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1.发明授权公开(公告)号：US11105901B2
公开(公告)日：2021-08-31
申请号：US16202322
申请日：2018-11-28
Applicant: TOPCON Corporation
Inventor： Naoto Takahashi , Yasushi Tanaka
Abstract: Provided is a surveying instrument comprises a total station, a mounting base which is fixed on an upper surface of the total station at three points, and a two-dimensional laser scanner which is fixed on an upper surface of the mounting base at three points, wherein the total station is configured to perform a three-dimensional measurement of a measuring point by a first distance measuring light, wherein the two-dimensional laser scanner is configured to acquire point cloud data along a scanning line by a second distance measuring light.
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公开(公告)号：US10753739B2
公开(公告)日：2020-08-25
申请号：US16100682
申请日：2018-08-10
Applicant: TOPCON CORPORATION
Inventor： Yasuo Terashima , Yasushi Tanaka
IPC: G01C15/00 , F16C35/077 , F16C25/08
Abstract: A structure applies a pre-load to a rolling bearing, which makes pre-load control easier than heretofore and enables low cost production. A pre-load applying structure is configured to apply a pre-load to a bearing of a scanning part of a three-dimensional survey device. The three-dimensional survey device includes the bearing having an inner ring to which a vertically rotating shaft is fixed, a scanning mirror attached to the vertically rotating shaft, and a motor for rotationally driving the vertically driving shaft. The pre-load applying structure has a sleeve that engages with an outer ring of the bearing, a plate spring that detachably engages with the sleeve and is fastened to a housing body with a screw, and a ring that detachably join the sleeve and the plate spring. The plate spring applies the pre-load to the outer ring via the sleeve by elastic deforming.
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公开(公告)号：US10416291B2
公开(公告)日：2019-09-17
申请号：US15935138
申请日：2018-03-26
Applicant: TOPCON CORPORATION
Inventor： Hideki Morita , Ken'ichiro Yoshino , Yasushi Tanaka
Abstract: A three-dimensional measurement device includes a light source unit that emits distance measurement light, a projection light optical system that causes the distance measurement light, emitted by the light source unit, to be emitted along a distance measurement light axis, a light receiving optical unit that receives the reflected distance measurement light, a light receiving and splitting unit that splits the reflected distance measurement light that has transmitted through the light receiving optical unit into first reflected split light and second reflected split light, attenuates intensity of the second reflected split light to be lower than intensity of the first reflected split light, and converts the first reflected split light and the second reflected split light into electrical signals, and angle detection units that detect a light emitting direction of the distance measurement light.
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公开(公告)号：US20190170862A1
公开(公告)日：2019-06-06
申请号：US16202332
申请日：2018-11-28
Applicant: TOPCON Corporation
Inventor： Naoto Takahashi , Yasushi Tanaka
Abstract: A laser scanner comprising a main base, a distance measuring optical assembly for measuring a distance to the object to be measured, a rotation irradiating assembly for performing the rotary irradiation of the distance measuring light, a case which accommodates the distance measuring optical assembly and the rotation irradiating assembly, and an adapter, wherein a case includes a case frame, a left case, and a right case, the case frame includes a lower frame portion, the lower frame portion includes a left partition and a right partition, a liquid-tight space to accommodate the distance measuring optical assembly is formed when the left case is mounted, and the distance measuring optical assembly is exposed when the left case is removed, liquid-tight space to accommodate the rotation irradiating assembly is formed when the right case is mounted, and the rotation irradiating assembly is exposed when the right case is removed.
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公开(公告)号：US11181639B2
公开(公告)日：2021-11-23
申请号：US15936628
申请日：2018-03-27
Applicant: TOPCON CORPORATION
Inventor： Hideki Morita , Ken'ichiro Yoshino , Yasushi Tanaka
Abstract: Provided is a measurement device or the like that expands a dynamic range easily and promptly as appropriate even when three-dimensional data or the like on some parts of a measurement target object is not acquirable, so that the data can be acquired. A measurement device includes a light source unit that sequentially emits a plurality of beams of distance measurement light to an identical target object, based on predetermined fixed output information, a light reception unit that receives reflected light, from the target object, based on which the measurement device acquires measurement information, and an output value reducing unit and/or an input value reducing unit, the output value reducing unit reducing an output value of the light source unit, the input value reducing unit reducing an input value of the reflected light to the light reception unit.
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Patent Agency Ranking
公开(公告)号：US11733357B2
公开(公告)日：2023-08-22
申请号：US18050962
申请日：2022-10-28
Applicant: TOPCON CORPORATION
Inventor： Yasushi Tanaka , Takaaki Saito , Ken'ichiro Yoshino , Mitsuru Kanokogi
CPC classification number: G01S7/4817 , G01J3/108 , G01S7/497 , G01S17/10 , G01S17/42 , G01S17/89 , G01N2201/0697 , G01S7/4813
Abstract: A 3-dimensional measuring device includes: a light source unit; a projection optical system; a scanning mirror that is provided to be rotatable about a rotating shaft in a state of being inclined with respect to a shaft center of the rotating shaft to radiate a range-finding light within a plane crossing the rotating shaft in a rotary manner; a light-receiving optical system that receives a reflection range-finding light; a reference light optical system that is provided in a range outside a measuring range within a radiation range to receive and reflect the range-finding light as an internal reference light, the reference light optical system being capable of changing a light quantity of the internal reference light; and a light receiving element that receives the reflection range-finding light and the internal reference light.
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公开(公告)号：USD977999S1
公开(公告)日：2023-02-14
申请号：US29747903
申请日：2020-08-26
Applicant: TOPCON CORPORATION
Designer： Yasuhito Haijima , Yasushi Tanaka , Mitsuru Ogawa , Nobuyuki Nishita , Yoshiyuki Daibo
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公开(公告)号：US11486972B2
公开(公告)日：2022-11-01
申请号：US16202332
申请日：2018-11-28
Applicant: TOPCON Corporation
Inventor： Naoto Takahashi , Yasushi Tanaka
Abstract: A laser scanner comprising a main base, a distance measuring optical assembly for measuring a distance to the object to be measured, a rotation irradiating assembly for performing the rotary irradiation of the distance measuring light, a case which accommodates the distance measuring optical assembly and the rotation irradiating assembly, and an adapter, wherein a case includes a case frame, a left case, and a right case, the case frame includes a lower frame portion, the lower frame portion includes a left partition and a right partition, a liquid-tight space to accommodate the distance measuring optical assembly is formed when the left case is mounted, and the distance measuring optical assembly is exposed when the left case is removed, liquid-tight space to accommodate the rotation irradiating assembly is formed when the right case is mounted, and the rotation irradiating assembly is exposed when the right case is removed.
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公开(公告)号：US20180284281A1
公开(公告)日：2018-10-04
申请号：US15936628
申请日：2018-03-27
Applicant: TOPCON CORPORATION
Inventor： Hideki Morita , Ken'ichiro Yoshino , Yasushi Tanaka
Abstract: Provided is a measurement device or the like that expands a dynamic range easily and promptly as appropriate even when three-dimensional data or the like on some parts of a measurement target object is not acquirable, so that the data can be acquired. A measurement device includes a light source unit that sequentially emits a plurality of beams of distance measurement light to an identical target object, based on predetermined fixed output information, a light reception unit that receives reflected light, from the target object, based on which the measurement device acquires measurement information, and an output value reducing unit and/or an input value reducing unit, the output value reducing unit reducing an output value of the light source unit, the input value reducing unit reducing an input value of the reflected light to the light reception unit.
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10.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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