公开(公告)号：US10881295B2

公开(公告)日：2021-01-05

申请号：US16046244

申请日：2018-07-26

Applicant: TOPCON CORPORATION

Inventor： Hisashi Tsukada ,  Yasufumi Fukuma

IPC: A61B3/135 ,  A61B3/00 ,  A61B3/14

Abstract: An ophthalmic system of an embodiment includes a slit lamp microscope and an information processing apparatus. The slit lamp microscope includes an image acquisition device that acquires a three dimensional image by photographing a subject's eye, and a first communication device that transmits the three dimensional image to the information processing apparatus. The information processing apparatus includes a second communication device that receives the three dimensional image transmitted by the first communication device, a display controller that displays a first image based on the three dimensional image on a display device, a partial region designation processor that designates a partial region of the first image, and a rendering processor that renders the three dimensional image based on the partial region to construct a second image. The display controller displays the second image on the display device.

公开(公告)号：US20200100673A1

公开(公告)日：2020-04-02

申请号：US16146144

申请日：2018-09-28

Applicant: TOPCON CORPORATION

Inventor： Hitoshi SHIMIZU ,  Masashi Nakajima ,  Tony H. Ko ,  Jonathan Liu ,  Yasufumi Fukuma

IPC: A61B3/12 ,  A61B3/10 ,  A61B3/00 ,  A61B3/14

Abstract: An ophthalmologic apparatus according to the embodiments includes an OCT optical system, an alignment unit, an image forming unit, a first calculator, and a second calculator. The OCT optical system is configured to acquire OCT data of a fundus of a subject's eye by projecting measurement light onto the fundus. The alignment unit is configured to perform alignment of the OCT optical system with reference to a predetermined site of the subject's eye. The image forming unit is configured to form a tomographic image of the fundus based on the OCT data acquired by the OCT optical system which has been aligned by the alignment unit. The first calculator is configured to calculate a first tilt angle of the tomographic image. The second calculator is configured to calculate a second tilt angle of the fundus by correcting the first tilt angle based on alignment result of the OCT optical system with respect to the predetermined site by the alignment unit.

公开(公告)号：US11880943B2

公开(公告)日：2024-01-23

申请号：US17727847

申请日：2022-04-25

Applicant: Topcon Corporation

Inventor： Yasufumi Fukuma ,  Satoshi Yanobe

IPC: G06T19/00 ,  G06F18/214

CPC classification number: G06T19/003 ,  G06F18/214

Abstract: The data set receiving unit 13 of the information processing apparatus 1 of an aspect example receives a data set that includes at least BIM data. The route setting processor 151 sets a route, which is arranged inside and/or outside a virtual building represented by the BIM data, based on the data set received. The virtual image set generating processor 152 generates a virtual image set of the virtual building along the route, based on the received data set and the set route. The inference model creating processor 153 creates an inference model by applying machine learning with training data that includes at least the generated virtual image set to a neural network. The inference model created is used to identify data of a building material from data acquired by measuring a building.

公开(公告)号：US11503996B2

公开(公告)日：2022-11-22

申请号：US16610259

申请日：2018-05-02

Applicant: Topcon Corporation

Inventor： Yasufumi Fukuma ,  Kazuhiro Oomori

IPC: A61B3/10 ,  A61B3/13

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 comprising; an illuminating optical system 300, an observation optical system 400; an objective lens 2; and an OCT optical system 500, characterized in that the optical axis O-500 of the OCT optical system does not penetrate through the objective lens 2, it comprises objective lens for OCT 507 through which the optical axis O-500 of the OCT optical system penetrates, and deflection optical elements 503a, 503b for scanning of the OCT optical system and the objective lens for OCT 507 are in a substantially optically conjugate positional relation.

公开(公告)号：US11375892B2

公开(公告)日：2022-07-05

申请号：US16916154

申请日：2020-06-30

Applicant: TOPCON CORPORATION

Inventor： Hisashi Tsukada ,  Atsushi Kubota ,  Yasufumi Fukuma

IPC: G01B9/02 ,  A61B3/10 ,  A61B5/00 ,  G01B9/02091 ,  G06T7/32 ,  A61B3/00 ,  A61B3/12 ,  G06T3/00 ,  G06T3/20 ,  G06T3/60

Abstract: An exemplary aspect is a method of processing data acquired by applying an optical coherence tomography (OCT) scan to a sample. The method includes preparing a three dimensional data set acquired from a sample, creating a two dimensional map based on representative intensity values of a plurality of pieces of A-scan data included in the three dimensional data set, placing the three dimensional data set based on the two dimensional map, and executing a process based on at least a partial data set of the three dimensional data set on which placement based on the two dimensional map has been performed.

公开(公告)号：US11013401B2

公开(公告)日：2021-05-25

申请号：US16200676

申请日：2018-11-27

Applicant: Topcon Corporation

Inventor： Yasufumi Fukuma ,  Hideharu Suzuki ,  Zhenguo Wang ,  Kazuhiro Oomori ,  Makoto Fujino

IPC: A61B3/10 ,  A61B3/00 ,  A61B5/00 ,  A61B3/14 ,  A61B3/117

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.

公开(公告)号：US12262948B2

公开(公告)日：2025-04-01

申请号：US16642066

申请日：2018-07-09

Applicant: Topcon Corporation

Inventor： Yasufumi Fukuma ,  Kazuhiro Oomori ,  Hisashi Tsukada

IPC: A61B3/10 ,  A61B3/00 ,  A61B3/13

Abstract: The present disclosure provides a microscope including a first optical member configured to guide light from a light source in a first optical axis direction; a first reflecting member configured to guide the light guided in the first optical axis direction in a second optical axis direction substantially orthogonal to the first optical axis direction; a second optical member configured to relay the light guided in the second optical axis direction; a second reflecting member configured to guide the light relayed by the second optical member in a third optical axis direction substantially orthogonal to the second optical axis direction; and a function expansion objective lens disposed on the third optical axis direction and configured to radiate the light guided in the third optical axis direction onto a predetermined portion of the observation target.

公开(公告)号：US12226160B2

公开(公告)日：2025-02-18

申请号：US18378711

申请日：2023-10-11

Applicant: TOPCON CORPORATION

Inventor： Yasufumi Fukuma ,  Hisashi Tsukada ,  Atsushi Kubota

IPC: G06K9/00 ,  A61B3/00 ,  A61B3/10 ,  A61B3/12 ,  A61B5/00 ,  G01B9/02 ,  G01B9/02091 ,  G06T3/14 ,  G06T3/20 ,  G06T3/60 ,  G06T7/32

Abstract: An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.

公开(公告)号：US12220173B2

公开(公告)日：2025-02-11

申请号：US16976782

申请日：2019-03-13

Applicant: TOPCON CORPORATION

Inventor： Kazuhiro Ohmori ,  Yasufumi Fukuma ,  Satoshi Yamamoto

IPC: A61B3/135 ,  A61B3/00 ,  A61B3/14

Abstract: A slit lamp microscope of an aspect example includes an illumination system, first photographing system, fixation system, movement mechanism, and controller. The illumination system projects slit light onto an anterior segment of a subject's eye from a first direction. The first photographing system photographs the anterior segment onto which the slit light is being projected, from a second direction different from the first direction. The fixation system outputs fixation light for fixation of the subject's eye. The movement mechanism moves the illumination system and the first photographing system. the controller performs a first control for the movement mechanism to move at least the illumination system and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other while causing the fixation system to output the fixation light.

公开(公告)号：US11925415B2

公开(公告)日：2024-03-12

申请号：US16980452

申请日：2019-03-13

Applicant: TOPCON CORPORATION

Inventor： Kazuhiro Ohmori ,  Yasufumi Fukuma ,  Satoshi Yamamoto

IPC: A61B3/135 ,  A61B3/00 ,  A61B3/117 ,  A61B3/14

CPC classification number: A61B3/135 ,  A61B3/0008 ,  A61B3/0041 ,  A61B3/0075 ,  A61B3/0091 ,  A61B3/117 ,  A61B3/14

Abstract: A slit lamp microscope of some embodiment examples includes an illumination system, first photographing system, first movement mechanism, and controller. The illumination system includes a slit forming unit that forms a slit for generating slit light and projects the slit light onto an anterior segment of a subject's eye from a first direction. The first photographing system photographs the anterior segment onto which the slit light is being projected, from a second direction different from the first direction. The first movement mechanism moves a movable portion that includes at least the slit forming unit. The controller performs a first control for the first movement mechanism to move the movable portion and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other.