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公开(公告)号：US11647290B2
公开(公告)日：2023-05-09
申请号：US17071636
申请日：2020-10-15
申请人： COGNEX CORPORATION
IPC分类号： H04N5/232
CPC分类号： H04N5/23296 , H04N5/23218
摘要： Systems and methods are provided for acquiring images of objects using an imaging device and a controllable mirror. The controllable mirror can be controlled to change a field of view for the imaging device, including so as to acquire images of different locations, of different parts of an object, or with different degrees of zoom.
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公开(公告)号：US11416696B2
公开(公告)日：2022-08-16
申请号：US16851805
申请日：2020-04-17
申请人： Cognex Corporation
发明人： Zoltan Farkas , János Kállay , Saul Sanz Rodriguez , Kai Fluegge
摘要： A base station or handheld device can be equipped with a latch system or a multi-hinge arrangement for electrical contacts. The latch system can be adjustable between different latching configurations in which the base station and handheld device are retained together by different degrees. The multi-hinge arrangement can provide rotation about multiple axes to provide rolling contact between electrical contacts of the base station and the handheld device.
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公开(公告)号：US11790656B2
公开(公告)日：2023-10-17
申请号：US17359200
申请日：2021-06-25
申请人： COGNEX CORPORATION
CPC分类号： G06V20/52 , G02B26/0833 , G05D1/0094 , G05D1/0231 , G06V10/147 , G06V20/56 , G06V2201/07
摘要： A computer-implemented method for scanning a side of an object to identify a region of interest is provided. The method can include determining, using one or more computing devices, a distance between a side of an object and an imaging device, determining, using the one or more computing devices, a scanning pattern for an imaging device that includes a controllable mirror, based on the distance between the side of the object and the imaging device, moving a controllable mirror according to the scanning pattern to acquire, using the one or more computing device and the imaging device, a plurality of images of the side of the object, and identifying, using the one or more computing devices, the region of interest based on the plurality of images.
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公开(公告)号：US11665410B2
公开(公告)日：2023-05-30
申请号：US17195396
申请日：2021-03-08
申请人： COGNEX CORPORATION
CPC分类号： H04N23/45 , H04N23/51 , H04N23/54 , H04N23/55 , H04N23/695
摘要： A modular vision system that can include a housing with a faceplate and a first and second optical module mounted to the faceplate. Each of the first and second optical modules can include a mounting body, a rectangular image sensor, and an imaging lens that defines an optical axis and a field of view. The first optical module can be configured to be mounted to the faceplate in a first plurality of mounting orientations and the second optical module can be configured to be mounted to the faceplate in a second plurality of mounting orientations. The first and second optical modules can thus collectively provide a plurality of imaging configurations.
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公开(公告)号：US11003875B2
公开(公告)日：2021-05-11
申请号：US16177791
申请日：2018-11-01
申请人： Cognex Corporation
发明人： Jose Fernandez Dorado , Laurens Nunnink , Saul Sanz Rodriguez , Kai Fluegge , Yasin Salih Ciftci
IPC分类号： G06K7/10 , H04N5/225 , F21K9/60 , G02F1/1335
摘要： This provides an ID reader, typically configured for handheld operation, which integrates three types of illumination into a compact package that generates robust performance and resistance to harsh environmental conditions, such as dust and moisture. These illumination types include, direct (diffuse) light, low-angle light and polarized light. The ID reader includes a sealed reader module assembly having the illuminators in combination with an imager assembly (optics and image sensor) at its relative center. Additionally, also an on-axis aimer and a variable focus system with liquid lens have been integrated in this module and is placed on axis using a mirror assembly that includes a dichroic filter. As the optimal distance to read a code with low-angle light is typically shorter than the optimal distance to use the polarized illumination a variable (e.g. liquid) lens can adjust the focus of the reader to the optimal distance for the selected illumination.
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公开(公告)号：US20190018993A1
公开(公告)日：2019-01-17
申请号：US15455406
申请日：2017-03-10
申请人： Cognex Corporation
摘要： An image based code reader comprises an image sensor. The image sensor is configured to acquire an image of a code. Additionally, the image based code reader includes a lens configured to project an image scene including the code onto the image sensor, the lens comprising a variable optical power that controls a focus distance of the image based code reader. The image based code reader further includes a processor operatively coupled to the image sensor and the lens. The processor is configured to acquire the image of the code using only pixels located within a region of interest of the sensor, and a size of the region of interest is selected based on the focus distance of the reader.
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7.发明授权Component attachment devices and related systems and methods for machine vision systems 有权组件附件设备及相关的机器视觉系统系统和方法公开(公告)号：US09188839B2
公开(公告)日：2015-11-17
申请号：US13645371
申请日：2012-10-04
申请人： Cognex Corporation
CPC分类号： H04N5/2256 , G03B15/03 , G03B2215/056 , G03B2215/0567 , G03B2215/0575 , H04N5/2252 , H04N5/2254
摘要： In some aspects, camera systems can include a camera enclosure, a lens disposed in or along the camera enclosure along an optical axis of the camera system, and an optical accessory attached to camera enclosure, where the optical accessory is attached using a magnetic retention force that is provided by at least one magnetic element.
摘要翻译： 在某些方面，照相机系统可以包括相机外壳，沿照相机系统的光轴设置在相机外壳内或沿着相机外壳的光轴的透镜，以及附着到相机外壳的光学附件，其中光学附件使用磁力保持力 其由至少一个磁性元件提供。
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公开(公告)号：US11922261B2
公开(公告)日：2024-03-05
申请号：US16724634
申请日：2019-12-23
申请人： Cognex Corporation
CPC分类号： G06K7/10811 , G06K7/10 , G06K7/10722 , G06K7/10742 , G06K7/10831 , G06K7/10881 , G06K7/14 , G06K7/1478 , G06K19/06028
摘要： An image based code reader comprises an image sensor. The image sensor is configured to acquire an image of a code. Additionally, the image based code reader includes a lens configured to project an image scene including the code onto the image sensor, the lens comprising a variable optical power that controls a focus distance of the image based code reader. The image based code reader further includes a processor operatively coupled to the image sensor and the lens. The processor is configured to acquire the image of the code using only pixels located within a region of interest of the sensor, and a size of the region of interest is selected based on the focus distance of the reader.
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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
申请人： COGNEX CORPORATION
CPC分类号： G02B3/14 , G02B7/008 , G02B7/028 , G02B7/08 , G02B26/004
摘要： 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：US20230063329A1
公开(公告)日：2023-03-02
申请号：US17894848
申请日：2022-08-24
申请人： Cognex Corporation
发明人： Saul Sanz Rodriguez , Tony Depre , Jens Ruetten , Laurens Nunnink
摘要： A method for an imaging module can include rotating an imaging assembly that includes an imaging device about a first pivot point of a bracket to a select first orientation, fastening the imaging assembly to the bracket at the first orientation, rotating a mirror assembly that includes a mirror about a second pivot point of the bracket to a select second orientation, and fastening the mirror assembly to the bracket at the second orientation. An adjustable, selectively oriented imaging assembly of a first imaging module can acquire images using an adjustable, selectively oriented mirror assembly of a second imaging module.
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