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1. 发明公开

US20230284901A1 OPHTHALMIC DEVICE 审中-公开
公开(公告)号：US20230284901A1
公开(公告)日：2023-09-14
申请号：US18117066
申请日：2023-03-03
申请人： Tomey Corporation
发明人： Keiichiro Okamoto , Guangchun Bian
IPC分类号： A61B3/14 , A61B3/103 , A61B3/12 , A61B3/10 , A61B3/00
CPC分类号： A61B3/14 , A61B3/103 , A61B3/12 , A61B3/1015 , A61B3/0025
摘要： An ophthalmic device may include: a measurement optical system which includes a light-emitting optical system including a light source and a light-receiving optical system including a light receiving element; an arithmetic device configured to calculate an eye refractive power of the subject eye; a beam deflecting member arranged in an optical path of the measurement optical system and configured to deflect beam emitted from the light source, and a driving device configured to drive the beam deflecting member so that the beam emitted from the light source is scanned in a ring shape onto the subject eye. The beam deflecting member may be disposed so that traveling directions of the beam emitted from the light source intersect with each other between the subject eye and the beam deflecting member when the beam deflecting member is driven by the driving device.

2. 发明申请

US20210121061A1 OPHTHALMIC APPARATUS 有权
公开(公告)号：US20210121061A1
公开(公告)日：2021-04-29
申请号：US17141514
申请日：2021-01-05
申请人： Tomey Corporation
发明人： Keiichiro Okamoto , Takashi Kamo , Tomoki Hori
IPC分类号： A61B3/117 , A61B3/10
摘要： A ophthalmic apparatus may include: a first light source configured to output first light to be irradiated to an anterior segment of a subject eye; and a second light source configured to output second light to be irradiated to a retina of the subject eye. The apparatus may be configured capable of executing a first examination using the first light reflected from the anterior segment and a second examination using the second light reflected from the retina. A wavelength of the second light outputted from the second light source may be smaller than a wavelength of the first light outputted from the first light source.

3. 发明授权

US10733735B2 Ophthalmic apparatus 有权
公开(公告)号：US10733735B2
公开(公告)日：2020-08-04
申请号：US15843059
申请日：2017-12-15
申请人： Tomey Corporation
发明人： Keiichiro Okamoto , Fushi Li , Kenji Horikoshi
IPC分类号： G06T7/00 , A61B3/10 , A61B3/117 , A61B3/00 , A61B3/107 , G06T7/60
摘要： An ophthalmic apparatus that may include a processor; and a memory storing computer-readable instructions therein, the computer-readable instructions, when executed by the processor, causing the ophthalmic apparatus to perform: acquiring a two-dimensional tomographic image of the subjected eye; calculating a preoperative shape of the subjected eye based on a preoperative two-dimensional tomographic image of a preoperative subjected eye acquired by the acquiring of the two-dimensional tomographic image; calculating a postoperative shape of the subjected eye based on a postoperative two-dimensional tomographic image of a postoperative subjected eye acquired by the acquiring of the two-dimensional tomographic image; and calculating a displacement amount between a first reference axis obtained from the preoperative two-dimensional tomographic image of the preoperative subjected eye and a second reference axis obtained from the postoperative two-dimensional tomographic image of the postoperative subjected eye, based on the calculated preoperative shape and the calculated postoperative shape.

4. 发明授权

US10159407B2 Anterior eye tomographic image capturing apparatus 有权
公开(公告)号：US10159407B2
公开(公告)日：2018-12-25
申请号：US15296598
申请日：2016-10-18
申请人： Tomey Corporation
发明人： Fushi Li , Keiichiro Okamoto , Kenichi Hayashi
IPC分类号： A61B3/14 , A61B3/10 , A61B3/00 , A61B3/103 , A61B8/10 , A61B3/117
摘要： An anterior eye tomographic image capturing apparatus determining a power of an IOL (intraocular lens) is configured to acquire a tomographic image of an anterior eye along a straight line passing through a corneal apex of the anterior eye; identify a corneal apex position of the anterior eye, an equator position of a crystalline lens of the anterior eye, and a SS (scleral spur) position of the anterior eye based on the tomographic image; calculate an ELP (estimated lens position) based on a first distance from the corneal apex position to the SS position in a direction of a visual axis and a second distance from the SS position to the equator position in the direction of the visual axis; and determine the power of the IOL by using the ELP.

5. 发明申请

US20180174296A1 OPHTHALMIC APPARATUS 审中-公开
公开(公告)号：US20180174296A1
公开(公告)日：2018-06-21
申请号：US15843059
申请日：2017-12-15
申请人： Tomey Corporation
发明人： Keiichiro Okamoto , Fushi Li , Kenji Horikoshi
IPC分类号： G06T7/00 , A61B3/10 , A61B3/117 , A61B3/00 , A61B3/107 , G06T7/60
摘要： An ophthalmic apparatus that may include a processor; and a memory storing computer-readable instructions therein, the computer-readable instructions, when executed by the processor, causing the ophthalmic apparatus to perform: acquiring a two-dimensional tomographic image of the subjected eye; calculating a preoperative shape of the subjected eye based on a preoperative two-dimensional tomographic image of a preoperative subjected eye acquired by the acquiring of the two-dimensional tomographic image; calculating a postoperative shape of the subjected eye based on a postoperative two-dimensional tomographic image of a postoperative subjected eye acquired by the acquiring of the two-dimensional tomographic image; and calculating a displacement amount between a first reference axis obtained from the preoperative two-dimensional tomographic image of the preoperative subjected eye and a second reference axis obtained from the postoperative two-dimensional tomographic image of the postoperative subjected eye, based on the calculated preoperative shape and the calculated postoperative shape.

6. 发明授权

US11642019B2 Ophthalmic device 有权
公开(公告)号：US11642019B2
公开(公告)日：2023-05-09
申请号：US16999937
申请日：2020-08-21
申请人： Tomey Corporation
发明人： Naoko Hara , Chihiro Kato , Keiichiro Okamoto
IPC分类号： A61B3/10 , A61B3/14 , A61B3/00
CPC分类号： A61B3/102 , A61B3/0008 , A61B3/0041 , A61B3/14
摘要： An ophthalmic device includes a two-dimensional image acquisition unit that acquires a two-dimensional image by photographing the front of an eye to be examined with a color camera; a three-dimensional image acquisition unit that acquires a three-dimensional image of the eye to be examined by optical coherence tomography; and a correspondence definition data generation unit that generates correspondence definition data in which the position of a predetermined site of the eye to be examined in the three-dimensional image when the predetermined site is photographed as the three-dimensional image is associated with the position of the predetermined site in the two-dimensional image when the predetermined site is photographed as the two-dimensional image.

7. 发明授权

US11311191B2 Ophthalmic apparatus 有权
公开(公告)号：US11311191B2
公开(公告)日：2022-04-26
申请号：US16580123
申请日：2019-09-24
申请人： Tomey Corporation
发明人： Masahiro Yamanari , Keiichiro Okamoto , Hsinyuan Chuang
IPC分类号： A61B3/18 , A61B3/10 , A61B3/103 , A61B3/117 , A61B3/12
摘要： An ophthalmic apparatus may include a first light source configured to output a first light, a second light source configured to output a second light, a first interferometer configured to execute an examination of a first range using first interference light, and a second interferometer configured to execute an examination of a second range using second interference light, the second range being different from the first range. A central wavelength of the first light may be different from a central wavelength of the second light. A first optical path and a second optical path may at least partially overlap with each other, the first optical path being an optical path of the first light, and the second optical path being an optical path of the second light. The examination of the first range and the examination of the second range may be able to be executed simultaneously.

8. 发明授权

US11141056B2 Ophthalmic device 有权
公开(公告)号：US11141056B2
公开(公告)日：2021-10-12
申请号：US16427709
申请日：2019-05-31
申请人： Tomey Corporation
发明人： Keiichiro Okamoto , Risa Higashita , Chuang Hsin Yuan
IPC分类号： A61B3/00 , A61B3/14 , A61B3/10
摘要： An ophthalmic device that includes an image capturing unit configured to capture a tomographic image of a crystalline lens of a subject eye; a processor; and a memory storing computer-readable instructions therein. The computer-readable instructions, when executed by the processor, may cause the processor to execute: detecting a boundary between tissues in a tomographic image of the crystalline lens of the subject eye captured by the image capturing unit; determining whether the tissues defined by the boundary include an abnormality; and analyzing an analysis item associated with the abnormality.

9. 发明授权

US09808152B2 Anterior ocular segment optical coherence tomographic imaging device and anterior ocular segment optical coherence tomographic imaging method 有权
公开(公告)号：US09808152B2
公开(公告)日：2017-11-07
申请号：US15179511
申请日：2016-06-10
申请人： Tomey Corporation
发明人： Keiichiro Okamoto , Risa Higashita , Fushi Li , Makoto Kojima
IPC分类号： A61B3/14 , A61B3/00 , A61B3/117 , A61B3/10 , G06T7/12
CPC分类号： A61B3/1176 , A61B3/0025 , A61B3/102 , A61B3/117 , A61B3/14 , G06T7/12 , G06T2207/10101 , G06T2207/30041
摘要： An anterior ocular segment optical coherence tomographic imaging device and an anterior ocular segment optical coherence tomographic imaging method that can accurately analyze the shape of a crystalline lens by identifying the boundary of each layer of the crystalline lens in a tomographic image of an anterior ocular segment of a subject's eye, which is taken by optical coherence tomography. A layer boundary detector calculates brightness gradients from brightness values in a tomographic image of an anterior ocular segment of a subject's eye, which is taken by optical coherence tomography, in a depth direction of the tomographic image from a cornea to a retina, detect edges b1, b2, b3, and b4 that are larger than a predetermined threshold, and identify a boundary of each layer of the crystalline lens L from positions of the edge b1, b2, b3, and b4.

10. 发明授权

US09649028B2 Ophthalmological device 有权
公开(公告)号：US09649028B2
公开(公告)日：2017-05-16
申请号：US15008637
申请日：2016-01-28
申请人： Tomey Corporation
发明人： Chihiro Kato , Yuji Nozawa , Keiichiro Okamoto
IPC分类号： A61B3/10 , A61B3/107 , A61B3/00 , A61B3/14
CPC分类号： A61B3/107 , A61B3/0025 , A61B3/1005 , A61B3/102 , A61B3/14
摘要： An ophthalmological device calculates a cornea surface shape of an eye to be examined. The ophthalmological device includes a ring image photographic optical system configured to radiate a plurality of concentric ring light to the cornea surface of the eye and take reflected images of the plurality of ring light reflected from the cornea surface of the eye, an interference optical system configured to radiate measurement light to the eye and detect interfering light composed of reflected light of the measurement light reflected from the eye and predetermined reference light. The shape of the cornea anterior surface of the eye is calculated form the reflected images of the plurality of ring light, the thicknesses of the cornea of the eye at the plurality of incident positions is calculated from the interfering light, and the posterior surface shape of the cornea of the eye is calculated based on these two results.

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