公开(公告)号：US12150711B2

公开(公告)日：2024-11-26

申请号：US17319089

申请日：2021-05-13

Applicant: National University Corporation ASAHIKAWA MEDICAL UNIVERSITY ,  Topcon Corporation

Inventor： Akitoshi Yoshida ,  Kana Minamide ,  Masahiro Akiba ,  Jun Sakai

IPC: A61B3/12 ,  A61B3/10

Abstract: The blood flow analysis apparatus includes an acquisition unit and an extractor. The acquisition unit is configured to acquire blood flow information representing time-course changes in a blood flow velocity of a single retinal artery or retinal vein. The extractor is configured to extract one or more parameters corresponding to change in the blood flow velocity from the blood flow information.

公开(公告)号：US20240366082A1

公开(公告)日：2024-11-07

申请号：US18291850

申请日：2022-07-12

Applicant: TOPCON CORPORATION

Inventor： Takuya OKI ,  Masashi YAMAOKA

IPC: A61B3/00 ,  A61B3/15

Abstract: To provide an ophthalmic device in which an operator can objectively grasp a positional relationship between an eye to be examined and an acquisition optical system, and an operability when the operator controls a position or an orientation of the acquisition optical system can be improved, an ophthalmic device includes an acquisition optical system that acquires eye information of an eye to be examined; an electric position change mechanism that changes a position and an angle change mechanism that changes an orientation of the acquisition optical system with respect to the eye to be examined; a display that is visually recognizable by an operator who operates the electric position change mechanism and the angle change mechanism; and a controller that displays, on the display, positional relationship information indicating a positional relationship between the eye to be examined and the acquisition optical system.

公开(公告)号：US20240252039A1

公开(公告)日：2024-08-01

申请号：US18635441

申请日：2024-04-15

Applicant: TOPCON CORPORATION

Inventor： Syunichi MORISHIMA

IPC: A61B3/12

CPC classification number: A61B3/12

Abstract: An ophthalmic apparatus includes a light source, an iris aperture, a condensing member, a slit, and an image sensor. The light source is positioned substantially conjugate optically to an iris of an eye to be examined. The iris aperture is positioned substantially conjugate optically to the light source. In the iris aperture, an aperture is formed at an eccentric position from an optical axis. Illumination light from the light source passes through the aperture. The condensing member is positioned between the light source and the iris aperture. A slit is positioned substantially conjugate optically to a fundus of the eye to be examined. In the slit, a slit-shaped aperture is formed. The illumination light having passed through the aperture passes through the slit-shaped aperture. The image sensor is configured to receive returning light from the fundus illuminated by the illumination light having passed through the slit.

公开(公告)号：US20240245293A1

公开(公告)日：2024-07-25

申请号：US18410425

申请日：2024-01-11

Applicant: TOPCON CORPORATION

Inventor： Takumi UJIIE ,  Ryuichi OOHARA

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

CPC classification number: A61B3/117 ,  A61B3/0083 ,  A61B3/14 ,  A61B3/12

Abstract: An ophthalmologic apparatus includes a main body including a measurement optical system that measures eye characteristics of a subject eye; an anterior ocular segment camera provided in the main body to acquire an anterior ocular segment image by imaging an anterior ocular segment; and a controller that includes an alignment controller configured to control to adjust a relative positional relationship between the subject eye and the main body based on the anterior ocular segment image. The alignment controller includes an imaging start mode controller that is configured, when it is determined that the subject eye does not appear in the anterior ocular segment image in an imaging start mode by the anterior ocular segment camera, to calculate a predicted position of the subject eye based on image recognition of a face part in the anterior ocular segment image and to control movement toward the calculated predicted position.

公开(公告)号：US20240183801A1

公开(公告)日：2024-06-06

申请号：US18553283

申请日：2022-03-31

Applicant: TOPCON CORPORATION ,  RIKEN

Inventor： Shigenori NAGANO ,  Satoshi YANOBE ,  Akira YAJIMA ,  Hanako AIKOH ,  Satoru ISHIGURO ,  Yoshie OTAKE ,  Yasuo WAKABAYASHI ,  Masato TAKAMURA

IPC: G01N23/00 ,  G01N23/22

CPC classification number: G01N23/005 ,  G01N23/22 ,  G01N2223/204

Abstract: A nondestructive inspecting device 1 is provided with: a neutron beam emitting unit 10 capable of emitting a neutron beam in a prescribed emission direction D1; a gamma ray detecting unit 20 capable of detecting a gamma ray incident from a prescribed detection direction D2 intersecting the emission direction D1; a device housing 30 which covers the neutron beam emitting unit 10 and the gamma ray detecting unit 20, and in which an opening portion 30a is formed in the emission direction D1 and the detection direction D2; an outer shutter 31 for opening and closing the opening portion 30a of the device housing 30; an external dose monitor 41 for detecting a radiation dose inside the device housing 30; an internal dose monitor 42 for detecting a radiation dose outside the device housing 30; and a control unit 40 for prohibiting opening of the outer shutter 31 if the radiation dose detected by at least either of the dose monitors 41, 42 exceeds a predetermined threshold.

公开(公告)号：US12000699B2

公开(公告)日：2024-06-04

申请号：US17614880

申请日：2020-05-25

Applicant: TOPCON CORPORATION ,  RIKEN

Inventor： Homare Momiyama ,  Yoshiaki Sasaki ,  Isao Yoshimine ,  Chiko Otani ,  Tetsuya Yuasa

IPC: G01B9/02 ,  G01B9/02004 ,  G01B9/02091 ,  G01N21/01 ,  G01N21/45 ,  G01N21/47

CPC classification number: G01B9/02084 ,  G01B9/02004 ,  G01B9/02091 ,  G01N21/01 ,  G01N21/45 ,  G01N21/4795

Abstract: Provided is an optical interference measuring apparatus including a measuring unit for acquiring an interferogram of an interference wave obtained by irradiating a measuring target and a reference surface with electromagnetic waves and causing reflected waves from a reflecting surface of the measurement target and reflected waves from the reference surface to interfere and a signal processing unit for configuring an intensity profile in the depth direction by performing Fourier transform of the interferogram. The signal processing unit is configured to estimate a parameter for a model formula for an assumed surface count, based on the model formula of an interferogram when it is assumed that the measurement target has a predetermined structure, to select an optimal model by a statistical technique from the model formula to which a parameter estimated for the assumed surface count is applied, and to reconfigure an intensity profile based on the optimal model.

公开(公告)号：US11980416B2

公开(公告)日：2024-05-14

申请号：US17083312

申请日：2020-10-29

Applicant: TOPCON CORPORATION

Inventor： Ryoichi Hirose ,  Tatsuo Yamaguchi

IPC: A61B3/00 ,  A61B3/10

CPC classification number: A61B3/0025 ,  A61B3/1005 ,  A61B3/102

Abstract: An ophthalmologic information processing apparatus corrects an image of a subject's eye formed by arranging a plurality of A-scan images acquired by scanning inside the subject's eye with measurement light deflected around a scan center position. The ophthalmologic information processing apparatus includes a specifying unit and a transforming unit. The specifying unit is configured to specify a transformation position along a traveling direction of the measurement light passing through the scan center position, the transformation position corresponding to a pixel position in the image. The transforming unit is configured to transform the pixel position into the transformation position.

公开(公告)号：US20240130612A1

公开(公告)日：2024-04-25

申请号：US18404926

申请日：2024-01-05

Applicant: TOPCON CORPORATION

Inventor： Ryoichi HIROSE ,  Tatsuo YAMAGUCHI

IPC: A61B3/00 ,  A61B3/10

CPC classification number: A61B3/0025 ,  A61B3/1005 ,  A61B3/102

Abstract: An ophthalmologic information processing apparatus corrects an image of a subject's eye formed by arranging a plurality of A-scan images acquired by scanning inside the subject's eye with measurement light deflected around a scan center position. The ophthalmologic information processing apparatus includes a specifying unit and a transforming unit. The specifying unit is configured to specify a transformation position along a traveling direction of the measurement light passing through the scan center position, the transformation position corresponding to a pixel position in the image. The transforming unit is configured to transform the pixel position into the transformation position.

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.

公开(公告)号：US11925411B2

公开(公告)日：2024-03-12

申请号：US17179413

申请日：2021-02-19

Applicant: TOPCON CORPORATION

Inventor： Toshihiro Mino ,  Yoshikiyo Moriguchi ,  Akiko Ishikawa

IPC: A61B3/00 ,  A61B3/10 ,  A61B3/103 ,  G06T5/00 ,  G06T7/00

CPC classification number: A61B3/0025 ,  A61B3/0041 ,  A61B3/102 ,  A61B3/103 ,  G06T5/005 ,  G06T7/0012 ,  G06T2207/10101 ,  G06T2207/30041 ,  G06T2207/30168

Abstract: An ophthalmologic information processing apparatus according to the embodiments includes a search unit, a correction unit, and a display control unit. The search unit is configured to search for filter information for correcting an aberration in complex OCT data of a subject's eye so that a quality of the complex OCT data becomes a predetermined level. The correction unit is configured to correct the aberration in the complex OCT data based on the filter information searched by the search unit. The display control unit is configured to display, on a display means, aberration information on a pupil surface of the subject's eye corresponding to the filter information searched by the search unit.