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公开(公告)号：US20230309822A1
公开(公告)日：2023-10-05
申请号：US18126447
申请日：2023-03-26
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Makoto SAIKA , Yoko TATARA , Akio HAYASHI
CPC classification number: A61B3/103 , A61B3/0041 , A61B3/0025
Abstract: An ophthalmologic apparatus includes a subjective measurement optical system configured to measure a subjective refractive value of a subject eye, an objective measurement optical system configured to measure objective refractive characteristics of the subject eye, and a controller configured to control the subjective measurement optical system and the objective measurement optical system. The controller is further configured to measure the objective refractive characteristics of the subject eye by the objective measurement optical system and perform objective monitoring to monitor objective measurement information obtained by the measurement of the objective refractive characteristics during an RG test for checking whether or not corrected power is overcorrected or undercorrected by the subjective measurement optical system.
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公开(公告)号：US20200085292A1
公开(公告)日：2020-03-19
申请号：US16568262
申请日：2019-09-12
Applicant: TOPCON CORPORATION
Inventor： Yasufumi FUKUMA , Takefumi HAYASHI , Yoko TATARA
Abstract: An ophthalmic apparatus of an exemplary aspect performs the first and second OCT scans on a subject's eye. The first OCT scan is performed on the first region including the first site of the subject's eye, and the second OCT scan is performed on the second region including the second site. The ophthalmic apparatus acquires the first deviation information of the subject's eye prior to the first OCT scan and performs alignment, and also acquires the second deviation information of the subject's eye prior to the second OCT scan and performs alignment. The ophthalmic apparatus calculates the distance between the first site and the second site based on the first data acquired through the first OCT scan and second data acquired through the second OCT scan.
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公开(公告)号：US20190282083A1
公开(公告)日：2019-09-19
申请号：US16289675
申请日：2019-03-01
Applicant: TOPCON CORPORATION
Inventor： Takefumi HAYASHI , Yoko TATARA , Shunichi MORISHIMA
Abstract: An ophthalmologic apparatus includes an objective lens, a refractive power measurement optical system, an inspection optical system, and an optical path separating unit. The refractive power measurement optical system is configured to project light in a first wavelength range onto a subject's eye via the objective lens and to detect returning light from the subject's eye. The inspection optical system is configured to project light in a second wavelength range onto the subject's eye via the objective lens. The optical path separating unit that is arranged in an optical path of the refractive power measurement optical system and is configured to separate an optical path of the inspection optical system from the optical path of the refractive power measurement optical system by performing wavelength separation based on changeable wavelength separation characteristics.
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公开(公告)号：US20250072744A1
公开(公告)日：2025-03-06
申请号：US18820069
申请日：2024-08-29
Applicant: OSAKA UNIVERSITY , TOPCON CORPORATION
Inventor： Takashi FUJIKADO , Yoko TATARA , Takafumi YUKIMORI , Makoto SAIKA , Ryoka NORO
Abstract: An ophthalmic examination apparatus includes a visual target projection system that includes a visual target presentation portion that presents a fixed visual target to left and right subject eyes, an objective measurement optical system that objectively measures eye characteristics of the left and right subject eyes, and a controller that controls each portion of the apparatus, wherein the controller measures the eye characteristics of the left and right subject eyes with the objective measurement optical system and acquires an objective refraction value as objective measurement information when fusion is attempted with left and right subject eyes with respect to a change in the convergence distance.
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公开(公告)号：US20250057410A1
公开(公告)日：2025-02-20
申请号：US18804483
申请日：2024-08-14
Applicant: OSAKA UNIVERSITY , TOPCON CORPORATION
Inventor： Takashi FUJIKADO , Yoko TATARA , Takafumi YUKIMORI , Makoto SAIKA , Ryoka NORO , Manabu SAKAIHARA
Abstract: An ophthalmologic apparatus includes a visual target presenting portion that presents fixation targets to subject eyes; an objective measurement optical system that objectively measures eye characteristics of the subject eyes; and a controller. Each of the fixation targets includes fusion targets depicted in a manner that allows binocular fusion while the subject eyes respectively view the fixation targets. The visual target presenting portion presents the fixation targets while changing an examination distance from the subject eyes to the fixation target when an anisometropia is induced. In the anisometropia, one subject eye is in a fully corrected condition and the other subject eye is corrected by a predetermined degree from the fully corrected condition. The controller controls the objective measurement optical system to measure the eye characteristics while the subject eyes binocularly view the fixation targets and acquire refractive values of the subject eyes as objective measurement information.
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Patent Agency Ranking
公开(公告)号：US20240108213A1
公开(公告)日：2024-04-04
申请号：US18371059
申请日：2023-09-21
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Yoko TATARA , Makoto SAIKA
CPC classification number: A61B3/0091 , A61B3/103
Abstract: An ophthalmologic apparatus includes a target projection system that presents an eye chart to a subject eye, an objective measurement optical system that objectively measures an eye characteristic of the subject eye, and a control portion that controls the target projection system and the objective measurement optical system, wherein the control portion presents the target for a predetermined time at a predetermined presentation position with the target projection system, and objectively measures the eye characteristic with the objective measurement optical system in a time series to control an operation of each portion based on a measurement result of the objective measurement.
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公开(公告)号：US20240099579A1
公开(公告)日：2024-03-28
申请号：US18370952
申请日：2023-09-21
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Yoko TATARA , Makoto SAIKA
CPC classification number: A61B3/117 , A61B3/085 , A61B3/14 , A61B3/0041
Abstract: An ophthalmic apparatus includes an image acquisition unit configured to acquire an anterior segment image of a subject eye, an optotype projection system configured to present an optotype to the subject eye in at least two presentation positions different from each other, and a line-of-sight direction detection unit configured to extract a feature point from the anterior segment image that has been acquired by the image acquisition unit when the optotype has been presented in each of the at least two presentation positions, detect positional information on the anterior segment image of the feature point that has been extracted, and detect a line-of-sight direction of the subject eye on a basis of the positional information.
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公开(公告)号：US20220151486A1
公开(公告)日：2022-05-19
申请号：US17665586
申请日：2022-02-06
Applicant: Topcon Corporation
Inventor： Yoko TATARA , Suguru MIYAGAWA , Tatsuo YAMAGUCHI , Makoto SAIKA
Abstract: The ophthalmologic device to be coupled to a correcting device for correcting subject eyes, the correcting device including a right-left pair of two examination windows and a right-left pair of arrangement mechanisms that each arrange first optical elements, includes: a coupling member configured to be detachably coupled to each of coupled members provided on a side surface of the correcting device on a side opposite to an eyepiece side for each subject eye; a second optical element arranged at a position facing a second examination window opposite to a first examination window which is an eyepiece window, when the coupling member is coupled to the coupled member, the second optical element configured to branch a second optical path from a first optical path along the optical axes; and an objective measuring system arranged on the second optical path and configured to acquire ocular characteristics of each subject eye.
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公开(公告)号：US20240156339A1
公开(公告)日：2024-05-16
申请号：US18283586
申请日：2022-02-17
Applicant: TOPCON CORPORATION
Inventor： Hiroaki OKADA , Yoko TATARA
CPC classification number: A61B3/102 , A61B3/1005 , A61B3/103 , A61B3/107
Abstract: An ophthalmologic apparatus includes a first left eye measurement optical system for measurement of dimensional information in a front-back direction of a left eye, a second left eye measurement optical system for measurement of a corneal shape of the left eye, a third left eye measurement optical system for measurement of a refractive property of the left eye, a first right eye measurement optical system for measurement of dimensional information in a front-back direction of a right eye, a second right eye measurement optical system for measurement of a corneal shape of the right eye, a third right eye measurement optical system for measurement of a refractive property of the right eye, and a control unit to control the first, second and third left eye measurement optical systems and the first, second and third right eye measurement optical systems.
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公开(公告)号：US20240090761A1
公开(公告)日：2024-03-21
申请号：US18368945
申请日：2023-09-15
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Yoko TATARA , Makoto SAIKA
IPC: A61B3/103
CPC classification number: A61B3/103
Abstract: An ophthalmologic apparatus includes an objective measurement optical system that measures an objective refraction characteristic of a subject eye and a control portion that performs total control including control of the objective measurement optical system, wherein the control portion analyzes a characteristic amount of a ring image obtained by measuring the objective refraction characteristic of the subject eye to feedback to a subjective examination content of the subject eye according to an analysis result of the characteristic amount of the ring image.
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