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151.发明授权公开(公告)号：US10225457B1
公开(公告)日：2019-03-05
申请号：US15696680
申请日：2017-09-06
Applicant: Mitutoyo Corporation
Inventor： Isaiah Freerksen , Paul Gerard Gladnick
Abstract: A method is provided for operating an imaging system to maintain a tunable acoustic gradient (TAG) lens at a desired operating state. In a first step, the TAG lens operates using a standard imaging drive control configuration (e.g., a standard drive voltage and duration) during a plurality of imaging drive mode time periods, to achieve a standard imaging state of the TAG lens. In a second step, the TAG lens operates using a regulating adaptive drive control configuration during a plurality of regulating adaptive drive mode time periods, wherein at least one of a different respective TAG lens drive voltage and a different respective TAG lens drive duration is used for different respective regulating adaptive drive mode time periods, based on a monitoring signal that is indicative of a difference between the standard imaging state and a current operating state of the TAG lens.
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152.发明申请公开(公告)号：US20190064089A1
公开(公告)日：2019-02-28
申请号：US16040779
申请日：2018-07-20
Applicant: MITUTOYO CORPORATION
Inventor： Yuichiro YOKOYAMA , Takeshi HAGINO
Abstract: A coefficient-of-thermal-expansion measuring device includes: a temperature detector detecting an object's temperature; an optical interferometer measuring an object's length using single-wavelength light; an actual data acquiring unit changing the object's temperature to temperatures and acquiring actual data of the length measured by the optical interferometer at each temperature; a data set generating unit generating pieces of verification data for each actual data by setting an order of interference within a predetermined range, selecting one piece of verification data at each temperature, and generating data sets each containing the selected piece of verification data, the data sets having different combinations of selection of the pieces of verification data; and a judging unit calculating a linear approximation function for each data set, and judging, using an evaluation index value based on differences of the verification data in each data set from the linear approximation function, applicability of each data set.
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153.发明申请公开(公告)号：US20190049229A1
公开(公告)日：2019-02-14
申请号：US16052109
申请日：2018-08-01
Applicant: MITUTOYO CORPORATION
Inventor： Yoshiyuki OMORI
Abstract: A threaded shaft measuring device includes a table that supports a threaded shaft to be measured, and that is capable of adjusting a rotation position about a perpendicular Z axis, adjusting a rotation position about an X axis that is horizontal and intersects with the Z axis, and adjusting a position in a Y axis direction that is horizontal and intersects with the X axis; and a stylus that performs scanning measurement of a surface of the threaded shaft. An adjustment jig capable of making contact with the threaded shaft and an elevator that brings the adjustment jig into contact with the threaded shaft are installed on the table. The adjustment jig includes an abutting bottom surface; an abutting side surface; a measurement surface; and an axis line marker that enables a tilt relative to the X axis to be detected.
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公开(公告)号：US20190041187A1
公开(公告)日：2019-02-07
申请号：US16049130
申请日：2018-07-30
Applicant: MITUTOYO CORPORATION
Inventor： Shimpei MATSUURA
CPC classification number: G01B9/02072 , G01B9/02011 , G01B9/02081 , G01B9/02083 , G01B11/2441 , G01B2290/70 , G02B27/283
Abstract: An optical system includes a polarized light phase shift optical circuit that includes a polarizing beam splitter that splits light having a coherence length shorter than a difference in optical path length between a normal optical path and a delay optical path having an optical path length longer than the normal optical path, the light being split into normal light, which travels along the normal optical path, and delay light, which travels along the delay optical path; a separator where the normal light and the delay light are individually emitted at a reference flat and the separator divides the reflected light that reflects off the reference flat into a plurality of light beams; and a plurality of image capture elements that respectively detect the intensities of the plurality of divided light beams, and the optical system also includes an information processor that includes a calibrator.
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公开(公告)号：US10197375B2
公开(公告)日：2019-02-05
申请号：US15427576
申请日：2017-02-08
Applicant: MITUTOYO CORPORATION
Inventor： Hisayoshi Sakai
Abstract: A probe head of a three-dimensional coordinate measuring device according to an embodiment of the present invention includes a measurer, a first and second diaphragm, a first oscillator, and a second oscillator. The measurer extends in a first direction. The first and second diaphragms are provided at two different positions on the measurer, at a first position and a second position, respectively, and support the measurer such that the measurer is capable of displacement in a first direction. The first oscillator causes the measurer to oscillate along the first direction. The second oscillator causes a predetermined portion of the measurer between the first and second diaphragms to oscillate along each of a second direction orthogonal to the first direction, and a third direction orthogonal to both the first and second directions.
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Patent Agency Ranking
公开(公告)号：US20180372480A1
公开(公告)日：2018-12-27
申请号：US16013467
申请日：2018-06-20
Applicant: MITUTOYO CORPORATION
Inventor： Kazuhiko HIDAKA , Satoshi YOSHITANI
CPC classification number: G01B11/005 , G01B21/042 , G01B21/047 , G06F21/73
Abstract: A coordinate measuring unit includes a measuring probe and a processing device configured to compute the shape coordinates of an object to be measured on the basis of an output of the measuring probe. The measuring probe has a first identification code. The processing device includes a first determination portion configured to determine whether the first identification code outputted from the measuring probe is matched with a matching code, and a downstream determination portion configured to identify a second identification code outputted from the measuring probe to thereby recognize the measuring probe when the first identification code is matched with the matching code in the first determination portion and the measuring probe further has the second identification code. The coordinate measuring unit with the aforementioned configuration can efficiently recognize a number of measuring probes.
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公开(公告)号：US20180372473A1
公开(公告)日：2018-12-27
申请号：US16013275
申请日：2018-06-20
Applicant: MITUTOYO CORPORATION
Inventor： Shinsaku ABE
Abstract: A surface texture measuring device according to the present invention includes a surface texture detecting component that outputs measurement results for a surface texture of a measurable object, where the measurement results are recognized as a change in the movement of a contact pin of a detector when tracing a surface of the measurable object with the contact pin; a posture detecting sensor that detects a measured posture, which is a posture at the time of measurement by the detector; a memory component that is preloaded with correction values corresponding to each of a plurality of postures; and a correcting component that compares the measured posture with the plurality of postures stored in the memory component, and corrects the measurement results using a correction value that corresponds to a posture equivalent to the measured posture.
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公开(公告)号：US10161743B2
公开(公告)日：2018-12-25
申请号：US15460994
申请日：2017-03-16
Applicant: MITUTOYO CORPORATION
Inventor： Kazuhiko Hidaka , Sadayuki Matsumiya
IPC: G01B11/24
Abstract: A measuring probe for measuring a screw groove of a relatively movable ball screw includes a light source, an objective lens formed to correspond to the screw groove of the ball screw, arranged to be opposed to the screw groove of the ball screw in a non-contact manner, and configured to emit light from the light source to the screw groove of the ball screw, and a line sensor configured to detect an interference pattern generated by reflected light from the screw groove of the ball screw and reflected light on a surface of the objective lens. This enables high-accuracy measurement of a specified area of a shape of a side surface of a relatively movable work in a non-contact manner.
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公开(公告)号：US20180328706A1
公开(公告)日：2018-11-15
申请号：US15970275
申请日：2018-05-03
Applicant: MITUTOYO CORPORATION
Inventor： Hidetaka Yamamoto , Kentaro Nemoto , Tadashi Iwamoto
Abstract: A coordinate measuring machine includes a mount for a workpiece, an arched frame straddling the mount, a slider movable along the frame, and a probe supported by the slider and pointed at the mount. A rotor enables the mount and the frame to relatively rotate. An XY-motion mechanism enables the mount to move in a direction along a surface of the mount.
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公开(公告)号：US20180315207A1
公开(公告)日：2018-11-01
申请号：US15946146
申请日：2018-04-05
Applicant: MITUTOYO CORPORATION
Inventor： Johannes Anna Quaedackers
CPC classification number: G01B9/02076 , G01B9/02042 , G01B9/02071 , G01B9/02085 , G01B9/0209 , G01B21/045 , G02B21/002
Abstract: Method and system for calculating a height map of a surface of an object from an image stack in scanning optical 2.5D profiling of the surface by an optical system, a focal plane is scanned at different height positions with respect to the object surface. An image is captured at each height position of the focal plane to form the image stack. The scanning of the focal plane comprises long range sensing and short range sensing a displacement of the focal plane for sensing low and high spatial frequency components. The height position of the focal plane is estimated by combining the low and high spatial frequency components. A height position of each image in the image stack is calculated, based on the estimated height position of each respective focal plane. The images of the image stack are interpolated to equidistant height positions for obtaining a corrected image stack.
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