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公开(公告)号：US11493611B2
公开(公告)日：2022-11-08
申请号：US16387692
申请日：2019-04-18
Applicant: TOPCON Corporation
Inventor： Noriyasu Kiryuu , Taizo Eno
Abstract: The invention provides a laser scanner, which comprises a light source unit, a light receiving unit, a distance measuring unit, an angle measuring unit, a telescope unit capable of rotating in a horizontal direction and a vertical direction, a rotation driving unit, a directional angle detector, and a control arithmetic unit, wherein the light source unit is an MOPA type and has an oscillator control circuit, a main oscillator, and an optical amplifier, wherein the oscillator control circuit has a repetition frequency setting component, a pulse peak output setting component, a pulse width setting component and an amplification factor calculating component and oscillates the main oscillator corresponding to a measured distance, and wherein the amplification factor calculating component calculates an amplification factor based on a repetition frequency, a pulse peak output, and a pulse width and amplifies the optical amplifier based on a calculated amplification factor.
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公开(公告)号：US20200041626A1
公开(公告)日：2020-02-06
申请号：US16524330
申请日：2019-07-29
Applicant: TOPCON Corporation
Inventor： Ken-ichiro Yoshino , Taizo Eno , Hideki Morita , Kohei Fujita
Abstract: A surveying instrument comprises a projection optical system for irradiating a distance measuring light which is a linearly-polarized light to an object to be measured, a light receiving optical system for receiving a reflected distance measuring light from the object to be measured, a polarization selecting module for selecting a polarization of the reflected distance measuring light received by the light receiving optical system and an arithmetic control module for controlling a distance measurement based on a light receiving result of the reflected distance measuring light, wherein the arithmetic control module is configured to give a material information to a distance measurement result of the object to be measured based on a change in light receiving amounts caused due to a selection of the polarization by the polarization selecting module.
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公开(公告)号：US10310059B2
公开(公告)日：2019-06-04
申请号：US15471271
申请日：2017-03-28
Applicant: TOPCON Corporation
Inventor： Noriyasu Kiryuu , Taizo Eno
Abstract: The invention provides a laser scanner, which comprises a light source unit, a light receiving unit, a distance measuring unit, an angle measuring unit, a telescope unit capable of rotating in a horizontal direction and a vertical direction, a rotation driving unit, a directional angle detector, and a control arithmetic unit, wherein the light source unit is an MOPA type and has an oscillator control circuit, a main oscillator, and an optical amplifier, wherein the oscillator control circuit has a repetition frequency setting component, a pulse peak output setting component, a pulse width setting component and an amplification factor calculating component and oscillates the main oscillator corresponding to a measured distance, and wherein the amplification factor calculating component calculates an amplification factor based on a repetition frequency, a pulse peak output, and a pulse width and amplifies the optical amplifier based on a calculated amplification factor.
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Patent Agency Ranking
公开(公告)号：US20170285144A1
公开(公告)日：2017-10-05
申请号：US15471271
申请日：2017-03-28
Applicant: TOPCON Corporation
Inventor： Noriyasu Kiryuu , Taizo Eno
CPC classification number: G01S7/484 , G01B11/26 , G01C15/002 , G01S7/4814 , G01S7/4817 , G01S7/4818 , G01S7/4865 , G01S17/10 , G01S17/42 , G01S17/89
Abstract: The invention provides a laser scanner, which comprises a light source unit, a light receiving unit, a distance measuring unit, an angle measuring unit, a telescope unit capable of rotating in a horizontal direction and a vertical direction, a rotation driving unit, a directional angle detector, and a control arithmetic unit, wherein the light source unit is an MOPA type and has an oscillator control circuit, a main oscillator, and an optical amplifier, wherein the oscillator control circuit has a repetition frequency setting component, a pulse peak output setting component, a pulse width setting component and an amplification factor calculating component and oscillates the main oscillator corresponding to a measured distance, and wherein the amplification factor calculating component calculates an amplification factor based on a repetition frequency, a pulse peak output, and a pulse width and amplifies the optical amplifier based on a calculated amplification factor.
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公开(公告)号：US20220307834A1
公开(公告)日：2022-09-29
申请号：US17700976
申请日：2022-03-22
Applicant: TOPCON CORPORATION
Inventor： Taizo Eno
Abstract: Provided is a surveying system comprising a flying vehicle system which is configured to perform a remote control and include a flying vehicle and a measuring instrument, a position measuring instrument configured to measure a position of the flying vehicle system, and a remote controller configured to control the flying of the flying vehicle system and to wirelessly communicate with the flying vehicle system and the position measuring instrument, in which the remote controller is configured to fly the flying vehicle system to a desired structure, measure an object surface by the measuring instrument, and convert a measurement result of the object surface into a measurement result with reference to the position measuring instrument.
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公开(公告)号：US11435457B2
公开(公告)日：2022-09-06
申请号：US16524330
申请日：2019-07-29
Applicant: TOPCON Corporation
Inventor： Ken-ichiro Yoshino , Taizo Eno , Hideki Morita , Kohei Fujita
Abstract: A surveying instrument comprises a projection optical system for irradiating a distance measuring light which is a linearly-polarized light to an object to be measured, a light receiving optical system for receiving a reflected distance measuring light from the object to be measured, a polarization selecting module for selecting a polarization of the reflected distance measuring light received by the light receiving optical system and an arithmetic control module for controlling a distance measurement based on a light receiving result of the reflected distance measuring light, wherein the arithmetic control module is configured to give a material information to a distance measurement result of the object to be measured based on a change in light receiving amounts caused due to a selection of the polarization by the polarization selecting module.
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公开(公告)号：US20190242977A1
公开(公告)日：2019-08-08
申请号：US16387692
申请日：2019-04-18
Applicant: TOPCON Corporation
Inventor： Noriyasu Kiryuu , Taizo Eno
CPC classification number: G01S7/484 , G01B11/26 , G01C15/002 , G01S7/4814 , G01S7/4817 , G01S7/4818 , G01S7/4865 , G01S17/10 , G01S17/42 , G01S17/89
Abstract: The invention provides a laser scanner, which comprises a light source unit, a light receiving unit, a distance measuring unit, an angle measuring unit, a telescope unit capable of rotating in a horizontal direction and a vertical direction, a rotation driving unit, a directional angle detector, and a control arithmetic unit, wherein the light source unit is an MOPA type and has an oscillator control circuit, a main oscillator, and an optical amplifier, wherein the oscillator control circuit has a repetition frequency setting component, a pulse peak output setting component, a pulse width setting component and an amplification factor calculating component and oscillates the main oscillator corresponding to a measured distance, and wherein the amplification factor calculating component calculates an amplification factor based on a repetition frequency, a pulse peak output, and a pulse width and amplifies the optical amplifier based on a calculated amplification factor.
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公开(公告)号：US20220099442A1
公开(公告)日：2022-03-31
申请号：US17485842
申请日：2021-09-27
Applicant: TOPCON Corporation
Inventor： Taizo Eno
Abstract: Provided is a surveying system including a flying vehicle system which is configured to includes a flying vehicle, a position measuring instrument configured to measure a position of the flying vehicle, and a remote controller configured to control the flying of the flying vehicle and to wirelessly communicate with the flying vehicle system and the position measuring instrument, in which the flying vehicle includes a track ball configured to have a reference position and a reference direction, a shaft configured to extend downward from the track ball and to support such that the shaft becomes tiltable in an arbitrary direction, an infrared sensor configured to project an infrared light to the track ball, and a control device configured to calculate an attitude of the flying vehicle relative to the reference position and the reference direction of the track ball based on the infrared light reflected by the track ball.
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