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公开(公告)号：US20230329551A1
公开(公告)日：2023-10-19
申请号：US18340388
申请日：2023-06-23
Applicant: NIDEK CO., LTD.
Inventor： Kenji NAKAMURA , Toru Arikawa , Yukihiro Higuchi
CPC classification number: A61B3/152 , A61B3/0041
Abstract: An ophthalmic apparatus includes an examination unit examining a subject eye, a drive unit moving the examination unit relative to the subject eye, a first imaging unit capturing a face image, a second imaging unit capturing an anterior segment image of the subject eye, a controller, and first and second acquisition units. The controller performs an adjustment process including a position acquisition of the subject eye based on the face image, a first drive control such that the subject eye is positioned within an imaging range of the second imaging unit based on the acquired position, and a second drive control based on the anterior segment image to adjust a position of the examination unit relative to the subject eye. The first acquisition unit acquires the position of the subject eye through a detection. The second acquisition unit acquires the position of the subject eye through an input operation.
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公开(公告)号：US10582850B2
公开(公告)日：2020-03-10
申请号：US15623830
申请日：2017-06-15
Applicant: NIDEK CO., LTD.
Inventor： Norimasa Satake , Yukihiro Higuchi
Abstract: An OCT motion contrast data acquisition method using an optical coherence tomography device includes: controlling an optical scanner for scanning measurement light on a test subject; performing a first scanning control for obtaining a first OCT signal group including at least four temporally different OCT signals at a same scanning position; performing a second scanning control for obtaining a second OCT signal group including at least four temporally different OCT signals at the same scanning position; obtaining first motion contrast data based on the first OCT signal group obtained in the first scanning control; obtaining second motion contrast data based on the second OCT signal group obtained in the second scanning control; and obtaining third motion contrast data based on the first motion contrast data and the second motion contrast data.
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公开(公告)号：US10070780B2
公开(公告)日：2018-09-11
申请号：US15183288
申请日：2016-06-15
Applicant: NIDEK CO., LTD.
Inventor： Yuji Murase , Yukihiro Higuchi , Norimasa Satake
CPC classification number: A61B3/0033 , A61B3/0025 , A61B3/0041 , A61B3/005 , A61B3/102 , A61B3/1225 , A61B3/145
Abstract: An ophthalmologic photographing apparatus includes: a photographing optical system that includes a scanning unit for scanning an examinee's eye with measurement light to obtain a tomographic image of the examinee's eye; an observing optical system that includes a light-receiving device for receiving reflected light from the examinee's eye to obtain a moving image of a front image of the examinee's eye based on a light-receiving signal from the light-receiving device; a display controller for displaying the front image acquired by the observing optical system in a still state on a monitor as well as enabling setting of a capturing position of the tomographic image, the setting using the front image; and a drive controller for controlling the scanning unit to acquire the tomographic image in accordance with the capturing position.
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公开(公告)号：US09072459B2
公开(公告)日：2015-07-07
申请号：US13800509
申请日：2013-03-13
Applicant: Nidek Co., Ltd.
Inventor： Yukihiro Higuchi
CPC classification number: A61B3/102 , A61B5/0066 , G01B9/0203 , G01B9/02044 , G01B9/02063 , G01B9/02064 , G01B9/02068 , G01B9/02091 , G01B2290/70
Abstract: A fundus photographing apparatus is provided with: a detector that detects an interference state between light reflected from the fundus and reference light; an optical scanner that scans the fundus of an examinee's eye with the measurement light; a focus detection unit that detects a focus position with respect to the fundus of the examinee's eye based on an output signal from a light receiving element that receives the light reflected from the fundus; a focus adjustment unit that corrects the diopter scale with respect to the examinee fundus by moving a first optical member to the focus position; a second optical member disposed in the optical path of the measurement light or the reference light; and an optical path length adjustment unit that adjusts an optical path length difference between the measurement light and the reference light.
Abstract translation: 眼底摄影装置具有：检测器，其检测从眼底反射的光与参考光之间的干涉状态; 光学扫描器，用测量光扫描受检者眼睛的眼底; 焦点检测单元，其基于从接收从眼底反射的光的光接收元件的输出信号检测相对于被检眼的眼底的聚焦位置; 聚焦调节单元，通过将第一光学构件移动到聚焦位置来校正相对于被检眼底的屈光度标尺; 设置在测量光或参考光的光路中的第二光学构件; 以及光路长度调节单元，其调节测量光和参考光之间的光程长度差。
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公开(公告)号：US11478147B2
公开(公告)日：2022-10-25
申请号：US16698208
申请日：2019-11-27
Applicant: NIDEK CO., LTD.
Inventor： Yukihiro Higuchi
Abstract: An optometry system for examining a subject eye of an examinee includes an optometry device for examining the subject eye, an imaging unit that captures an image of an examination room including the examinee and the optometry device, and a remote operation unit that includes a display unit which displays an operation screen for operating the optometry device and an captured image captured by the imaging unit, and a display control unit which controls display of the display unit to display the operation screen and the captured image on the display unit. The remote operation unit enables an examiner to observe the captured image displayed on the display unit to guide the examinee to an examination position.
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Patent Agency Ranking
公开(公告)号：US11071452B2
公开(公告)日：2021-07-27
申请号：US14753927
申请日：2015-06-29
Applicant: NIDEK CO., LTD.
Inventor： Norimasa Satake , Yukihiro Higuchi , Yuji Murase , Yasuhiro Furuuchi , Hajime Namiki , Naoki Isogai , Masaaki Hanebuchi , Naoki Takeno
Abstract: The present disclosure relates to an optical coherence tomography (OCT) including: an OCT device, an OCT calculation method, and an OCT calculation program, enabling correlation between images to be easily performed; more specifically it relates to a case where a functional OCT image such as a motion contrast is acquired by using the OCT; acquiring the functional OCT image through a calculation process of an OCT signal is a time-consuming process, for this reason, a long time elapses until the point that a functional OCT image can be observed after OCT imaging is completed, and thus this causes stress to a subject and an examiner; the present disclosure provides an OCT device, an OCT calculation method, and an OCT calculation program, enabling a functional OCT image to be rapidly acquired and enables an examiner to easily perform diagnosis.
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公开(公告)号：US09055903B2
公开(公告)日：2015-06-16
申请号：US13827821
申请日：2013-03-14
Applicant: NIDEK CO., LTD.
Inventor： Yukihiro Higuchi
CPC classification number: A61B3/152 , A61B3/102 , A61B5/0066 , G01B9/0203 , G01B9/02063 , G01B9/02068 , G01B9/02091
Abstract: A fundus photographing apparatus includes a measurement unit including an optical coherence tomography system for obtaining a tomographic image of the fundus of an examinee's eye by detecting an interference state between measurement light from the fundus of the examinee's eye and reference light, a detection unit for detecting an alignment state perceived as a relative positional relationship between the measurement unit and the examinee's eye, and a controller for adjusting the optical coherence tomography system with respect to the fundus of the examinee's eye based on a detection result from the detection unit. The adjustment of the optical coherence tomography system includes at least one of an optical path length adjustment, which adjusts an optical path length difference between the measurement light and the reference light, and a focus adjustment.
Abstract translation: 眼底摄影装置包括：测量单元，其包括光学相干断层摄影系统，用于通过检测来自被检眼的眼底的测量光与参考光之间的干涉状态来获得被检眼的眼底的断层图像;检测单元， 感测为测量单元与受检者之间的相对位置关系的对准状态，以及基于来自检测单元的检测结果，调整光学相干断层摄影系统相对于被检眼的眼底的控制器。 光学相干断层摄影系统的调整包括调整测量光和参考光之间的光程长度差的光程长度调整和焦点调整中的至少一个。
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公开(公告)号：US09795291B2
公开(公告)日：2017-10-24
申请号：US15184211
申请日：2016-06-16
Applicant: NIDEK CO., LTD.
Inventor： Norimasa Satake , Yukihiro Higuchi , Naoki Takeno
CPC classification number: A61B3/102 , A61B3/113 , A61B3/1225
Abstract: An optical coherence tomography device includes: an OCT optical system configured to obtain a OCT signal; a front observation optical system configured to obtain a front image of the test substance; and a controller is configured to: control the OCT optical system to obtain first temporally different OCT signals with respect to the test substance; control the front observation optical system to obtain a first front image of the test substance at the time the first OCT signals are obtained; control the front observation optical system to obtain a second front image of the test substance after that; determine whether or not the plurality of first OCT signals are good based on a positional deviation between the first and second front images; and obtain motion contrast data of the test substance when it is determined that the plurality of first OCT signals are good.
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9.发明授权公开(公告)号：US11992265B2
公开(公告)日：2024-05-28
申请号：US17366809
申请日：2021-07-02
Applicant: NIDEK CO., LTD.
Inventor： Ryosuke Shiba , Tetsuya Kano , Yukihiro Higuchi
CPC classification number: A61B3/102 , A61B3/0058 , G06T7/0012 , G06T2207/10101 , G06T2207/30041
Abstract: There are provided an ophthalmologic information analysis apparatus and an ophthalmologic information analysis program capable of efficiently performing follow-up observation of a subject eye. There is provided: a central processing unit configured to: acquire first analysis data obtained by analyzing an analysis region of the subject eye in first OCT data including the analysis region; acquire second OCT data captured on a day different from that of the first OCT data; perform an analysis comprising: specifying the analysis region corresponding to the first analysis data from the second OCT data; and acquiring second analysis data obtained by analyzing the analysis region in the second OCT data; and control a display to display the first analysis data and the second analysis data in a comparable manner.
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公开(公告)号：US20210093186A1
公开(公告)日：2021-04-01
申请号：US17034742
申请日：2020-09-28
Applicant: NIDEK CO., LTD.
Inventor： Ryosuke Shiba , Yukihiro Higuchi , Shinya Iwata , Junpei Nishiyama , Hideki Aono , Hirofumi Yogo
Abstract: Provided are ophthalmologic image processing method, including an acquisition step of acquiring OCT data of an eye to be examined based on a spectral interference signal output from an OCT optical system, a setting step of setting a depth region including an image position of a tissue as an extraction region for data on one-direction side from a zero delay position in the OCT data, and a display control step of extracting extracted OCT data corresponding to the extraction region from the OCT data and displaying the extracted OCT data in a display region set in advance on a monitor, and an OCT apparatus that executes the method.
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