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公开(公告)号：US10564265B2
公开(公告)日：2020-02-18
申请号：US15713841
申请日：2017-09-25
Applicant: Topcon Corporation
Inventor： Takahiro Inoue , Satoshi Yanobe , Hideyuki Matsumoto , Fumio Ohtomo
Abstract: A measurement device and measurement method are provided which are capable of measuring the inclination of a measurement target object surface both with a simple configuration and at high speed. The measurement device includes: a rangefinding light emitting section; a rangefinding unit configured to receive reflected rangefinding light; an optical axis deflection section provided on an optical path common to rangefinding light and reflected rangefinding light, and configured to deflect optical axes thereof; a motor configured to cause the optical axis deflection section to rotate; an emission direction detection unit configured to detect a deflection angle and deflection direction resulting from the optical axis deflection section; and a computation controller that measures the inclination of a measurement target object surface with respect to the emission optical axis on the basis of acquired coordinate data on the measurement target object surface.
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公开(公告)号：US10534075B2
公开(公告)日：2020-01-14
申请号：US15097745
申请日：2016-04-13
Applicant: TOPCON Corporation
Inventor： Hideyuki Matsumoto , Yasushi Tanaka , Shoji Hayashi , Takaaki Saito
Abstract: The invention provides a three-dimensional surveying instrument, which comprises a light emitter for emitting a distance measuring light, a light projecting optical unit for irradiating a distance measuring light from the light emitter along a distance measuring optical axis, a light receiving optical unit for receiving a reflection light from an object to be measured, a photodetection element for converting the reflection light as focused at the light receiving optical unit to an electric signal, a scanning unit for scanning a distance measuring light with respect to the object to be measured provided on a frame unit, angle detecting units for detecting an irradiating direction of the distance measuring light as scanned by the scanning unit, a vibration detecting unit for detecting vibration amount of the frame unit, and a control arithmetic unit having a storage unit where a threshold value is stored, wherein the control arithmetic unit controls so that the number of rotations of the scanning unit is gradually increased from low rotation number to the maximum rotation number, stores in the storage unit by associating the number of rotations with vibration amount as detected, compares vibration amount corresponding to the number of rotations as calculated based on measurement conditions with the threshold value, and performs measurement on the object to be measured in a case where it is judged that vibration amount corresponding to the number of rotations as calculated is lower than the threshold value.
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公开(公告)号：US20180038690A1
公开(公告)日：2018-02-08
申请号：US15658779
申请日：2017-07-25
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Hideyuki Matsumoto , Kazuki Osaragi , Takahiro Inoue
CPC classification number: G01C15/002 , G01B11/002 , G01D5/3473 , G01S7/4817 , G01S17/08 , G01S17/42 , G01S17/46 , G02B5/04 , G02B27/20 , H02K7/085
Abstract: The invention provides a laser beam projecting unit in which a hollow rotation shaft is provided on a fixed portion via one bearing, a rotor of an axial gap-type motor is provided on one end portion of the rotation shaft, a stator of the axial gap-type motor is provided on the fixed portion so as to confront the rotor, an attracting force between the rotor and the stator acts on the bearing as a pressurization, an angle detector for detecting a rotation angle of the rotation shaft is provided on the other end portion of the rotation shaft, a deflection optical component is provided inside the rotation shaft, and a laser beam is projected through the deflection optical component.
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Patent Agency Ranking
公开(公告)号：US10215561B2
公开(公告)日：2019-02-26
申请号：US15407804
申请日：2017-01-17
Applicant: TOPCON CORPORATION
Inventor： Homare Momiyama , Akinobu Sugiura , Hideyuki Matsumoto
Abstract: A method of designing a container of a liquid reflection inclination sensor includes a liquid surface calculating step (S1) that calculates a shape of a liquid surface of a liquid in a horizontal direction “x” and a vertical direction “y” by utilizing the Young-Laplace formula and the hydrostatic pressure formula, the liquid surface formed on a plate extending vertically and infinitely with respect to a horizontal part of the liquid surface, an optical simulation step (S2) that obtains a light receiving pattern by reflecting a dark field pattern (4′) irradiated from an imaginary light source (2′) on an imaginary mirror plane (9a′) having the shape of the liquid surface, and a container adjusting step (S3-S4) that adjusts a shape of a cylindrical container (10) for enclosing the liquid by judging whether image accuracy of the light receiving pattern satisfies demanded sensor accuracy.
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公开(公告)号：US11035936B2
公开(公告)日：2021-06-15
申请号：US16019794
申请日：2018-06-27
Applicant: TOPCON CORPORATION
Inventor： Hideyuki Matsumoto , Fumio Ohtomo
Abstract: A deflecting device and a surveying instrument for deflecting an optical axis two-dimensionally comprising a ring-shaped holding member; ring gears disposed on both sides of the holding member with the holding member interposed between the ring gears and concentric with the holding member; rotary bearings disposed between the holding member and the ring gears on both sides of the holding member and concentric with the holding member; optical deflecting members disposed at central portions of the ring gears and integrated with the ring gears; deflection motors corresponding to the respective ring gears; a drive transmitting member configured to transmit rotary force of the deflection motors to the ring gears; and urging members configured to urge the ring gears in a direction parallel with rotation axes of the ring gears.
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公开(公告)号：US11029154B2
公开(公告)日：2021-06-08
申请号：US15975049
申请日：2018-05-09
Applicant: TOPCON CORPORATION
Inventor： Hideyuki Matsumoto , Fumio Ohtomo , Kaoru Kumagai
Abstract: A deflecting device and surveying instrument comprising a holding member having a ring shape; ring gears disposed on both sides of the holding member with the holding member interposed the ring gears, the ring gears being concentric with the holding member; bearings disposed between the holding member and the ring gears on both sides of the holding member, the bearings being concentric with the holding member; optical deflecting members disposed at central portions of the ring gears and integrated with the ring gears; deflection motors corresponding to the respective ring gears; and a drive transmitting member configured to transmit rotary force of the deflection motors to the ring gears.
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公开(公告)号：US10578433B2
公开(公告)日：2020-03-03
申请号：US15718647
申请日：2017-09-28
Applicant: TOPCON CORPORATION
Inventor： Satoshi Yanobe , Hideyuki Matsumoto
Abstract: To eliminate influences of unnecessary reflected light other than a liquid surface in a liquid surface reflection type inclination sensor. In order to attain the object described above, an inclination sensor includes a liquid that forms a liquid surface, an illumination section, a barcode pattern to be illuminated by the illumination section, an optical system that projects the barcode pattern on the liquid surface, a light receiving element that detects the barcode pattern, a storage section that stores a detection image when the liquid surface is removed from an optical path of the optical system, and an arithmetic section that calculates an inclination angle by subtracting the detection image when the liquid surface is removed from a detection image when the liquid surface is present on the optical path of the optical system.
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8.发明申请公开(公告)号：US20160320473A1
公开(公告)日：2016-11-03
申请号：US15097745
申请日：2016-04-13
Applicant: TOPCON Corporation
Inventor： Hideyuki Matsumoto , Yasushi Tanaka , Shoji Hayashi , Takaaki Saito
Abstract: The invention provides a three-dimensional surveying instrument, which comprises a light emitter for emitting a distance measuring light, a light projecting optical unit for irradiating a distance measuring light from the light emitter along a distance measuring optical axis, a light receiving optical unit for receiving a reflection light from an object to be measured, a photodetection element for converting the reflection light as focused at the light receiving optical unit to an electric signal, a scanning unit for scanning a distance measuring light with respect to the object to be measured provided on a frame unit, angle detecting units for detecting an irradiating direction of the distance measuring light as scanned by the scanning unit, a vibration detecting unit for detecting vibration amount of the frame unit, and a control arithmetic unit having a storage unit where a threshold value is stored, wherein the control arithmetic unit controls so that the number of rotations of the scanning unit is gradually increased from low rotation number to the maximum rotation number, stores in the storage unit by associating the number of rotations with vibration amount as detected, compares vibration amount corresponding to the number of rotations as calculated based on measurement conditions with the threshold value, and performs measurement on the object to be measured in a case where it is judged that vibration amount corresponding to the number of rotations as calculated is lower than the threshold value.
Abstract translation: 本发明提供了一种三维测量仪器，其包括用于发射距离测量光的发光体，用于沿距离测量光轴照射来自发光体的距离测量光的投光光学单元;光接收光学单元，用于 接收来自待测物体的反射光，将聚光在光接收光学单元上的反射光转换为电信号的光电检测元件，用于扫描距离测量光的扫描单元，该扫描单元相对于待测量对象被提供， 在框架单元上，用于检测由扫描单元扫描的距离测量光的照射方向的角度检测单元，用于检测帧单元的振动量的振动检测单元，以及具有存储单元的控制运算单元，其中阈值 存储值，其中控制算术单元控制使得该数值的转数 扫描单元从低旋转数逐渐增加到最大旋转数，通过将旋转数与检测到的振动量相关联来存储在存储单元中，将与基于测量条件计算的旋转次数相对应的振动量与阈值 值，并且在判断为与计算出的转数对应的振动量低于阈值的情况下，对待测量对象进行测量。
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