Patents Assigned to Keyence Corporation
  • Publication number: 20200043157
    Abstract: To facilitate setting of a parameter at the time of generating an inspection image from an image acquired by using a photometric stereo principle. A photometric processing part generates an inspection image based on a plurality of luminance images acquired by a camera. A display control part and a display part switch and display the luminance image and the inspection image, or simultaneously display these images. An inspection tool setting part adjusts a control parameter of the camera and a control parameter of an illumination apparatus. Further, when the control parameter is adjusted, the display control part updates the image being displayed on the display part to an image where the control parameter after the change has been reflected.
    Type: Application
    Filed: October 3, 2019
    Publication date: February 6, 2020
    Applicant: Keyence Corporation
    Inventor: Daisuke Ando
  • Patent number: 10515249
    Abstract: [Object] To enhance accuracy at the time of setting with consideration of a cell size of a code when an exposure time is automatically set. [Means to solve the problems] An upper limit of an exposure time of an imaging part as a restriction condition for reading a code attached to a workpiece is calculated based on a moving speed of the workpiece, which is inputted by an input part, and a cell size, which is calculated by a cell size calculation part. An exposure time of the imaging part is set within the restriction condition by analyzing a plurality of images, which includes a code and is obtained by taking images multiple times by changing the exposure time of the imaging part.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 24, 2019
    Assignee: Keyence Corporation
    Inventors: Hidezumi Nagata, Taichi Tajika, Hiroomi Ohori, Taiga Nomi
  • Patent number: 10515446
    Abstract: The image inspection device includes a reference height setting part configured to set a reference height as a reference of vibration component estimation, a vibration estimation part configured to estimate a vibration component in an inspection environment, based on the two-dimensional profile generated by the two-dimensional profile generation part and the reference height set by the reference height setting part, a profile correction part configured to remove, from the two-dimensional profile, the vibration component estimated by the vibration estimation part, a three-dimensional data generation part configured to generate three-dimensional data of the inspection object from a plurality of the two-dimensional profiles from which the vibration component is removed by the profile correction part, and an inspection part configured to conduct outer appearance inspection of the inspection object, based on the three-dimensional data generated by the three-dimensional data generation part.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: December 24, 2019
    Assignee: Keyence Corporation
    Inventor: Norimasa Mayumi
  • Patent number: 10508994
    Abstract: An image inspection apparatus includes an illuminating section for irradiating illumination light, a line camera in which a plurality of imaging elements are arrayed to be linearly arranged, the line camera receiving the light irradiated from the illuminating section and reflected on the inspection target object, a display section for displaying an image captured by the line camera, an optical axis adjusting section for adjusting an optical axis of the line camera, a trigger setting section for specifying a trigger that specifies timing when the inspection target object is imaged by the line camera, an aspect ratio adjusting section for adjusting longitudinal and lateral pixel resolutions of the image captured by the line camera, and a display control section for displaying the optical axis adjusting section, the trigger setting section, and the aspect ratio adjusting section on the display section in order.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: December 17, 2019
    Assignee: Keyence Corporation
    Inventor: Daisuke Ando
  • Patent number: 10508995
    Abstract: The three-dimensional image inspection device includes a composed image generation part configured to compose first three-dimensional data and second three-dimensional data, and generate a three-dimensional composed image having information in a height direction, a composition mode selection part configured to enable a first composition mode and a second composition mode to be selected, the first composition mode being a mode in which the three-dimensional composed image is generated, based on the three-dimensional data measured by both a first light projecting/receiving part and a second light projecting/receiving part with respect to respective pixels configuring the three-dimensional composed image, and the second composition mode being a mode in which the three-dimensional composed image is generated, based on the three-dimensional data measured by any one or both of the first light projecting/receiving part and the second light projecting/receiving part with respect to the respective pixels.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: December 17, 2019
    Assignee: Keyence Corporation
    Inventor: Norimasa Mayumi
  • Patent number: 10508902
    Abstract: A three-dimensional measurement device which is capable of increasing the operability at the time of repeatedly performing dimension measurement for a plurality of measurement target objects having substantially the same shape is provided. There are included a template storage unit for storing, as a template, model three-dimensional shape data and an operation procedure of dimension measurement performed on the model three-dimensional shape image, and a positional relationship specification unit for specifying a relative positional relationship between the model three-dimensional shape data and measurement three-dimensional shape data. The geometric element extraction unit specifies a geometric element of a measurement three-dimensional shape based on the relative positional relationship and the template, and the dimension value calculation unit performs dimension measurement on the measurement three-dimensional shape based on the relative positional relationship and the template.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: December 17, 2019
    Assignee: Keyence Corporation
    Inventors: Jun Tabuchi, Takashi Nakatsukasa
  • Patent number: 10497142
    Abstract: To provide a shape measuring device capable of quickly and accurately acquiring a measurement value of a desired part of a measuring object. A specifying section 32 sets, on the basis of a relative positional relation between the first region in the measurement luminance image and a second region in the reference luminance image, a measurement target region corresponding to the reference target region in the measurement height image. A calculating section 33 calculates, on the basis of measurement height image data, a measurement value concerning height of the measuring object in the measurement target region.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: December 3, 2019
    Assignee: Keyence Corporation
    Inventor: Yohei Okawa
  • Publication number: 20190360796
    Abstract: Optical axes of lens units of measurement heads are adjusted so as to be parallel to each other. The lens unit includes a diffraction lens. When adjusting the optical axis, in a state where the measurement heads face each other with a reference member interposed therebetween, light having a plurality of wavelengths are emitted from the measurement heads to one surface and the other surface of the reference member, respectively. Intensities of primary light having one wavelength, which are reflected by one surface and the other surface of the reference member respectively, and incident on the measurement heads through each of a path of a multi-order light having other wavelengths are displayed on a main display unit as information indicating a degree of orthogonality of the optical axes of the measurement heads with respect to the one surface and the other surface of the reference member.
    Type: Application
    Filed: March 26, 2019
    Publication date: November 28, 2019
    Applicant: Keyence Corporation
    Inventors: Suketaka Fujimoto, Hideto Takei, Yohei Masuguchi, Shoma Kuga
  • Patent number: 10489900
    Abstract: To facilitate setting of a parameter at the time of generating an inspection image from an image acquired by using a photometric stereo principle. A photometric processing part generates an inspection image based on a plurality of luminance images acquired by a camera. A display control part and a display part switch and display the luminance image and the inspection image, or simultaneously display these images. An inspection tool setting part adjusts a control parameter of the camera and a control parameter of an illumination apparatus. Further, when the control parameter is adjusted, the display control part updates the image being displayed on the display part to an image where the control parameter after the change has been reflected.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: November 26, 2019
    Assignee: Keyence Corporation
    Inventor: Daisuke Ando
  • Patent number: 10473455
    Abstract: To provide a confocal displacement sensor capable of reducing a measurement error. Light having a plurality of wavelengths is emitted by a light processing section 120. A chromatic aberration along an optical axis direction is caused by a lens unit 220 in the light emitted by the light projecting section 120. The light having the chromatic aberration converged and irradiated on a measurement object S by the lens unit 220. In the light irradiated on the measurement object S by the lens unit 220, light having a wavelength reflected while focusing on the surface of the measurement object S passes through a plurality of pinholes. Displacement of the measurement object S is calculated by an arithmetic processing section 150 on the basis of signal intensity for each wavelength of an average signal corresponding to an average of intensities for each wavelength concerning a plurality of lights passed through the plurality of pinholes.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: November 12, 2019
    Assignee: Keyence Corporation
    Inventor: Shoma Kuga
  • Patent number: 10466042
    Abstract: To provide a shape measuring device that enables a user to easily grasp a rough surface shape of a desired surface of a measurement object. A plurality of designated points are designated on a reference image RI. Light is irradiated on a plurality of portions of the measurement object corresponding to the plurality of designated points. Deviations of a plurality of portions with respect to an approximate plane are calculated. A deviation image is generated on the basis of the deviations. In the deviation image, the deviations of the plurality of portions of the measurement object respectively corresponding to the plurality of designated points are displayed.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 5, 2019
    Assignee: Keyence Corporation
    Inventor: Hiroyuki Satoyoshi
  • Publication number: 20190323830
    Abstract: A shape measuring device includes a stereoscopic-shape-data generating section 212 configured to generate stereoscopic shape data indicating a shape of the measurement object with a pattern projection method, a measurement-setting automatically adjusting section 217 configured to automatically adjust measurement setting for the partial regions on the basis of at least one of stereoscopic shape data of the partial regions and light reception data acquired in the partial regions when the stereoscopic shape data is generated, and a stereoscopic-shape-data coupling section 219 configured to couple, according to the measurement setting for the partial regions adjusted by a measurement setting adjusting section, the stereoscopic shape data of the partial regions generated again by the stereoscopic-shape-data generating section 212 and generate coupled stereoscopic shape data corresponding to the coupled region.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 24, 2019
    Applicant: Keyence Corporation
    Inventor: Shinya Takahashi
  • Publication number: 20190323831
    Abstract: A shape measuring device 100 includes a control section 200 for executing determination processing for determining an unmeasured region having height information is present outside a depth measurement range, which is a height range in which pattern light can be irradiated from a light projecting section, focal-position changing processing for controlling an optical-axis-direction driving section to change a focal position of a light receiving section when it is determined by the determination processing that the unmeasured region is present, and synthesis processing for generating synthesized stereoscopic shape data obtained by combining a plurality of stereoscopic shape data generated by automatically repeating the stereoscopic-shape-data acquisition processing, the determination processing, and the focal-position-changing processing until it is determined by the determination processing that the unmeasured region is absent or a predetermined end condition is satisfied.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 24, 2019
    Applicant: Keyence Corporation
    Inventors: Kazuki Natori, Masaki Fujiwara
  • Publication number: 20190323829
    Abstract: A shape measuring device includes an optical-axis-direction driving section configured to minutely relatively displace a stage in an optical axis direction of a light receiving section with respect to a light projecting section and the light receiving section such that a phase of a projection pattern on the stage is shifted at a minute pitch finer than width of the phase of the projection pattern projected on the stage, the minute pitch being defined by controlling light projecting elements of a pattern generating section.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 24, 2019
    Applicant: Keyence Corporation
    Inventors: Tsuyoshi Suenaga, Masaki Fujiwara
  • Publication number: 20190316381
    Abstract: To realize both toughness and size reduction of a safety switch. A safety switch is a safety switch into and from which a bolt of an actuator is inserted and pulled out. The safety switch includes a casing having a shape elongated along a first direction, a metal head having a receiving space for receiving the bolt of the actuator and provided on a first end side of the casing in the first direction, a detector for detecting a first state in which the bolt is received in the receiving space, a lock mechanism, a switching device and a first attachment portion provided in the head and having a first attachment hole into which a first attachment member is inserted.
    Type: Application
    Filed: February 8, 2019
    Publication date: October 17, 2019
    Applicant: Keyence Corporation
    Inventors: Choryon Oh, Yu Babasaki, Lye Tatt Cheah
  • Publication number: 20190316405
    Abstract: To improve toughness of a non-contact type safety door switch. A safety switch includes a metallic casing integrated as a first part of an enclosure, having an opening in a front side, a cover integrated as a front part of the enclosure, covering the opening, the cover having a surface as a front surface of the enclosure, a wireless means, a determination means, an output means, circuit substrates provided inside the metallic casing and the cover, on which the wireless means, the determination means and the output means are mounted, and attachment holes on a side surface of the metallic casing, the side surface being adjacent to the front surface of the enclosure for attaching the casing.
    Type: Application
    Filed: February 8, 2019
    Publication date: October 17, 2019
    Applicant: Keyence Corporation
    Inventors: Hiroshi Kashima, Lye Tatt Cheah
  • Patent number: 10438459
    Abstract: A photoelectric sensor includes a connecting section for light projection to which a light propagation member for light projection optically coupled to a light emitting element is connected, a connecting section for light reception to which a light propagation member for light reception optically coupled to the light receiving element is connected, a signal generating unit configured to compare a light reception signal generated by the light receiving element and a threshold and generate a detection signal indicating a result of the comparison, a first light emitting element for indication optically coupled to the connecting section for light reception, and a mounting substrate on which each of the first light emitting element for indication and the light receiving element is positioned in the connecting section for light reception or one of the first light emitting element for indication and the light receiving element is positioned via the other.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: October 8, 2019
    Assignee: KEYENCE CORPORATION
    Inventor: Shinichiro Otsu
  • Publication number: 20190293409
    Abstract: Based on a plurality of first pattern images, a first angle image with each pixel having irradiation angle information of first measuring pattern lights on the measurement object is generated, and based on a plurality of second pattern images, a second angle image with each pixel having irradiation angle information of second measuring pattern lights on the measurement object is generated. In accordance with the irradiation angle information of each pixel in the first angle image, the irradiation angle information of each pixel in the second angle image, and relative position information of a first light projection unit and a second light projection unit, the height of the measurement object in a direction of a central axis of a lighting device is measured.
    Type: Application
    Filed: January 11, 2019
    Publication date: September 26, 2019
    Applicant: Keyence Corporation
    Inventors: Hajime Matsuda, Masashi Nakao
  • Patent number: 10422986
    Abstract: An emitting section of a light projecting section is provided to surround an optical axis of an objective lens of a lens unit. The optical axis of the emitting section is substantially the same as the optical axis of the objective lens. Ring illumination is irradiated on the observation target from the emitting section and light from the observation target is received by an imaging section via the objective lens, whereby first original image data is generated. Directional illumination is irradiated on the observation target from the emitting section and the light from the observation target is received by the imaging section via the objective lens, whereby second original image data is generated. Image data for display indicating an image of the observation target that should be obtained when it is assumed that light in a specific emitting direction is irradiated on the observation target is generated.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 24, 2019
    Assignee: KEYENCE CORPORATION
    Inventors: Masahiro Inomata, Shingo Matsumura
  • Patent number: 10424058
    Abstract: An image processing sensor includes an image registering unit configured to register a non-defective product image, a defective product image, and a background image, a differential-image generating unit configured to generate a first differential image from the non-defective product image and the background image and generate a second differential image from the defective product image and the background image; a matching-degree calculating unit configured to calculate a matching degree indicating a degree of feature matching of the second differential image with respect to a model image corresponding to the first differential image, and a threshold calculating unit configured to calculate, on the basis of the matching degree, a threshold used in an operation mode.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: September 24, 2019
    Assignee: Keyence Corporation
    Inventor: Hiroshi Sagisaka