Patents by Inventor Fumio Ohtomo

Fumio Ohtomo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10809360
    Abstract: A laser scanner comprises a scanner main unit, wherein the scanner main unit has a distance measuring light projecting component for projecting a distance measuring light, a light receiving component for receiving a reflected distance measuring light, a distance measuring component for performing a distance measurement based on a light receiving signal from the light receiving component, an optical axis deflecting unit for deflecting a distance measuring optical axis, a projecting direction detecting unit for detecting a deflection angle of the distance measuring optical axis, a storage component which stores three-dimensional design drawing data of an object to be measured and a control component for controlling the optical axis deflecting unit and the distance measuring component, wherein the control component acquires scanning data by scanning a measurement range and extracts an actual ridge line or an actual intersection point of the object to be measured based on the scanning data.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: October 20, 2020
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20200326186
    Abstract: There is provided a surveying instrument including a tripod which is installed on an installation surface and a surveying instrument main body which is provided on the tripod and laterally rotatable around a longitudinal axis, wherein the tripod includes a reference leg has a known relationship between a lower end of the reference leg and a machine reference point which is a machine center of the surveying instrument main body, and two auxiliary legs, the reference leg is installed in such a manner that a lower end of the reference leg coincides with a reference point, wherein the surveying instrument main body calculates a position of the machine reference point with respect to the reference point based on the positional relationship between the lower end of the reference leg and the machine reference point.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 15, 2020
    Inventors: Nobuyuki Nishita, Fumio Ohtomo
  • Patent number: 10800344
    Abstract: An aerial photogrammetric device comprises an aerial vehicle configured to fly autonomously or remotely controlled, an image pickup device provided on the aerial vehicle and having an optical axis extending in a vertical direction, an attitude detecting device for detecting a tilt angle and a tilting direction with respect to a horizontality or a verticality of the optical axis, a position measuring device, and a control device for controlling a flight of the aerial vehicle, wherein the control device is configured to acquire images at two points by the image pickup device, acquire image acquiring positions at a time of image acquisition from the position measuring device, acquire a detection result of the attitude detecting device at the time of image acquisition, correct the images acquired at the two points into horizontal images based on the detection result, and perform a relative orientation of the obtained horizontal images.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: October 13, 2020
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20200318963
    Abstract: There is provided a surveying instrument including a monopod which is installed on a reference point, a surveying instrument main body which is provided at a known distance from a lower end of the monopod and a known angle with respect to an axis of the monopod, two auxiliary legs which extend downward from an middle portion of the monopod at a predetermined angle, wherein the surveying instrument main body comprises a distance measuring unit configured to measure a distance to an object to be measured, a measuring direction image pickup module configured to acquire an observation image including the object to be measured, an attitude detector configured to detect the tilts of the surveying instrument main body with respect to the horizontality, and an arithmetic control module, and wherein the surveying instrument main body is supported by three points by the monopod and the auxiliary legs.
    Type: Application
    Filed: March 20, 2020
    Publication date: October 8, 2020
    Inventors: Satoshi Hirano, Kaoru Kumagai, Fumio Ohtomo, Kazuki Osaragi, Nobuyuki Nishita, Tetsuji Anai, Noriyasu Kiryuu
  • Publication number: 20200318966
    Abstract: There is provided a surveying instrument including a monopod which is installed on a reference point, a surveying instrument main body which is provided at a known distance from a lower end of the monopod and a known angle with respect to an axis of the monopod, two auxiliary legs which extend downward from an middle portion of the monopod at a predetermined angle, and a lower image pickup module which is provided at a known position with respect to the surveying instrument main body, wherein the surveying instrument main body comprises a measuring unit, a measuring direction image pickup module, and an arithmetic control module, wherein the surveying instrument main body is supported by three points by the monopod and the auxiliary legs, and a positional change or a rotational change of the surveying instrument main body is calculating based on a change of the lower image.
    Type: Application
    Filed: March 20, 2020
    Publication date: October 8, 2020
    Inventors: Satoshi Hirano, Kaoru Kumagai, Fumio Ohtomo, Kazuki Osaragi, Nobuyuki Nishita, Tetsuji Anai, Noriyasu Kiryuu
  • Patent number: 10767991
    Abstract: A laser scanner includes a distance measuring unit which has a light emitting element for emitting a distance measuring light, a distance measuring light projecting unit, a light receiving unit and a photodetector for producing a light receiving signal, and which performs a distance measurement based on the light receiving signal, an optical axis deflecting unit provided on a distance measuring optical axis and for deflecting the distance measuring optical axis, a projecting direction detecting unit for detecting a deflection angle of the distance measuring optical axis and a control component for controlling the optical axis deflecting unit and the distance measuring unit, wherein the optical axis deflecting unit comprises a pair of optical prisms capable of rotating and motors for rotating the optical prisms, and wherein the control component is configured to control the optical axis deflecting unit, scan the distance measuring light and acquire scanning data under scanning conditions corresponding to a mea
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: September 8, 2020
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Patent number: 10697758
    Abstract: A laser remote length measurement instrument capable of remotely measuring a length between two required points in a non-contact manner is provided. The laser remote length measurement instrument includes a rangefinding unit, an optical axis deflection section, a rotation angle detector, and a computation controller. The rangefinding unit is configured to cause a light emitting element to emit visible rangefinding light and obtain a light reception signal. The optical axis deflection section is configured to scan to-and-fro between two directions with the rangefinding light. The rotation angle detector is configured to detect a divergence angle between the two directions. The computation controller is configured to compute a distance between illuminated points in the two directions illuminated with the rangefinding light on the basis of rangefinding results for the illuminated points and the divergence angle between the two directions.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 30, 2020
    Assignee: TOPCON CORPORATION
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20200182614
    Abstract: There is provided a surveying instrument including a distance measuring unit configured to measure a distance to an object to be measured, a measuring direction image pickup module which includes the object to be measured and is configured to acquire as observation image, an attitude detector is configured to detect a tilt of the surveying instrument main body and a arithmetic control module, and wherein the arithmetic control module is configured to extract each common corresponding point from a first image acquired at a first installing point and a second image acquired at a second installing point, perform the matching based on the corresponding point, and make a measurement of a positional relationship of the object to be measured with respect to the first installing point and the second installing point based on a matching image.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 11, 2020
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
  • Patent number: 10634497
    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.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: April 28, 2020
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Hideyuki Matsumoto, Kazuki Osaragi, Takahiro Inoue
  • Patent number: 10634795
    Abstract: The invention provides a rover, which comprises a pole of which lower end indicates a point to be measured, a measurement auxiliary apparatus provided at a predetermined position of the pole, a direction detecting device integrally provided with the measurement auxiliary apparatus and for detecting a direction of the measurement auxiliary apparatus, and an object to be measured provided at a known distance from the lower end of the pole, wherein the measurement auxiliary apparatus comprises a horizontal detecting unit which is supported so as to be rotatable around two shafts orthogonal to each other and detects the tilts in two axial directions, motors provided so as to rotate the shafts, encoders provided respectively on the shafts, and an arithmetic processing component for controlling the motors in such a manner that the horizontal detecting unit becomes horizontal based on a detection result from the horizontal detecting unit, wherein the encoders are configured to detect a rotation amount of each shaft
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: April 28, 2020
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20200096334
    Abstract: A surveying instrument comprises a distance measuring light projecting module, a light receiving module, an optical axis deflector which integrally deflects a distance measuring optical axis and a light receiving optical axis, a wide-angle image pickup module, a projecting direction detecting module configured to detect an optical axis deflection angle and a deflecting direction, a narrow-angle image pickup module, a distance measurement calculating module and an arithmetic control module, wherein the arithmetic control module is configured to control the optical axis deflector and the distance measurement calculating module, wherein the distance measurement calculating module is configured to perform a distance measurement of a measuring point based on a light emission timing of a distance measuring light and a light reception timing of a reflected distance measuring light, and wherein the narrow-angle image pickup module is configured to acquire a narrow-angle image with the distance measuring optical axis
    Type: Application
    Filed: September 16, 2019
    Publication date: March 26, 2020
    Inventors: Fumio Ohtomo, Ikuo Ishinabe, Kaoru Kumagai
  • Patent number: 10602129
    Abstract: An image acquiring device comprises a first camera 14 for acquiring video images, consisting of frame images continuous in time series, a second camera 15 being in a known relation with the first camera and used for acquiring two or more optical spectral images of an object to be measured, and an image pickup control device 21, and in the image acquiring device, the image pickup control device is configured to extract two or more feature points from one of the frame images, to sequentially specify the feature points in the frame images continuous in time series, to perform image matching between the frame images regarding the frame images corresponding to the two or more optical spectral images based on the feature points, and to synthesize the two or more optical spectral images according to the condition obtained by the image matching.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: March 24, 2020
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Hitoshi Otani, Masayuki Momiuchi, Kazuki Osaragi
  • Publication number: 20200081266
    Abstract: A surveying instrument comprises a distance measuring unit configured to measure a distance to an object to be measured, an optical axis deflector configured to deflect a distance measuring light, a measuring direction image pickup module configured to acquires an observation image and an arithmetic control module, wherein the arithmetic control module is configured to continuously cut out sighting images around a tracking point set in the observation image, to set a first cutout sighting image as a reference sighting image, to calculate a movement amount of the sighting image with respect to the reference sighting image by an image matching of the reference sighting image and the sighting image and to control the optical axis deflector based on a calculation result in such a manner that the tracking point is positioned at a center of the sighting image.
    Type: Application
    Filed: September 10, 2019
    Publication date: March 12, 2020
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
  • Patent number: 10564265
    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.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: February 18, 2020
    Assignee: Topcon Corporation
    Inventors: Takahiro Inoue, Satoshi Yanobe, Hideyuki Matsumoto, Fumio Ohtomo
  • Patent number: 10520307
    Abstract: The invention provides a surveying instrument, which comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured, an image pickup unit for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the image pickup unit, and an arithmetic processing unit, wherein the attitude detecting unit has tilt sensors for detecting a horizontal and a relative tilt angle detecting unit for detecting a tilt angle of the measuring unit with respect to the horizontal, and wherein the arithmetic processing unit calculates a tilting of the image with respect to a vertical based on a detection result of the attitude detecting unit and displays vertical lines in the image acquired by the image pickup unit based on this calculation result.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: December 31, 2019
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
  • Publication number: 20190360806
    Abstract: A surveying instrument comprises a monopod installed at a reference point, a surveying instrument main body provided at the monopod and having an attitude detector, wherein the surveying instrument main body carries out an image pickup and a scanning of an object to be measured at a pre-movement and a post-movement respectively, obtains at least three cross points of a locus of a scan pattern of the pre-movement and the post-movement, and calculates three-dimensional coordinates of an installation point of the post-movement based on three-dimensional coordinates of the cross points measured from the reference point, a measurement result of the cross points measured from the installation point of the post-movement and a detection result of the attitude detector.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 28, 2019
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
  • Publication number: 20190346539
    Abstract: A surveying system comprises an object to be measured having a retro-reflector and a surveying instrument main body for emitting a distance measuring light and performing a measurement based on a reflected distance measuring light, wherein the surveying instrument main body comprises a distance measuring light projecting module, a photodetector, a measuring unit, an optical axis deflector which has a reference optical axis and deflects a distance measuring optical axis, a projecting direction detecting module which detects a deflection angle and a deflection angle direction of the distance measuring optical axis, and an arithmetic control module, and wherein the arithmetic control module is configured to control the optical axis deflector, to perform a two-dimensional scan with the distance measuring light, to detect the deflection angle direction of the distance measuring light at a moment of detecting a photodetecting signal by the projecting direction detecting module, and to move an approximate center of
    Type: Application
    Filed: April 30, 2019
    Publication date: November 14, 2019
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20190339075
    Abstract: A surveying instrument comprises a monopod installed on a reference point, a surveying instrument main body provided at a known distance from a lower end of the monopod and at a known angle with respect to an axis of the monopod and having a reference optical axis, wherein the surveying instrument main body performs an image pickup of an object to be measured and scans the object to be measured by a closed loop scan pattern respectively at a pre-rotation and a post-rotation of the surveying instrument main body, obtains cross points of a locus of a scan pattern of the pre-rotation and the post-rotation, obtains deflection angles of the cross point with respect to the reference optical axis of the pre-rotation and the post-rotation, and calculates a rotation angle of the surveying instrument main body based on a deviation between both of the deflection angles.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 7, 2019
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
  • Publication number: 20190302236
    Abstract: A surveying device body includes a distance measuring section to measure a distance to the measurement target, an optical axis deflector that deflects distance measuring light with respect to a reference optical axis, a measurement direction imaging section that obtains an observation image, and an attitude detector that detects an incline of the surveying device body. A computation controller displays a portion of the observation image on the display unit, computes a direction angle of the distance measuring optical axis on the basis of a detection result of the attitude detector and a deflection angle of the distance measuring optical axis with respect to the reference optical axis, and measures the measurement target on the basis of the direction angle and a distance measurement result of the distance measuring section using a reference point as a reference.
    Type: Application
    Filed: March 26, 2019
    Publication date: October 3, 2019
    Applicant: TOPCON CORPORATION
    Inventors: Fumio OHTOMO, Kaoru KUMAGAI
  • Patent number: 10371801
    Abstract: The invention provides a measuring instrument, which comprises a measuring unit for projecting a distance measuring light toward an object to be measured and for performing a distance measurement by receiving a reflected light from the object to be measured, and an attitude detecting device integrally provided with the measuring unit, wherein the attitude detecting device has tilt sensors for detecting a horizontality and relative tilt angle detectors for tilting the tilt sensors and for detecting a tilt angle of the measuring unit with respect to the horizontality under such condition that the tilt sensors detects the horizontality so that the horizontality is detected by the tilt sensor, and wherein the distance measurement of the object to be measured is performed by the measuring unit, and a vertical angle of a measuring point is determined based on the result of the tilt detection by the attitude detecting device.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: August 6, 2019
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai