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公开(公告)号：US20230003527A1
公开(公告)日：2023-01-05
申请号：US17940488
申请日：2022-09-08
Applicant: TOPCON CORPORATION
Inventor： Umihiro ICHIRIYAMA , Ryosuke SHIMIZU , Yoshihiro NISHI , Motohiro MIYAJIMA , Keisuke NAKAMURA
IPC: G01C21/00
Abstract: Provided is a survey method using a position acquiring device that acquires position coordinates of a worker and a mobile terminal capable of communicating with the position acquiring device. the mobile terminal sets an advancing direction of observation and a first measurement point in three-dimensional design data, and makes the position acquiring device acquire position coordinates of the worker, the mobile terminal guides the worker to the first measurement point, makes the position acquiring device acquire position coordinates of the worker at the first measurement point, and sets a point nearest from the first measurement point in the advancing direction as a second measurement point, and after that, a position of the worker, setting of a next measurement point, and guidance to the next measurement point are repeated.
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公开(公告)号：US20230000346A1
公开(公告)日：2023-01-05
申请号：US17641440
申请日：2020-08-31
Applicant: Topcon Corporation
Inventor： Jonathan LIU , Hitoshi SHIMIZU , Hisashi TSUKADA
Abstract: A slit lamp microscope of an aspect example includes a scanner and a data processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect a plurality of cross sectional images. The data processor is configured to generate opacity distribution information that represents a distribution of an opaque area in a crystalline lens, based on the plurality of cross sectional images collected by the scanner.
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公开(公告)号：US20220415457A1
公开(公告)日：2022-12-29
申请号：US17823082
申请日：2022-08-30
Applicant: TOPCON CORPORATION
Inventor： Noriyasu TAKEDA
Abstract: A computer-based method for medical support. A computer receives history data obtained from history taking of a patient, selects one or more first examination types for a first examination from a first examination type group stored in a storage device in advance based on the history data, and controls an output device to output information indicating the one or more first examination types. Further, the computer receives first examination data obtained from the first examination of the patient, wherein the first examination includes at least one of the one or more first examination types, selects one or more second examination types for a second examination from a second examination type group stored in the storage device in advance based on the history data and the first examination data, and controls the output device to output information indicating the one or more second examination types.
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公开(公告)号：US20220386869A1
公开(公告)日：2022-12-08
申请号：US17891140
申请日：2022-08-19
Applicant: Topcon Corporation
Inventor： Yusuke ONO , Hiroyuki AOKI
Abstract: An ophthalmologic apparatus of an embodiment example includes a front image acquiring device, a first search processor, and a second search processor. The front image acquiring device is configured to acquire a front image of a fundus of a subject's eye. The first search processor is configured to search for an interested region corresponding to an interested site of the fundus based on a brightness variation in the front image. The second search processor is configured to search for the interested region by template matching between the front image and a template image in the event that the interested region has not been detected by the first search processor.
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公开(公告)号：USD971037S1
公开(公告)日：2022-11-29
申请号：US35512292
申请日：2021-01-29
Applicant: Topcon Corporation
Designer： Mitsuo Ishii , Yasuhisa Kaneda
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Patent Agency Ranking
公开(公告)号：US20220354365A1
公开(公告)日：2022-11-10
申请号：US17872038
申请日：2022-07-25
Applicant: Topcon Corporation
Inventor： Akira TAKAHASHI , Kazuhiro YAMADA
Abstract: An ophthalmic apparatus includes a light source, an illumination optical system, an optical scanner, an imaging optical system, and a controller. The illumination optical system is configured to generate slit-shaped illumination light using light from the light source. The optical scanner is configured to deflect the illumination light to guide the illumination light to a fundus of a subject's eye. The imaging optical system is configured to guide returning light of the illumination light from the fundus to an image sensor, the image sensor capturing light receiving result of a region on a light receiving surface corresponding to an illumination region of the illumination light on the fundus, the illumination region being moved by the optical scanner. The controller is configured to control a deflection angle of the illumination light of the optical scanner. The optical scanner is configured to output a scanner position signal corresponding to the deflection angle of the illumination light. The image sensor is configured to start capturing the light receiving result of the returning light in synchronization with the scanner position signal.
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公开(公告)号：US11493611B2
公开(公告)日：2022-11-08
申请号：US16387692
申请日：2019-04-18
Applicant: TOPCON Corporation
Inventor： Noriyasu Kiryuu , Taizo Eno
Abstract: The invention provides a laser scanner, which comprises a light source unit, a light receiving unit, a distance measuring unit, an angle measuring unit, a telescope unit capable of rotating in a horizontal direction and a vertical direction, a rotation driving unit, a directional angle detector, and a control arithmetic unit, wherein the light source unit is an MOPA type and has an oscillator control circuit, a main oscillator, and an optical amplifier, wherein the oscillator control circuit has a repetition frequency setting component, a pulse peak output setting component, a pulse width setting component and an amplification factor calculating component and oscillates the main oscillator corresponding to a measured distance, and wherein the amplification factor calculating component calculates an amplification factor based on a repetition frequency, a pulse peak output, and a pulse width and amplifies the optical amplifier based on a calculated amplification factor.
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公开(公告)号：US11490802B2
公开(公告)日：2022-11-08
申请号：US16716508
申请日：2019-12-17
Applicant: TOPCON CORPORATION
Inventor： Ryoichi Hirose , Tatsuo Yamaguchi
Abstract: An ophthalmologic apparatus includes a data acquisition unit, a storage unit, and a correction unit. The data acquisition unit includes a concave mirror and an optical scanner configured to deflect light from a light source to guide to a reflective surface of the concave mirror. The data acquisition unit is configured to acquire a first data set group in an A-scan direction by performing optical coherence tomography on a subject's eye placed at a subject's eye position or a conjugate position of the subject's eye position using light reflected by the reflective surface. The storage unit is configured to store correction data for correcting an incident angle of the light at the subject's eye position depending on a deflection angle of the light by the optical scanner. The correction unit is configured to generate a second data set group by correcting at least a part of the first data set group based on the correction data stored in the storage unit.
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公开(公告)号：US20220322935A1
公开(公告)日：2022-10-13
申请号：US17852399
申请日：2022-06-29
Applicant: Topcon Corporation
Inventor： Masaya SUZUKI , Masashi NAKAJIMA , Hitoshi SHIMIZU
Abstract: An ophthalmic apparatus includes a light source, an illumination optical system, an optical scanner, an imaging optical system, and a controller. The illumination optical system is configured to generate slit-shaped illumination light using light from the light source. The optical scanner is configured to deflect the illumination light to guide the illumination light to a fundus of a subject's eye. The imaging optical system is configured to guide returning light of the illumination light from the fundus to an image sensor. The controller is configured to control the image sensor using a rolling shutter method. The illumination optical system includes a slit with a slit-shaped aperture capable of being arranged at a position substantially conjugate optically to the fundus, an iris aperture arranged between the light source and the slit, and configured to be capable of being arranged at a position substantially conjugate optically to an iris of the subject's eye; and an optical element arranged between the light source and the iris aperture, and configured to deflect the light from the light source.
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公开(公告)号：US20220317149A1
公开(公告)日：2022-10-06
申请号：US17704157
申请日：2022-03-25
Applicant: TOPCON CORPORATION
Inventor： Fumio Ohtomo , Satoshi Yanobe , Kaoru Kumagai , Naoki Shoji
IPC: G01P15/18 , G01P15/093 , G01P15/08
Abstract: An inner frame is rotatably supported by the outer frame via a first shaft, the inertia detecting unit is rotatably supported by the inner frame via a second shaft orthogonal to the first shaft, a first encoder for detecting a rotation angle between the outer frame and the inner frame, a second encoder for detecting a rotation angle between the inner frame and the inertia detecting unit, and rotation powers are provided on the respective shafts. And the arithmetic processing module is configured to drive the respective rotation powers to make the inertia detecting unit to perform a reversal operation of 180° or one rotation at least once based on outputs from the respective encoders regarding the first shaft and the second shaft and to detect a tilt and a rotation based on detection signals output from the inertia detecting unit before and after the reversal.
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