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公开(公告)号：US20200077889A1
公开(公告)日：2020-03-12
申请号：US16616564
申请日：2018-05-25
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 1, wherein an observation optical system 400, an objective lens 2, and an OCT optical system 500 are placed in such a way that the optical axis of the OCT optical system O-500 does not penetrate through objective lens 2, and the optical axis of the observation optical system O-400 and the optical axis of the OCT optical system O-500 are non-coaxial, and wherein the ophthalmologic microscope further comprises a SLO optical system 1500 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 O-500.
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12.发明公开公开(公告)号：US20230397810A1
公开(公告)日：2023-12-14
申请号：US18033821
申请日：2020-12-09
Applicant: Topcon Corporation
Inventor： Kazuhiro YAMADA , Kazuhiro OOMORI , Yasufumi FUKUMA
CPC classification number: A61B3/13 , G06T7/0012 , G02B21/0012 , G02B21/365 , A61B3/14 , G06T2207/10056 , G06T2207/30041 , G06T2207/10016
Abstract: An ophthalmic observation apparatus according to an embodiment example includes a moving image generating unit, an analyzing processor, and a display controller. The moving image generating unit is configured to generate a moving image by photographing a subject's eye into which an artificial object has been inserted. The analyzing processor is configured to analyze a still image included in the moving image to identify a first site image corresponding to a predetermined site of the subject's eye and a second site image corresponding to a predetermined site of the artificial object. The display controller is configured to display, on a display device, the moving image, first position information that represents a position of the first site image, and second position information that represents a position of the second site image.
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Patent Agency Ranking
13.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：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：US20210068654A1
公开(公告)日：2021-03-11
申请号：US16642052
申请日：2018-08-28
Applicant: Topcon Corporation
Inventor： Yasufumi FUKUMA , Kazuhiro OOMORI
Abstract: [Problem] An object of the present invention is to provide an ophthalmic microscope capable of observing, and acquiring a tomographic image of, an anterior ocular segment and a posterior ocular segment without changing a positional relationship between an objective lens and a subject eye.
Another object of the invention is to provide a function expansion unit capable of incorporating, into an ophthalmic microscope of existing specifications, a function capable of observing, and acquiring a tomographic image of, an anterior ocular segment and a posterior ocular segment without changing a positional relationship between an objective lens and a subject eye.
[Solution] There is provided an ophthalmic microscope including an observation optical system having a first focal point in front of a subject eye; an objective auxiliary lens capable of being set in a position on the subject eye side of an objective lens in the observation optical system or capable of being released from the position, a focal point at a time when the objective auxiliary lens is set being set to a second focal point which is an anterior ocular segment position of the subject eye; and a front lens capable of being set in a position further toward the subject eye side than the first focal point or capable of being released from the position, a focal point through the crystalline lens of the subject eye at a time when the front lens is set being set to a third focal point which is a posterior ocular segment position of the subject eye, the objective auxiliary lens being set and the front lens being released during anterior ocular segment observation, and the front lens being set and the objective auxiliary lens being released during posterior ocular segment observation, without changing a positional relationship between the objective lens and the subject eye.-
公开(公告)号：US20200337552A1
公开(公告)日：2020-10-29
申请号：US16845928
申请日：2020-04-10
Applicant: Topcon Corporation
Inventor： Zhenguo WANG , Zaixing MAO , Hideharu SUZUKI , Kazuhiro OOMORI , Makoto FUJINO
Abstract: An ophthalmologic apparatus includes: an ophthalmologic apparatus body having: an objective lens that faces a subject's eye; a first illumination optical system that irradiates a cornea of the subject's eye with illumination light emitted from a first illumination light source along an optical axis overlapping an optical axis center of the objective lens; an interference image capturing camera that takes an image of a corneal reflection light through the objective lens and outputs an imaging signal; and a calculation unit that calculates, based on a corneal reflection image, of a corneal reflection light, input from the interference image capturing camera, a thickness of a tear fluid film at each position on the corneal surface; and a guide rail that supports the ophthalmologic apparatus body. The guide rail supports the ophthalmologic apparatus body in a rotatable manner such that an optical axis center of the objective lens is positioned obliquely with respect to a horizontal direction orthogonal to a gravity direction.
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公开(公告)号：US20200337551A1
公开(公告)日：2020-10-29
申请号：US16845747
申请日：2020-04-10
Applicant: Topcon Corporation
Inventor： Zhenguo WANG , Zaixing MAO , Kazuhiro OOMORI , Makoto FUJINO
Abstract: An ophthalmologic apparatus includes: an objective lens that faces a subject's eye; a first illumination optical system that irradiates a cornea of the subject's eye with illumination light; and a corneal measurement optical system having an imaging element that takes an image of a corneal reflection light, which is a reflection of the illumination light, through the objective lens, and outputs an imaging signal. The corneal measurement optical system includes a first mirror arranged near the objective lens and a second mirror arranged near the imaging element. The first and second mirrors and are configured such that the corneal reflection light that enters and is reflected from the first mirror, and then enters and is reflected from the second mirror exits toward an incident side from which the corneal reflection light enters a reflection surface of the first mirror.
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