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公开(公告)号：US10697771B2
公开(公告)日：2020-06-30
申请号：US15890617
申请日：2018-02-07
Applicant: TOPCON CORPORATION
Inventor： Nobuyuki Nishita , Kazuki Osaragi , Yasuhito Haijima , You Sasaki , Hiroyuki Ikegami
Abstract: A survey system including a movable photographing device, a surveying device, and an analysis device. The movable photographing device includes a camera mounted on a UAV and taking a plurality of images P for photogrammetry, and a GPS unit including a first time stamping portion stamping a first time Tc relating to a photographing time on the image P taken. The surveying device determines a position of the movable photographing device, and includes a second time stamping portion stamping a second time Tt relating to a surveying time on a survey result R determined above. The analysis device includes a photographing position analysis portion associating each survey result R with a photographing position of the respective image P based on the first time Tc and the second time Tt, and generating data for photogrammetry.
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公开(公告)号：US10667684B2
公开(公告)日：2020-06-02
申请号：US15670234
申请日：2017-08-07
Applicant: TOPCON CORPORATION
Inventor： Masahiro Shibutani , Ryoichi Hirose , Toshihiro Mino
Abstract: An optical coherence tomography (OCT) apparatus according to an embodiment is configured to split light from a light source into measurement light and reference light, project the measurement light on an object, and detect interference light generated from the reference light and the measurement light returning from the object. The OCT apparatus includes a dispersion unit and an information generation unit. The dispersion unit is configured to relatively change a dispersion characteristic of a measurement optical path which is an optical path of the measurement light and a dispersion characteristic of a reference optical path which is an optical path of the reference light, according to an operation mode corresponding to a depth range. The information generation unit is configured to generate information on the object according to the operation mode, based on a detection result of the interference light.
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公开(公告)号：US20200163545A1
公开(公告)日：2020-05-28
申请号：US16200676
申请日：2018-11-27
Applicant: Topcon Corporation
Inventor： Yasufumi Fukuma , Hideharu Suzuki , Zhenguo Wang , Kazuhiro Oomori , Makoto Fujino
Abstract: An ophthalmologic apparatus of some exemplary embodiments includes an illumination system, interference photographing system, anterior eye segment photographing system, first optical path coupling element, and controller. The illumination system projects illumination light output from a light source, onto the anterior eye segment of a subject's eye. The interference photographing system performs photographing of an interference pattern formed on the cornea by the illumination light. The anterior eye segment photographing system performs photographing of the anterior eye segment onto which the illumination light is being projected. The first optical path coupling element couples the optical path of the interference photographing system and the optical path of the anterior eye segment photographing system with one another. The controller controls a display device to display an interference image acquired by the interference photographing system, over an anterior eye segment image acquired by the anterior eye segment photographing system.
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公开(公告)号：US10663296B2
公开(公告)日：2020-05-26
申请号：US15878830
申请日：2018-01-24
Applicant: TOPCON CORPORATION
Inventor： Akinobu Sugiura , Masahiro Ohishi
Abstract: Provided is a surveying instrument including a light emitting section for emitting distance measuring light having an intensity distribution in which an intensity is high at the center and it became lower as approaching the periphery, a light receiving section for receiving the distance measuring light via a measurement object; and a distance-measurement optical system for guiding the light to the light receiving section via the measurement object. The surveying instrument performs a prism-mode and non-prism-mode measurements. The optical system includes an aperture diaphragm arranged in a distance-measurement optical path during the prism-mode-measurement. An opening of the aperture diaphragm has widths of greater than 0 and not greater than 0.5 times the full width at half maximum of the intensity distribution in a cross-section of non-prism-distance-measurement beam in the horizontal and vertical direction.
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145.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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Patent Agency Ranking
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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150.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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