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No. Publication Number Title Publication/Patent Number Publication/Patent Number Publication Date Publication Date
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1 US2020166327A1
SHAPE MEASUREMENT SYSTEM, PROBE TIP UNIT, AND SHAPE MEASUREMENT METHOD
Publication/Patent Number: US2020166327A1 Publication Date: 2020-05-28 Application Number: 16/694,390 Filing Date: 2019-11-25 Inventor: Hariyama tatsuo   Watanabe, Masahiro   Taniguchi, Atsushi   Maruno, Kenji   Assignee: HITACHI, LTD.   IPC: G01B9/02 Abstract: Provided is a shape measurement system in order to perform three-dimensional measurement corresponding to a measurement object having various shapes, which includes a measurement probe, a probe tip unit, and a calculation unit. The probe tip unit includes an optical element that is configured to irradiate an object with measurement light, a fixing mechanism that is configured to fix to the measurement probe so as to be detachable and replaceable, and a cylindrical unit that is configured to lock the optical element and is provided with the fixing mechanism.
2 US202041259A1
Distance Measuring Device and Three-Dimensional Shape Measuring Apparatus
Publication/Patent Number: US202041259A1 Publication Date: 2020-02-06 Application Number: 20/181,648 Filing Date: 2018-05-22 Inventor: Watanabe, Masahiro   Taniguchi, Atsushi   Hariyama tatsuo   Maruno, Kenji   Assignee: Hitachi, Ltd.   IPC: G01C3/08 Abstract: An object is to provide a technology capable of realizing miniaturizing of a measurement unit in a distance measuring device. The distance measuring device including a light emitting unit that outputs measurement light, a polarization state control unit that controls polarization of the measurement light output from the light emitting unit, and an optical path switching element that selectively emits the measurement light controlled by the polarization state control unit, in which the polarization state control unit controls the polarization so as to emit the measurement light in a plurality of directions from the optical path switching element, and the optical path switching element receives reflected light with respect to an object of the measurement light emitted from the optical path switching element, the reflected light being used to measure a distance to the object.
3 US2020041259A1
Distance Measuring Device and Three-Dimensional Shape Measuring Apparatus
Publication/Patent Number: US2020041259A1 Publication Date: 2020-02-06 Application Number: 16/484,844 Filing Date: 2018-05-22 Inventor: Watanabe, Masahiro   Hariyama tatsuo   Taniguchi, Atsushi   Maruno, Kenji   Assignee: Hitachi, Ltd.   IPC: G01B11/24 Abstract: An object is to provide a technology capable of realizing miniaturizing of a measurement unit in a distance measuring device. The distance measuring device including a light emitting unit that outputs measurement light, a polarization state control unit that controls polarization of the measurement light output from the light emitting unit, and an optical path switching element that selectively emits the measurement light controlled by the polarization state control unit, in which the polarization state control unit controls the polarization so as to emit the measurement light in a plurality of directions from the optical path switching element, and the optical path switching element receives reflected light with respect to an object of the measurement light emitted from the optical path switching element, the reflected light being used to measure a distance to the object.
4 US202018823A1
DISTANCE MEASURING DEVICE, DISTANCE MEASURING METHOD, AND THREE-DIMENSIONAL SHAPE MEASURING APPARATUS
Publication/Patent Number: US202018823A1 Publication Date: 2020-01-16 Application Number: 20/191,650 Filing Date: 2019-07-10 Inventor: Watanabe, Masahiro   Taniguchi, Atsushi   Urano, Yuta   Hariyama tatsuo   Maruno, Kenji   Assignee: Hitachi, Ltd.   IPC: G02B27/28 Abstract: A distance measuring device includes a light emitting unit that outputs a measurement light, a first polarization state control unit that controls a polarization state of the measurement light output from the light emitting unit, a second polarization state control unit that controls the polarization state of the measurement light of which a polarization state is controlled by the first polarization state control unit, and an optical path switching element that selects an emission direction of the measurement light of which a polarization state is controlled by the second polarization state control unit, in which the second polarization state control unit controls the polarization state of the measurement light so that the measurement lights are emitted from the optical path switching element in a plurality of the emission directions, and the optical path switching element receives a reflected light obtained by reflecting the emitted measurement light by an object.
5 CA3048558A1
DISTANCE MEASURING DEVICE, DISTANCE MEASURING METHOD, AND THREE-DIMENSIONAL SHAPE MEASURING APPARATUS
Publication/Patent Number: CA3048558A1 Publication Date: 2020-01-11 Application Number: 3048558 Filing Date: 2019-07-04 Inventor: Watanabe, Masahiro   Taniguchi, Atsushi   Urano, Yuta   Hariyama tatsuo   Maruno, Kenji   Assignee: Hitachi, Ltd.   IPC: G01S17/89 Abstract: To measure a distance of a narrow portion. A distance measuring device includes a light emitting unit that outputs a measurement light, a first polarization state control unit that controls a polarization state of the measurement light output from the light emitting unit, a second polarization state control unit that controls the polarization state of the measurement light of which a polarization state is controlled by the first polarization state control unit, and an optical path switching element that selects an emission direction of the measurement light of which a polarization state is controlled by the second polarization state control unit, in which the second polarization state control unit controls the polarization state of the measurement light so that the measurement lights are emitted from the optical path switching element in a plurality of the emission directions, and the optical path switching element receives a reflected light obtained by reflecting the emitted measurement light by an object.
6 US2020018823A1
DISTANCE MEASURING DEVICE, DISTANCE MEASURING METHOD, AND THREE-DIMENSIONAL SHAPE MEASURING APPARATUS
Publication/Patent Number: US2020018823A1 Publication Date: 2020-01-16 Application Number: 16/507,124 Filing Date: 2019-07-10 Inventor: Maruno, Kenji   Watanabe, Masahiro   Urano, Yuta   Hariyama tatsuo   Taniguchi, Atsushi   Assignee: HITACHI, LTD.   IPC: G01S7/484 Abstract: A distance measuring device includes a light emitting unit that outputs a measurement light, a first polarization state control unit that controls a polarization state of the measurement light output from the light emitting unit, a second polarization state control unit that controls the polarization state of the measurement light of which a polarization state is controlled by the first polarization state control unit, and an optical path switching element that selects an emission direction of the measurement light of which a polarization state is controlled by the second polarization state control unit, in which the second polarization state control unit controls the polarization state of the measurement light so that the measurement lights are emitted from the optical path switching element in a plurality of the emission directions, and the optical path switching element receives a reflected light obtained by reflecting the emitted measurement light by an object.
7 US10436572B2
Three-dimensional shape measuring apparatus, three-dimensional shape measuring probe
Publication/Patent Number: US10436572B2 Publication Date: 2019-10-08 Application Number: 15/747,789 Filing Date: 2016-03-30 Inventor: Watanabe, Masahiro   Hariyama tatsuo   Kobayashi, Masayuki   Assignee: Hitachi, Ltd.   IPC: G01B11/00 Abstract: An object of the present invention is to provide a compact and highly-accurate three-dimensional shape measurement apparatus. The three-dimensional shape measurement apparatus according to the present invention causes a part of a measurement light to proceed in a direction which is different from a direction with respect to a subject as an angle measurement light, and detects a rotation angle using the angle measurement light.
8 US2019011249A1
Three-Dimensional Shape Measuring Apparatus, Three-Dimensional Shape Measuring Probe
Publication/Patent Number: US2019011249A1 Publication Date: 2019-01-10 Application Number: 15/747,789 Filing Date: 2016-03-30 Inventor: Watanabe, Masahiro   Hariyama tatsuo   Kobayashi, Masayuki   Assignee: Hitachi, Ltd.   IPC: G01B9/02 Abstract: An object of the present invention is to provide a compact and highly-accurate three-dimensional shape measurement apparatus. The three-dimensional shape measurement apparatus according to the present invention causes a part of a measurement light to proceed in a direction which is different from a direction with respect to a subject as an angle measurement light, and detects a rotation angle using the angle measurement light.
9 JP6513846B2
DISTANCE MEASURING DEVICE, AND THREE-DIMENSIONAL SHAPE MEASURING DEVICE
Publication/Patent Number: JP6513846B2 Publication Date: 2019-05-15 Application Number: 2018046769 Filing Date: 2018-03-14 Inventor: Taniguchi, Atsushi   Watanabe, Masahiro   Hariyama tatsuo   Maruno, Kenji   Assignee: HITACHI LTD   IPC: G01B11/24 Abstract: To provide a technique capable of achieving miniaturization of a measurement part in a distance measurement device.SOLUTION: A distance measuring device includes: a light emission part for outputting measurement light; a polarization state control part for controlling polarized light of the measurement light outputted from the light emission part; and an optical path switching element for selectively emitting the measurement light controlled by the polarization state control part. The polarization state control part controls the polarized light in such a manner that the measurement light is emitted to a plurality of directions from the optical path switching element. The optical path switching element is a reflection light used for measuring a distance up to an object, and takes in the reflection light for the object of the measurement light emitted from the optical path switching element.SELECTED DRAWING: Figure 1
10 JP2019105662A
DISTANCE MEASURING APPARATUS AND THREE-DIMENSIONAL SHAPE MEASURING APPARATUS
Publication/Patent Number: JP2019105662A Publication Date: 2019-06-27 Application Number: 2019073934 Filing Date: 2019-04-09 Inventor: Taniguchi, Atsushi   Watanabe, Masahiro   Hariyama tatsuo   Maruno, Kenji   Assignee: HITACHI LTD   IPC: G01B11/24 Abstract: To provide a technique capable of miniaturizing a measurement unit in a distance measuring apparatus.SOLUTION: A distance measuring apparatus comprises a measurement probe and a measurement probe tip part. The measurement probe includes a polarization state control section for controlling polarization of measurement light emitted to the measurement probe tip part, and a rotation mechanism for rotating the measurement probe tip part. The measurement probe tip part has an optical path switching element. The optical path switching element switches a direction for emitting the measurement light to the outside of the measurement probe tip part on the basis of the polarization of the measurement light and takes in the measurement light which has been reflected or scattered on an object.SELECTED DRAWING: Figure 1
11 JP2019184462A
WATER LEAKAGE INSPECTION SYSTEM AND WATER LEAKAGE INSPECTION METHOD
Publication/Patent Number: JP2019184462A Publication Date: 2019-10-24 Application Number: 2018076925 Filing Date: 2018-04-12 Inventor: Yamamoto, Tetsuya   Sato, Manabu   Nishino, Shuji   Nomura, Katsumi   Tateyama, Takuya   Takahara, Yoichi   Yanase, Seiji   Shibuya, Hisae   Hariyama tatsuo   Kawakazu, Masato   Assignee: HITACHI GLOBAL LIFE SOLUTIONS INC   IPC: G01M3/38 Abstract: To provide an effective detection method of water leakage from an object to be tested.SOLUTION: A water leakage inspection system 1 includes a visible light imaging apparatus 20 for obtaining a visible light image of the surface of the object to be inspected 5 and the surface of its inner piping in which water is housed at a plurality of timings; a pretreatment apparatus for promoting drying of the surface of the object to be inspected 5 and the surface of its internal piping; a far-infrared imaging apparatus 50 for obtaining a far-infrared image of the surface and the surface of the internal piping of the object to be inspected 5 promoted in drying; and an image processing apparatus 200. The image processing apparatus 200 comprises: a water droplet determination unit for determining the presence or absence of water droplets going down the surface of the object to be inspected 5 or the surface of its internal piping or falling from to be inspected 5 based on the obtained plurality of visible light images; and a residual moisture determination unit for determining the presence or absence of moisture remaining on the surface of the object to be inspected 5 determined to be free of water droplets or the surface of its internal pipping based the far-infrared image.SELECTED DRAWING: Figure 1
12 US2018224548A1
Distance Measuring Apparatus, Distance Measuring Method, and Shape Measuring Apparatus
Publication/Patent Number: US2018224548A1 Publication Date: 2018-08-09 Application Number: 15/751,318 Filing Date: 2016-04-26 Inventor: Watanabe, Masahiro   Hariyama tatsuo   Assignee: Hitachi ,Ltd.   IPC: G01S7/491 Abstract: The present disclosure discloses a distance measuring apparatus that enables measuring a distance of a target object with high accuracy. The distance measuring apparatus includes a light source unit that emits a plurality of light beams having different wavelengths, an irradiation optical element that irradiates a measurement target with the emitted light beams, a light receiving unit that receives the light reflected by the measurement target, and a processor that calculates the distance from the light source to the measurement target from the signal detected by the light receiving element. Then, the processor executes frequency calculation processing of calculating a peak frequency corresponding to each wavelength from the signal detected by the light receiving unit and distance calculation processing of reducing the Doppler shift errors caused by the oscillation of the measurement target from the peak frequency corresponding to each wavelength to calculate the distance.
13 WO2018225496A1
DISTANCE MEASUREMENT DEVICE AND THREE-DIMENSIONAL-SHAPE MEASUREMENT DEVICE
Publication/Patent Number: WO2018225496A1 Publication Date: 2018-12-13 Application Number: 2018019625 Filing Date: 2018-05-22 Inventor: Watanabe, Masahiro   Hariyama tatsuo   Maruno, Kenji   Taniguchi, Atsushi   Assignee: HITACHI, LTD.   IPC: G01C3/06 Abstract: The purpose of the present invention is to provide a feature with which it is possible to reduce the size of a measurement part in a distance measurement device. This distance measurement device is characterized in that: there are provided a light-emitting unit that outputs measurement light, a polarization state control unit that controls the polarization of the measurement light outputted from the light-emitting unit, and an optical path switching element that selectively radiates the measurement light controlled by the polarization state control unit; the polarization state control unit controls the polarization so that the measurement light is radiated toward a plurality of directions from the optical path switching element; and the optical path switching element takes in light reflected by an object due to the measurement light radiated from the optical path switching element, the reflected light being used in measuring the distance to the object.
14 CA3053315A1
DISTANCE MEASURING DEVICE AND THREE-DIMENSIONAL SHAPE MEASURING APPARATUS
Publication/Patent Number: CA3053315A1 Publication Date: 2018-12-13 Application Number: 3053315 Filing Date: 2018-05-22 Inventor: Watanabe, Masahiro   Taniguchi, Atsushi   Hariyama tatsuo   Maruno, Kenji   Assignee: Hitachi, Ltd.   IPC: G01C3/06 Abstract: The purpose of the present invention is to provide a feature with which it is possible to reduce the size of a measurement part in a distance measurement device. This distance measurement device is characterized in that: there are provided a light-emitting unit that outputs measurement light, a polarization state control unit that controls the polarization of the measurement light outputted from the light-emitting unit, and an optical path switching element that selectively radiates the measurement light controlled by the polarization state control unit; the polarization state control unit controls the polarization so that the measurement light is radiated toward a plurality of directions from the optical path switching element; and the optical path switching element takes in light reflected by an object due to the measurement light radiated from the optical path switching element, the reflected light being used in measuring the distance to the object.
15 JP2018205301A
DISTANCE MEASURING DEVICE, AND THREE-DIMENSIONAL SHAPE MEASURING DEVICE
Publication/Patent Number: JP2018205301A Publication Date: 2018-12-27 Application Number: 2018046769 Filing Date: 2018-03-14 Inventor: Taniguchi, Atsushi   Watanabe, Masahiro   Hariyama tatsuo   Maruno, Kenji   Assignee: HITACHI LTD   IPC: G01B11/24 Abstract: To provide a technique capable of achieving miniaturization of a measurement part in a distance measurement device.SOLUTION: A distance measuring device includes: a light emission part for outputting measurement light; a polarization state control part for controlling polarized light of the measurement light outputted from the light emission part; and an optical path switching element for selectively emitting the measurement light controlled by the polarization state control part. The polarization state control part controls the polarized light in such a manner that the measurement light is emitted to a plurality of directions from the optical path switching element. The optical path switching element is a reflection light used for measuring a distance up to an object, and takes in the reflection light for the object of the measurement light emitted from the optical path switching element.SELECTED DRAWING: Figure 1
16 DE112016003116T5
Vorrichtung zur Messung einer dreidimensionalen Form und Sonde zur Messung einer dreidimensionalen Form
Title (English): Device for measuring three-dimensional shape and measuring three-dimensional shape of a detecto
Publication/Patent Number: DE112016003116T5 Publication Date: 2018-04-26 Application Number: 112016003116 Filing Date: 2016-03-30 Inventor: Watanabe, Masahiro   Kobayashi, Masayuki   Hariyama tatsuo   Assignee: Hitachi, Ltd.   IPC: G01N21/17 Abstract: Eine Aufgabe der vorliegenden Erfindung besteht darin, eine kompakte und sehr genaue Vorrichtung zur Messung einer dreidimensionalen Form bereitzustellen. Die Vorrichtung zur Messung einer dreidimensionalen Form gemäß der vorliegenden Erfindung veranlasst, dass ein Teil des Messlichts als Winkelmesslicht in eine von einer Richtung in Bezug auf ein Objekt verschiedene Richtung läuft, und sie detektiert den Drehwinkel unter Verwendung des Winkelmesslichts (siehe).
17 WO2017187510A1
DISTANCE MEASUREMENT DEVICE
Publication/Patent Number: WO2017187510A1 Publication Date: 2017-11-02 Application Number: 2016063054 Filing Date: 2016-04-26 Inventor: Watanabe, Masahiro   Hariyama tatsuo   Assignee: Hitachi, Ltd.   IPC: G01B9/02 Abstract: The present disclosure pertains to a distance measurement device with which it is possible to highly accurately measure the distance to a physical object. The distance measurement device is provided with a light source unit for emitting a plurality of lights of differing wavelengths
18 US9541380B2
Shape measuring method and device
Publication/Patent Number: US9541380B2 Publication Date: 2017-01-10 Application Number: 14/433,000 Filing Date: 2013-10-02 Inventor: Kasai, Hiroaki   Hariyama tatsuo   Watanabe, Masahiro   Assignee: Hitachi, Ltd.   IPC: G01B11/02 Abstract: The purpose of the present invention is to provide a shape inspection device that improves, without making the device larger, durability and measurement precision by measuring a plurality of points with a single distance sensor. The present invention provides a shape measuring device that measures the shape of an object to be measured and that comprises: a distance sensor that calculates the distance to the object to be measure by irradiating a measurement light toward the object to be measured and detecting the reflected light from the object to be measured; a separating unit that separates the measurement light from the distance sensor into a plurality of measurement light rays to be irradiated onto a plurality of measuring points; and a selecting unit that selects, from the plurality of measurement light beams separated by the separating unit, the measurement light to irradiate the object to be measured.
19 JP6169339B2
SHAPE MEASURING METHOD AND SHAPE MEASURING DEVICE
Publication/Patent Number: JP6169339B2 Publication Date: 2017-07-26 Application Number: 2012221808 Filing Date: 2012-10-04 Inventor: Watanabe, Masahiro   Kasai, Hiroaki   Hariyama tatsuo   Assignee: HITACHI LTD   IPC: G01B11/24 Abstract: PROBLEM TO BE SOLVED: To provide a shape measuring device which achieves the avoidance of increase in size and the improvement of durability and measurement accuracy by measuring a number of points with one distance sensor.SOLUTION: A shape measuring device which measures a shape of a measured object includes: a distance sensor 0 which applies a measuring beam to the measured object
20 WO2017168628A1
THREE-DIMENSIONAL-SHAPE MEASUREMENT DEVICE AND THREE-DIMENSIONAL-SHAPE MEASUREMENT PROBE
Publication/Patent Number: WO2017168628A1 Publication Date: 2017-10-05 Application Number: 2016060373 Filing Date: 2016-03-30 Inventor: Kobayashi, Masayuki   Watanabe, Masahiro   Hariyama tatsuo   Assignee: Hitachi, Ltd.   IPC: G01B11/24 Abstract: The purpose of the present invention is to provide a three-dimensional-shape measurement device which is compact and has high precision. The three-dimensional-shape measurement device pertaining to the present invention causes a portion of measurement light to propagate as angle measurement light in a direction different from the direction of the measurement light with respect to an object