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公开(公告)号：US20230148860A1
公开(公告)日：2023-05-18
申请号：US17973569
申请日：2022-10-26
Applicant: Topcon Corporation
Inventor： Toshihiro MINO , Yahui WANG , Zhenguo WANG , Kinpui CHAN
CPC classification number: A61B3/102 , A61B3/1233 , A61B3/0025
Abstract: A scanning apparatus includes a scanner configured to move a scanning spot along a movement path to capture three-dimensional information of a target object. The movement path includes a plurality of b-scan paths performed along a c-scan path. The scanning apparatus also includes a processing circuit configured as a controller to control the movement path of the scanning spot. An area of the target object covered by the movement path may be independent of a length of the b-scan path. The processing circuit may be configured as an analyzer configured to determine a saturation time for each three-dimensional position within a portion of the target object based on an inter-scan time.
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公开(公告)号：US20180084991A1
公开(公告)日：2018-03-29
申请号：US15670234
申请日：2017-08-07
Applicant: TOPCON CORPORATION
Inventor： Masahiro SHIBUTANI , Ryoichi HIROSE , Toshihiro MINO
CPC classification number: A61B3/102 , A61B3/0025 , A61B3/0033 , A61B3/152
Abstract: An optical coherence tomography (OCT) apparatus according to an embodiment is configured to split light from a light source into measurement light and reference light, project the measurement light on an object, and detect interference light generated from the reference light and the measurement light returning from the object. The OCT apparatus includes a dispersion unit and an information generation unit. The dispersion unit is configured to relatively change a dispersion characteristic of a measurement optical path which is an optical path of the measurement light and a dispersion characteristic of a reference optical path which is an optical path of the reference light, according to an operation mode corresponding to a depth range. The information generation unit is configured to generate information on the object according to the operation mode, based on a detection result of the interference light.
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公开(公告)号：US20220265135A1
公开(公告)日：2022-08-25
申请号：US17179413
申请日：2021-02-19
Applicant: TOPCON CORPORATION
Inventor： Toshihiro MINO , Yoshikiyo MORIGUCHI , Akiko ISHIKAWA
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.
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4.发明申请公开(公告)号：US20200093364A1
公开(公告)日：2020-03-26
申请号：US16543625
申请日：2019-08-19
Applicant: TOPCON CORPORATION
Inventor： Ryoichi HIROSE , Toshihiro MINO , Tatsuo YAMAGUCHI
Abstract: An ophthalmic imaging apparatus of an exemplary aspect includes a data acquisition device, image constructing circuitry, and composing circuitry. The data acquisition device is configured to sequentially apply optical coherence tomography (OCT) scans to a plurality of regions different from each other of a fundus of a subject's eye in order and under a condition according to a fundus shape, to acquire a plurality of pieces of data corresponding to the plurality of regions. The image constructing circuitry is configured to construct an image from each of the plurality of pieces of data. The composing circuitry is configured to construct a composite image of a plurality of images constructed from the plurality of pieces of data by the image constructing circuitry.
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公开(公告)号：US20220313084A1
公开(公告)日：2022-10-06
申请号：US17642236
申请日：2020-09-10
Applicant: Topcon Corporation
Inventor： Jongsik KIM , Dawei LI , Toshihiro MINO , Zhenguo WANG , Kinpui CHAN
Abstract: An ophthalmological imaging device includes illumination optics having an illumination light source that outputs an illumination light, a scanner that redirects the illumination light toward a portion of an object to be imaged, and an optical image capture device including a camera that receives backscattered light that is scattered from the illumination light by the object and captures first and second images of the backscattered light. The device also includes a control processor that controls the scanner and the optical image capture device to cause the optical image capture device to capture the first and second images of the object. The first and second images are captured by the camera at different times and extracted from different portions of the backscattered light. The device also includes an image processor that generates a stereoscopic image from the first and second images of the object.
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Patent Agency Ranking
公开(公告)号：US20220265136A1
公开(公告)日：2022-08-25
申请号：US17179416
申请日：2021-02-19
Applicant: TOPCON CORPORATION
Inventor： Toshihiro MINO
Abstract: An ophthalmologic information processing apparatus according to the embodiments include a generator, an extractor, and a phase correction unit. The generator is configured to generate a phase difference profile by performing averaging processing in a depth direction on phase differences obtained by calculating for each depth position of A-lines between two adjacent B-frames of complex OCT data of a subject's eye. The extractor is configured to a phase drift from the phase difference profile generated by the generator. The phase correction unit is configured to correct a phase of first complex OCT data of any one of the two B-frames based on the phase drift extracted by the extractor.
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公开(公告)号：US20220192488A1
公开(公告)日：2022-06-23
申请号：US17692231
申请日：2022-03-11
Applicant: Topcon Corporation
Inventor： Toshihiro MINO , Jongsik KIM , Dawei LI , Zhenguo WANG , Kinpui CHAN
Abstract: An ophthalmic apparatus includes an illumination optical system, an imaging optical system, and a controller. The illumination optical system is configured to generate illumination light using light from a light source, and to illuminate a changeable illumination region on a predetermined site of a subject's eye with the illumination light having a light intensity corresponding to a size of the illumination region. The imaging optical system is configured to guide returning light of the illumination light from the subject's eye to a light receiving surface of an image sensor. The controller is configured to control the image sensor to set an opening range so as to overlap an illumination range of the returning light on the light receiving surface corresponding to the illumination region and to capture a light receiving result obtained by a light receiving element in the set opening range.
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8.发明申请公开(公告)号：US20200221947A1
公开(公告)日：2020-07-16
申请号：US16408483
申请日：2019-05-10
Applicant: TOPCON CORPORATION
Inventor： Toshihiro MINO , Jonathan LIU
Abstract: An ophthalmologic information processing apparatus includes an acquisition unit, a tissue specifying unit, and a specifying unit. The acquisition unit is configured to acquire a tomographic image of a subject's eye. The tissue specifying unit is configured to acquire first shape data representing shape of a tissue of the subject's eye by performing segmentation processing on each of a plurality of tomographic images acquired by the acquisition unit. The specifying unit is configured to obtain second shape data representing shape of the tissue based on the plurality of first shape data acquired by the tissue specifying unit.
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公开(公告)号：US20240000310A1
公开(公告)日：2024-01-04
申请号：US18226802
申请日：2023-07-27
Applicant: Topcon Corporation
Inventor： Toshihiro MINO , Shuyun YEH , Masashi NAKAJIMA , Yasufumi FUKUMA
CPC classification number: A61B3/1005 , A61B3/0025 , A61B3/107 , A61B3/185 , A61B3/117 , A61B3/102 , A61B3/12 , A61B3/135 , A61B3/0058
Abstract: An ophthalmic information processing apparatus includes an acquisition unit and a normalizer. The acquisition unit is configured to acquire eye shape data or an intraocular distance of an eye of a subject. The normalizer is configured to normalize the eye shape data or the intraocular distance based on body data of the subject or a refractive power of the eye of the subject.
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10.发明申请公开(公告)号：US20210068651A1
公开(公告)日：2021-03-11
申请号：US17013695
申请日：2020-09-07
Applicant: University of Tsukuba , TOPCON CORPORATION
Inventor： Yoshiaki YASUNO , Shuichi MAKITA , Tatsuo YAMAGUCHI , Toshihiro MINO
Abstract: In a scanning imaging apparatus of some aspect examples, a scanner applies an optical scan to a sample to acquire data. A scan controller controls the scanner to sequentially apply, to the sample, pattern scans according to a two-dimensional pattern including cycles. A movement unit relatively moves a scan area corresponding to the two-dimensional pattern and the sample. A movement controller controls the movement unit such that cycles in first and second scans of the pattern scans cross each other. An image constructing unit constructs an image based on data acquired under controls performed by the scan controller and the movement controller. The scan controller and the movement controller perform controls of the scanner and the movement unit respectively such that first and second cycles in a pattern scan cross each other at least at one point.
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