second strip adjacent to the first strip. The first and second optical axes are approximately parallel and a first focused optical path length between the scene and the image plane and a second focused optical path between the image plane and the scene are approximately equal in length. The optical path can be rotated at a right angle in embodiments.
Abstract translation: 本发明提供了一种可拆卸地附接到具有定义图像平面的图像传感器的视觉系统相机的视野展开器（FOVE）。 在一个实施例中，FOVE包括第一和第二反射镜，其在沿着第一和第二光轴的相应的第一和第二部分视场中从场景发射光。 第三和第四反射镜分别接收来自第一和第二反射镜的反射光。 第三和第四反射镜将接收到的光在第一条带和与第一条带相邻的第二条带上将图像平面反射到图像平面上。 第一和第二光轴近似平行，并且场景与图像平面之间的第一聚焦光路长度和图像平面与场景之间的第二聚焦光路的长度近似相等。 在实施例中，光路可以以直角旋转。
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Patent Agency Ranking
公开(公告)号：US11966810B2
公开(公告)日：2024-04-23
申请号：US16669603
申请日：2019-10-31
Applicant: Cognex Corporation
Inventor： Laurens Nunnink , Bennet Heidekorn , Jens Ruetten , Martijn Lambertus Peter Visser , Carl W. Gerst, III , William Equitz , Matthew D. Engle
IPC: G06K7/10 , G02B17/02 , G02B17/06 , G02B26/10 , G02B26/12 , G02B27/10 , G02B27/14 , G06V10/141 , G06V10/147 , G06V30/224 , H04N23/00 , G03B17/56
CPC classification number: G06K7/10732 , G02B17/023 , G02B17/06 , G02B26/105 , G02B26/12 , G02B27/1066 , G02B27/14 , G02B27/143 , G06K7/10603 , G06K7/10722 , G06V10/141 , G06V10/147 , G06V30/2247 , H04N23/00 , G03B17/565
Abstract: This invention provides a system for separating a field of view (FOV) of a scene imaged by a vision system camera assembly, in which a separating mirror assembly redirects a first optical path of at least a first optics with respect to at least a first image sensor in the camera assembly. A first reflecting assembly redirects the first optical path from the separating mirror toward a first FOV. The first optical path is extended free of splitting the image. The separating mirror assembly redirects a second optical path of a second optics with respect to a second image sensor in the camera assembly. A second reflecting assembly redirects the second optical path from the separating mirror toward a second FOV. The second optical path is extended free of splitting the image projected from the scene on the second image sensor.
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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：US20200160012A1
公开(公告)日：2020-05-21
申请号：US16669603
申请日：2019-10-31
Applicant: Cognex Corporation
Inventor： Laurens Nunnink , Bennet Heidekorn , Jens Ruetten , Martijn Lambertus Peter Visser , Carl W. Gerst, III , William Equitz , Matthew D. Engle
Abstract: This invention provides a system for separating a field of view (FOV) of a scene imaged by a vision system camera assembly, in which a separating mirror assembly redirects a first optical path of at least a first optics with respect to at least a first image sensor in the camera assembly. A first reflecting assembly redirects the first optical path from the separating mirror toward a first FOV. The first optical path is extended free of splitting the image. The separating mirror assembly redirects a second optical path of a second optics with respect to a second image sensor in the camera assembly. A second reflecting assembly redirects the second optical path from the separating mirror toward a second FOV. The second optical path is extended free of splitting the image projected from the scene on the second image sensor.
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公开(公告)号：US09892298B2
公开(公告)日：2018-02-13
申请号：US14887290
申请日：2015-10-19
Applicant: Cognex Corporation
Inventor： Laurens Nunnink , Carl W. Gerst, III , William Equitz , Matthew D. Engle
IPC: G02B26/08 , G06K7/10 , G02B17/02 , G02B17/06 , G02B26/10 , G02B26/12 , G02B27/14 , H04N5/225 , G02B27/10 , G03B17/56
CPC classification number: G06K7/10722 , G02B17/023 , G02B17/06 , G02B26/105 , G02B26/12 , G02B27/1066 , G02B27/14 , G02B27/143 , G03B17/565 , G06K7/10603 , H04N5/225
Abstract: This invention provides a field of view expander (FOVE) removably attached to a vision system camera having an image sensor defining an image plane. In an embodiment the FOVE includes first and second mirrors that transmit light from a scene in respective first and second partial fields of view along first and second optical axes. Third and fourth mirrors respectively receive reflected light from the first and second mirrors. The third and fourth mirrors reflect the received light onto the image plane in a first strip and a second strip adjacent to the first strip. The first and second optical axes are approximately parallel and a first focused optical path length between the scene and the image plane and a second focused optical path between the image plane and the scene are approximately equal in length. The optical path can be rotated at a right angle in embodiments.
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公开(公告)号：US20160188936A1
公开(公告)日：2016-06-30
申请号：US14887290
申请日：2015-10-19
Applicant: Cognex Corporation
Inventor： Laurens Nunnink , Carl W. Gerst, III , William Equitz , Matthew D. Engle
CPC classification number: G06K7/10722 , G02B17/023 , G02B17/06 , G02B26/105 , G02B26/12 , G02B27/1066 , G02B27/14 , G02B27/143 , G03B17/565 , G06K7/10603 , H04N5/225
Abstract: This invention provides a field of view expander (FOVE) removably attached to a vision system camera having an image sensor defining an image plane. In an embodiment the FOVE includes first and second mirrors that transmit light from a scene in respective first and second partial fields of view along first and second optical axes. Third and fourth mirrors respectively receive reflected light from the first and second mirrors. The third and fourth mirrors reflect the received light onto the image plane in a first strip and a second strip adjacent to the first strip. The first and second optical axes are approximately parallel and a first focused optical path length between the scene and the image plane and a second focused optical path between the image plane and the scene are approximately equal in length. The optical path can be rotated at a right angle in embodiments.
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