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161.发明申请公开(公告)号：US20200096641A1
公开(公告)日：2020-03-26
申请号：US16574110
申请日：2019-09-18
Applicant: TOPCON CORPORATION
Inventor： Daisuke SASAKI , Takahiro KOMEICHI
Abstract: A survey data processing device includes a panoramic image data receiving unit, a point cloud data receiving unit, a similar part designation receiving unit, and a correspondence relationship determining unit. The panoramic image data receiving unit receives first and second panoramic images that are respectively obtained at a first point of view and a second point of view. The point cloud data receiving unit receives first point cloud data that is obtained by a first laser scanner and receives second point cloud data that is obtained by a second laser scanner. The similar part designation receiving unit receives designation of a part that is the same or similar between the first and second panoramic images. The correspondence relationship determining unit determines a correspondence relationship between the first and second point cloud data on the basis of the first and second point cloud data corresponding to the same or similar part.
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公开(公告)号：US20200096334A1
公开(公告)日：2020-03-26
申请号：US16571572
申请日：2019-09-16
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Ikuo Ishinabe , Kaoru Kumagai
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 as an image center.
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公开(公告)号：US20200096333A1
公开(公告)日：2020-03-26
申请号：US16574909
申请日：2019-09-18
Applicant: TOPCON CORPORATION
Inventor： Nobuyuki NISHITA
Abstract: A measurement apparatus is provided that includes a distance measuring unit, a deflecting unit, and a calculation control unit which controls the distance measuring unit and the deflecting unit. The calculation control unit detects coordinates of a pair of intersection points of the object to be measured and a scan trajectory with the measurement light on the basis of a distance measurement result by the distance measuring unit and the direction of emission deflected by the deflecting unit. The calculation control unit controls a deflection operation of the deflecting unit so as to change the direction of emission on the basis of the coordinates of the pair of intersection points such that the scan trajectory with the measurement light and the object to be measured intersect with each other.
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公开(公告)号：US20200077888A1
公开(公告)日：2020-03-12
申请号：US16686245
申请日：2019-11-18
Applicant: TOPCON CORPORATION
Inventor： Takefumi HAYASHI , Kouta FUJII
Abstract: An ophthalmological device according to the embodiments comprises an objective lens, a subjective inspection optical system, and an interference optical system. The subjective inspection optical system includes an optical element capable of correcting aberration of a subject's eye and projects a visual target onto the subject's eye via the objective lens and the optical element. The interference optical system splits light from a light source into reference light and measurement light, projects the measurement light onto the subject's eye via the objective lens and the optical element, generates interference light between returning light of the measurement light and the reference light, and detects the generated interference light.
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公开(公告)号：US20200072977A1
公开(公告)日：2020-03-05
申请号：US16544846
申请日：2019-08-19
Applicant: TOPCON CORPORATION
Inventor： Naoki Shoji , Masae Matsumoto
Abstract: An electro-optical distance measurement method includes: a light emitting step of switchably outputting a first distance measuring light and a second distance measuring light; a photodetection step of receiving a first reflected distance measuring light and a second reflected distance measuring light; an arithmetic step of frequency-converting a photodetection signal to generate a first difference frequency signal and a second difference frequency signal; and a determining step of determining whether identification information indicating a host device is included in the photodetection signal, wherein the light emitting step involves driving a light emitting element so that the identification information is included in a light emission signal, and the arithmetic step involves calculating the distance value when it is determined in the determining step that the identification information is included in the photodetection signal.
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Patent Agency Ranking
166.发明授权公开(公告)号：US10578430B2
公开(公告)日：2020-03-03
申请号：US15423746
申请日：2017-02-03
Applicant: TOPCON CORPORATION
Inventor： You Sasaki , Kazuhiro Ogawa , Tadayuki Ito
Abstract: To carry out evaluation of a road surface property easily and in a short period of time without being costly. Measurement data of a road surface measured for a predetermined road width along a path of a road to be measured is acquired; a unit area having a preset length dimension along the path in the road width is set along the path; a model plane in the unit area is set based on the measurement data at each point in the unit area; point group data is generated from a spaced amount of the model plane and each point in the unit area, visualize and display the spaced amount in the path, and display a result of evaluation obtained through statistical processing with the path shown on a map.
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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：US10561311B2
公开(公告)日：2020-02-18
申请号：US15768191
申请日：2016-10-12
Applicant: TOPCON CORPORATION
Inventor： Takaki Tokuyama , Katsuhiro Yamada
Abstract: An ophthalmic imaging apparatus according to an exemplary embodiment includes a three dimensional data generator, an analyzer, and a display controller. The three dimensional data generator generates three dimensional data by scanning a three dimensional region of a subject's eye using optical coherence tomography (OCT). The analyzer generates a plurality of analysis maps by analyzing a plurality of pieces of partial three dimensional data in the three dimensional data. The display controller displays the plurality of analysis maps over a front image of the subject's eye on a display device.
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公开(公告)号：US20200046220A1
公开(公告)日：2020-02-13
申请号：US16432965
申请日：2019-06-06
Applicant: TOPCON CORPORATION
Inventor： Yoko TATARA
Abstract: An ophthalmologic apparatus includes a refractometry optical system, an OCT optical system, a fixation projection system, and a controller. The refractometry optical system is configured to project light onto a subject's eye and to detect returning light from the subject's eye. The OCT optical system is configured to split light from an OCT light source into measurement light and reference light, to project the measurement light onto the subject's eye, and to detect interference light between returning light of the measurement light from the subject's eye and the reference light. The fixation projection system is configured to simultaneously project a first fixation target and a second fixation target onto the subject's eye, a visual angle of the second fixation target being narrower than a visual angle of the first fixation target. The controller is configured to control the refractometry optical system and the OCT optical system to simultaneously perform a refractometry and an OCT measurement.
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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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