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公开(公告)号：US20220142468A1
公开(公告)日：2022-05-12
申请号：US17580643
申请日：2022-01-21
Applicant: Topcon Corporation
Inventor： Ryoichi HIROSE , Tatsuo YAMAGUCHI
Abstract: An ophthalmological information processing apparatus includes an acquisition unit and an image correcting unit. The acquisition unit is configured to acquire a front image depicting a predetermined site of a subject's eye in multiple gradations and an OCT image of the subject's eye. The image correcting unit is configured to correct a pixel value in a region including a first position of the predetermined site in the OCT image based on a pixel value at a second position corresponding to the first position in the front image.
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82.发明申请公开(公告)号：US20220125308A1
公开(公告)日：2022-04-28
申请号：US17572642
申请日：2022-01-11
Applicant: Topcon Corporation
Inventor： Kazuhiro OOMORI
Abstract: A corneal endothelial cell imaging apparatus includes an irradiation system, a light receiving system, and a controller. The irradiation system includes a spatial light modulator modulating light from a light source, and is configured to irradiate slit-shaped illumination light toward a cornea by modulating the light using the spatial light modulator. The light receiving system is arranged obliquely to the irradiation system and includes an image sensor receiving reflected light from the cornea. The controller is configured to control the spatial light modulator so as to irradiate the illumination light onto an illumination region on the cornea, and is configured to control the image sensor to set an opening range on a light receiving surface corresponding to the illumination region on the cornea and to capture a light receiving result of reflection component from a corneal endothelium obtained by a light receiving element in the set opening range.
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公开(公告)号：US11300423B2
公开(公告)日：2022-04-12
申请号：US16612977
申请日：2018-06-25
Applicant: TOPCON CORPORATION
Inventor： Takeshi Kikuchi , Mitsutaka Kagata , Sora Otaguro
Abstract: Provided is a communication management system for a surveying instrument. The system includes: a surveying instrument including a survey unit configured to survey a target, a control unit configured to control the survey unit, and a communication unit connected to a communication network; a management server capable of communicating with the surveying instrument; and a remote terminal capable of communicating with the management server, wherein the remote terminal makes maintenance settings for the surveying instrument and cancels the maintenance settings, and stores the maintenance settings and cancellation of the settings in the management server, the management server gives a notification to at least one of a user and an administrator that the surveying instrument is in a state requiring predetermined maintenance work according to the maintenance settings, and when the maintenance settings are canceled, stops the notification.
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公开(公告)号：US11293786B2
公开(公告)日：2022-04-05
申请号：US16567466
申请日：2019-09-11
Applicant: TOPCON CORPORATION
Inventor： Satoshi Yanobe
Abstract: A rotary encoder includes: a rotary disk with an angle code; a light source; a detector reading the angle code; and a processing unit acquiring a reading value. The light source includes at least two light-emitting elements spaced from each other. Every time the rotary disk is rotated by a predetermined angle, where an arbitrary angle from a rotation angle θ within a reading range on the detector is provided as φ, the processing unit acquires reading values fI(θ+φ) and fI(θ) with a first light-emitting element and a reading value fII(θ+φ) with a second light-emitting element, to calculate a reading value error due to deflection at an angle θ+φ based on the difference between the reading values fII(θ+φ) and fI(θ+φ), to obtain a difference gI(θ,φ) between the reading values fI(θ+φ) and fI(θ) such that the error is reflected, and to self-calibrate based on a change in the difference gI(θ,φ).
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公开(公告)号：US20220099807A1
公开(公告)日：2022-03-31
申请号：US17484072
申请日：2021-09-24
Applicant: TOPCON Corporation
Inventor： Takeshi Sasaki , Kaoru Kumagai
IPC: G01S7/481 , G01S17/66 , G01S17/894
Abstract: A laser scanner comprises a distance measuring module for performing the distance measurement, an optical axis deflector for scanning the pulsed distance measuring light, a tracking module for performing tracking, and a control module for controlling the distance measuring module, the optical axis deflector, and the tracking module. The control module detects a moving object from the point cloud data of the predetermined scan range, sets a local scan area including the object, acquires the local point cloud data of the local scan area, calculates a center of gravity position of the local point cloud data, and make the tracking module to track the object based on the calculated center of gravity position.
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Patent Agency Ranking
公开(公告)号：US20220082514A1
公开(公告)日：2022-03-17
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: G01N23/204 , G01N23/18
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：US20220034655A1
公开(公告)日：2022-02-03
申请号：US17385188
申请日：2021-07-26
Applicant: TOPCON Corporation
Inventor： Nobuyuki Nishita
Abstract: A leveling base includes the leveling base including a pedestal, a leveling plate provided to the pedestal via leveling screws such that the leveling is enabled, and a prism unit including a prism having retroreflective characteristics. The prism unit is provided on the leveling plate, the prism unit retro-reflects a light beam entering from a vertically lower side by the prism, a lower through-hole through which a light beam which enters/is reflected to the prism penetrates is provided in the pedestal, and an attachment/detachment portion which enables the attachment/detachment of a predetermined measuring device is provided on an upper surface of the leveling plate.
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公开(公告)号：US20220031159A1
公开(公告)日：2022-02-03
申请号：US17494273
申请日：2021-10-05
Applicant: Topcon Corporation
Inventor： Yasufumi FUKUMA , Kazuhiro OOMORI
Abstract: The object of the present invention is to develop an ophthalmologic microscope of a new method that increases the degree of freedom in the optical design in the Galilean ophthalmologic microscope provided with an OCT optical system. The present invention provides an ophthalmologic microscope, wherein an observation optical system, an objective lens, and an OCT optical system are placed in such a way that the optical axis of the OCT optical system does not penetrate through objective lens, and the optical axis of the observation optical system and the optical axis of the OCT optical system are non-coaxial, and wherein the ophthalmologic microscope further comprises a SLO optical system that scans a light ray which is a visible ray, a near infrared ray, or an infrared ray and guides the light to the subject's eye so as to become substantially coaxial with the optical axis of the OCT optical system.
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公开(公告)号：US20220026207A1
公开(公告)日：2022-01-27
申请号：US17383574
申请日：2021-07-23
Applicant: TOPCON Corporation
Inventor： Taichi Yuasa
Abstract: Provided is a surveying instrument including a distance measuring light projector configured to project a distance measuring light to an object, a distance measuring light receiver having a photodetector configured to receive a reflected distance measuring light from the object, a tracking light projector configured to project a tracking light to the object, a tracking light receiver having a tracking photodetector configured to receive a reflected tracking light from the object, and an image pickup module configured to receive a background light, in which the distance measuring light projector and the tracking light projector include a first deflecting optical member, and the distance measuring light projector, the tracking light projector, and the image pickup module include a second deflecting optical member.
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公开(公告)号：US11219363B2
公开(公告)日：2022-01-11
申请号：US16476113
申请日：2017-12-08
Applicant: TOPCON CORPORATION
Inventor： Yusuke Ono
Abstract: An ophthalmic apparatus according to an embodiment includes a fixation system, a data acquisition device, analyzing circuitry, and controlling circuitry. The fixation system projects fixation light onto a subject's eye. The data acquisition device acquires data by applying optical coherence tomography scanning to the subject's eye onto which the fixation light is being projected. The analyzing circuitry analyzes the data to specify the position of a predetermined site of the subject's eye. The controlling circuitry controls at least one of the fixation system and the data acquisition device based on the positional relationship between the position of the predetermined site specified by the analyzing circuitry and a scan area by the data acquisition device.
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