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公开(公告)号：US20200049487A1
公开(公告)日：2020-02-13
申请号：US16512462
申请日：2019-07-16
Applicant: Keyence Corporation
Inventor： Yoshitaka TSUCHIDA
Abstract: Reflected light from the measurement object is received by a plurality of pixel columns arranged in an X2 direction in a light receiving unit 121, and a plurality of light receiving amount distributions is output. One or a plurality of peak candidate positions of light receiving amounts in a Z2 direction is detected by a peak detection unit 1 for each pixel column based on the plurality of light receiving amount distributions. A peak position to be adopted to a profile is selected from the peak candidate positions detected for each pixel column based on a relative positional relationship with a peak position of another pixel column adjacent to the pixel column, and profile data indicating the profile is generated by the profile generation unit 3 based on the selected peak position.
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公开(公告)号：US10508902B2
公开(公告)日：2019-12-17
申请号：US15619557
申请日：2017-06-12
Applicant: Keyence Corporation
Inventor： Jun Tabuchi , Takashi Nakatsukasa
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.
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公开(公告)号：US10473455B2
公开(公告)日：2019-11-12
申请号：US16282333
申请日：2019-02-22
Applicant: Keyence Corporation
Inventor： Shoma Kuga
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.
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公开(公告)号：US10466042B2
公开(公告)日：2019-11-05
申请号：US16114264
申请日：2018-08-28
Applicant: Keyence Corporation
Inventor： Hiroyuki Satoyoshi
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.
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公开(公告)号：US20190323829A1
公开(公告)日：2019-10-24
申请号：US16355879
申请日：2019-03-18
Applicant: Keyence Corporation
Inventor： Tsuyoshi Suenaga , Masaki Fujiwara
IPC: G01B11/25
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.
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Patent Agency Ranking
公开(公告)号：US10424058B2
公开(公告)日：2019-09-24
申请号：US15585184
申请日：2017-05-03
Applicant: Keyence Corporation
Inventor： Hiroshi Sagisaka
IPC: G06T7/00 , G06T7/33 , G06K9/46 , G06K9/62 , H04N5/232 , H04N1/00 , H04N5/225 , H04N5/235 , H04N7/18 , H04N5/77 , H04N9/804
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.
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公开(公告)号：US20190285450A1
公开(公告)日：2019-09-19
申请号：US16268512
申请日：2019-02-06
Applicant: Keyence Corporation
Inventor： Shinichi Tsukigi , Yasunori Kawaguchi
Abstract: To provide a clamp-on type ultrasonic flow sensor capable of preventing deterioration in measurement accuracy of a flow rate due to deformation of a pipe. Elastic couplants CP1 and CP2 formed to surround the outer circumferential surface of a pipe are fixed while being pressed on the pipe P by fixing inner surfaces FS of two clamp members 131 and 132. An ultrasonic wave is propagated through the elastic couplants CP1 and CP2 and fluid in the pipe between a first ultrasonic element 101 and a second ultrasonic element 102. A cross section of the fixing inner surfaces FS of the clamp members 131 and 132 has a shape of a regular even-numbered polygonal shape centering on the axis of the pipe.
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公开(公告)号：US10416086B2
公开(公告)日：2019-09-17
申请号：US15925803
申请日：2018-03-20
Applicant: Keyence Corporation
Inventor： Manabu Kido
Abstract: The invention alleviates a burden on a user relating to an image inspection device based on photometric stereo and multi-spectral imaging. An illumination device 3 has three or more illumination blocks that irradiate a workpiece 2 with illumination beams from different directions, respectively. A camera 4 generates images of the workpiece 2. An image processing device 5 irradiates the workpieces 2 sequentially with illumination beams from light emitting elements of different lighting colors and generates a plurality of spectral images. The image processing device 5 sequentially turns on the three or more illumination blocks in units of blocks and generates a plurality of direction images. The image processing device 5 generates a color inspection image based on the plurality of spectral images and executes color inspection. The image processing device 5 generates a shape inspection image based on the plurality of direction images and executes shape inspection.
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公开(公告)号：US20190190228A1
公开(公告)日：2019-06-20
申请号：US16167557
申请日：2018-10-23
Applicant: Keyence Corporation
Inventor： Masao Sato , Tatsuaki Nagai
IPC: H01S3/11 , G02B26/10 , H01S3/042 , H01S3/08 , H01S3/091 , H01S3/0941 , H01S3/109 , H01S3/04 , H01S3/00 , H01S3/06 , H01S3/16 , B23K26/082 , B23K26/36
CPC classification number: H01S3/11 , B23K26/082 , B23K26/36 , G02B26/101 , H01S3/0071 , H01S3/0405 , H01S3/042 , H01S3/061 , H01S3/08013 , H01S3/0912 , H01S3/0941 , H01S3/109 , H01S3/1611 , H01S3/1673
Abstract: To appropriately change an output of laser light without deteriorating laser characteristics. A control section of a laser machining device controls, when a target output is larger than a predetermined threshold, an output of laser light by changing a driving current supplied to an excitation light source and, on the other hand, controls, when the target output is equal to or smaller than the threshold, the output of the laser light by changing a duty ratio of a Q switch while keeping the driving current supplied to the excitation light source substantially fixed.
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公开(公告)号：US20190184491A1
公开(公告)日：2019-06-20
申请号：US16167559
申请日：2018-10-23
Applicant: Keyence Corporation
Inventor： Mamoru Idaka , Masaki Saito , Hideki Yamakawa , Kazuyoshi Ogawa
IPC: B23K26/06 , H01S3/0941 , B23K26/082
CPC classification number: B23K26/0648 , B23K26/0665 , B23K26/082 , H01S3/0941
Abstract: To prevent an output decrease of laser light due to impurities that could be formed in a guide-light emitting device or an imaging device. A laser-light guiding section includes a transmission window section, an optical component disposed to cause an optical path of the UV laser light emitted from the laser-light output section and an optical path of transmitted light transmitted through the transmission window section to cross, and a sealing member in which the transmission window section is provided, the sealing member configuring a sealed space for airtightly housing the optical component. At least one of a guide-light emitting device configured to emit guide light for visualizing a scanning position of the UV laser light toward the transmission window section and an imaging device configured to receive light for imaging a workpiece via the transmission window section is disposed on the outer side of the sealed space.
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