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公开(公告)号：US20230094618A1
公开(公告)日：2023-03-30
申请号：US17933459
申请日：2022-09-19
Applicant: TOPCON CORPORATION
Inventor： You SASAKI
Abstract: A technique for enabling efficient surveying operation that uses a light-reflecting target is provided. A surveying apparatus is configured to survey a reflecting prism and includes a controller, a surface calculator, and a position calculator. The controller performs positioning on three or more points on the set-up surface on which the reflecting prism is set up, by using laser light. The surface calculator calculates a plane of the set-up surface based on the positioning data of the three or more points in a case in which the position of the reflecting prism is surrounded by the three or more points in terms of a horizontal plane. The position calculator calculates a point of intersection of the plane and a straight line from the position of the reflecting prism to the plane, as a position on the set-up surface, at which the reflecting prism is set up.
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公开(公告)号：US11614415B2
公开(公告)日：2023-03-28
申请号：US17310856
申请日：2020-02-27
Applicant: Topcon Corporation , RIKEN
Inventor： Shigenori Nagano , Satoru Ishiguro , Yoshie Otake , Hideyuki Sunaga , Yuichi Yoshimura , Koji Ikado
IPC: G01N23/18 , G01N23/20 , G01N23/09 , G01N23/204
Abstract: A non-destructive inspection system includes: a neutron emission unit 12 capable of emitting neutrons pulsed; a neutron detector capable of detecting the neutrons emitted from the neutron emission unit and penetrating through an inspection object; a storage unit storing attenuation information indicating a relationship between a material of the inspection object and attenuation of the neutrons; and a calculation unit capable of calculating distance information indicating a position of a specific portion in the inspection object in accordance with time change information which is information on a change over time in an amount of the neutrons detected by the neutron detector. The calculation unit is capable of generating information related to an amount of the specific portion from information based on the amount of the neutrons according to the time change information, using the distance information and the attenuation information.
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公开(公告)号：US11614321B2
公开(公告)日：2023-03-28
申请号：US16829673
申请日：2020-03-25
Applicant: TOPCON CORPORATION
Inventor： Jongsik Kim , Bin Cao , Song Mei , Kinpui Chan , Zhenguo Wang , Zaixing Mao
Abstract: An interferometric method of identifying the thickness of an object that is too thin to be resolved by a Fourier transform of the interference signal includes applying a harmonic frequency modulation to an envelope of the interference signal. Where the object is a tear film, this method may be utilized to determine a thickness of the lipid layer of the tear film.
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公开(公告)号：US20230080388A1
公开(公告)日：2023-03-16
申请号：US17931123
申请日：2022-09-11
Applicant: TOPCON CORPORATION
Inventor： Hideki MORITA , Yoshikatsu TOKUDA
Abstract: Scanning density of laser scanning is increased at low cost. A laser scanning apparatus includes a vertical rotation unit and a controller. The vertical rotation unit emits pulses of laser scanning light. The controller controls emission of pulses of the laser scanning light. Assuming that a symbol “n” is a natural number of one or more, the controller controls so that a position in a rotation direction of emission of pulses of the laser scanning light for (n+1)th rotation of the vertical rotation unit will be different from that for nth rotation of the vertical rotation unit.
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公开(公告)号：US20230070967A1
公开(公告)日：2023-03-09
申请号：US17985555
申请日：2022-11-11
Applicant: TOPCON CORPORATION
Inventor： Satoshi YASUTOMI , Takahiro KOMEICHI , Tadayuki ITO
Abstract: A surveying system includes a target unit having a reflection target and an encoder pattern showing an angle of the target unit; a scanner configured to acquire three-dimensional point cloud data, measured coordinates of the target, and optically read the encoder pattern to acquire an encoder pattern read angle; and a leveling base configured to selectively allow either of the target unit and the scanner to be removably mounted. The scanner calculates a direction angle of the leveling base based on the encoder pattern read angle and the offset angle of the target unit, calculates coordinates of an installation point of the target unit based on the measured coordinates of the target and the direction angle of the target, and calculates a direction angle of the scanner based on the offset angle of the scanner and the direction angle of the leveling base on which the scanner is mounted.
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Patent Agency Ranking
公开(公告)号：US20230064228A1
公开(公告)日：2023-03-02
申请号：US17794623
申请日：2021-01-20
Applicant: Topcon Corporation , RIKEN
Inventor： Satoshi WADA , Atsushi SHINJO , Takayo OGAWA , Takeharu MURAKAMI , Yasufumi FUKUMA , Zaxing MAO , Satoshi YANOBE , Toshio YAMADA
Abstract: One aspect example is a system for photogrammetry of a building. A memory stores design data and physical material data. The design data includes virtual material information on attributes for each of virtual materials of a virtual building. The physical material data is on the attributes for each of physical materials and generated based on measured data acquired from a physical building constructed on the basis of the design data. A material associating processor is configured to generate pairs of virtual and physical materials by determining an association between the virtual materials and the physical materials based on the virtual material information and the physical material data. An attribute associating processor is configured to determine an association between the virtual material information and the physical material data in accordance with the attributes for each of the pairs.
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公开(公告)号：US20230050680A1
公开(公告)日：2023-02-16
申请号：US17794317
申请日：2020-12-21
Applicant: Topcon Corporation
Inventor： Ryoichi HIROSE , Suguru MIYAGAWA
IPC: H04N13/293 , A61B3/12 , A61B3/10 , A61B3/14
Abstract: An ophthalmic information processing apparatus includes a specifying unit and an image deforming unit. The specifying unit is configured to specify a three-dimensional position of each pixel in a two-dimensional front image depicting a predetermined site of a subject's eye, based on OCT data obtained by performing optical coherence tomography on the predetermined site. The image deforming unit is configured to deform the two-dimensional front image, by changing position of at least one pixel in the two-dimensional front image based on the three-dimensional position, to generate a three-dimensional front image.
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公开(公告)号：US20230045338A1
公开(公告)日：2023-02-09
申请号：US17793881
申请日：2021-01-28
Applicant: TOPCON CORPORATION
Inventor： Atsushi DOJI , Toshio YAMADA , Nobuyuki NISHITA
Abstract: The present management system includes a design database recording member identification information and member shape information on construction members constituting a construction object, a measurement database recording point coordinates of measurement points of the construction object, a member shape information acquiring unit configured to acquire the member shape information of a shape calculation member selected among the construction members recorded in the design database, a member in-range determining unit configured to determine whether coordinates of an object point selected among the measurement points recorded in the measurement database are of the shape calculation member by using the member shape information of the shape calculation member, and an allocated measurement data creating unit configured to record the object point in association with member identification information of the shape calculation member in the measurement database.
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公开(公告)号：US20230019423A1
公开(公告)日：2023-01-19
申请号：US17854991
申请日：2022-06-30
Applicant: TOPCON CORPORATION
Inventor： Nobuyuki NISHITA , Junki KANEKO
Abstract: Provided is a technology to properly display information onto a projection surface without depending on a distance image sensor, and directly project a wide range of information other than a survey setting point onto a construction site. A system includes: a projector including an inclination sensor and at least one reflector ; a measuring device configured to measure a position of the reflector; a means having surface information; and a means configured for setting a distance difference between a projection surface onto which the surface information is projected and the measuring device in a normal direction, wherein the measuring device measures the reflector, and the surface information adjusted according to the distance difference in the normal direction is projected onto the projection surface.
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公开(公告)号：US20230015894A1
公开(公告)日：2023-01-19
申请号：US17812163
申请日：2022-07-12
Applicant: TOPCON CORPORATION
Inventor： Masae MATSUMOTO , Naoki SHOJI , Jun ABE
Abstract: The light wave distance meter is disclosed, including: a distance measuring light-emitting unit; a light-receiving signal generating unit; and a control arithmetic unit. A light-receiving signal includes a first intermittent light-receiving signal corresponding to a first distance measuring light, a second intermittent light-receiving signal corresponding to a second distance measuring light, a third intermittent light-receiving signal corresponding to a third distance measuring light, and a fourth intermittent light-receiving signal corresponding to a fourth distance measuring light. The control arithmetic unit executes an error determination control to acquire a shift signal generated by shifting at least a phase of any one of the first to fourth intermittent light-receiving signals by 2π·n−π/2 or 2π·n+π/2, and compares the phase of the shift signal and the phase of the intermittent light-receiving signal at least between either the first frequencies or between the second frequencies.
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