公开(公告)号：US20240016472A1

公开(公告)日：2024-01-18

申请号：US18477861

申请日：2023-09-29

申请人： NIDEK CO., LTD.

发明人： Tsutomu UEMURA ,  Kazunari SHIMIZU ,  Koji HAMAGUCHI

IPC分类号： A61B8/10 ,  A61B3/16

CPC分类号： A61B8/10 ,  A61B3/165

摘要： An ultrasonic tonometer for measuring intraocular pressure of a subject eye by using an ultrasonic wave. The ultrasonic tonometer includes an irradiation unit configured to irradiate the subject eye with a focused ultrasonic wave, and a Z-alignment detection unit configured to detect an alignment state in a working distance direction with respect to the subject eye. An appropriate Z-alignment position is set to a position that is farther from the irradiation unit than is a geometric focal position of the irradiation unit. The appropriate Z-alignment position is detected by the Z-alignment detection unit.

公开(公告)号：US20210068656A1

公开(公告)日：2021-03-11

申请号：US17043317

申请日：2019-03-26

申请人： NIDEK CO., LTD.

发明人： Tetsuyuki MIWA ,  Kazunari SHIMIZU ,  Shirohisa KOBAYASHI ,  Tsutomu UEMURA ,  Kenji NAKAMURA

IPC分类号： A61B3/16

摘要： A non-contact ultrasonic tonometer for measuring the eye pressure of an examinee's eye by use of ultrasound includes a Langevin transducer. The Langevin transducer applies ultrasound to the examinee's eye to measure the eye pressure of the examinee's eye. Further, A non-contact ultrasonic tonometer for measuring the eye pressure of an examinee's eye by use of ultrasound includes: ultrasonic generating means for generating ultrasound; a support base supporting the ultrasonic generating means; and attaching means for attaching the ultrasonic generating means to the support base.

公开(公告)号：US20210076927A1

公开(公告)日：2021-03-18

申请号：US17016931

申请日：2020-09-10

申请人： NIDEK CO., LTD.

发明人： Shirohisa KOBAYASHI ,  Kunio SUZUKI ,  Hiroyoshi NAKANISHI ,  Kazunari SHIMIZU

IPC分类号： A61B3/00 ,  A61B3/10 ,  A61B3/16 ,  A61B3/15

摘要： Provided is an ophthalmic apparatus for examining an examinee's eye, including: an examination device configured to examine the examinee's eye; an approacher in the examination device, configured to approach the examinee; a detector configured to detect approach of the approacher to the examinee; and a controller configured to switch an operation mode between a first mode where an avoidance operation for avoiding the approach is performed and a second mode where the avoidance operation is not performed, upon the detector detecting the approach.

公开(公告)号：US20150327763A1

公开(公告)日：2015-11-19

申请号：US14714988

申请日：2015-05-18

申请人： NIDEK CO., LTD.

发明人： Kazunari SHIMIZU ,  Kenji NAKAMURA ,  Yusuke SAKASHITA

IPC分类号： A61B3/10 ,  A61B3/14 ,  A61B3/15

CPC分类号： A61B3/14 ,  A61B3/1005 ,  A61B3/145 ,  A61B3/152

摘要： A corneal endothelial cell photographing apparatus for photographing endothelial cells of a patient eye's cornea, includes: a cornea photographing optical system including an imaging device and configured to project light toward the cornea and photograph the corneal endothelial cells through the imaging device; a light projecting optical system to project detection light in a first oblique direction to the cornea to detect a focus state of the cornea photographing optical system relative to the cornea; a detecting optical system including a detector with arranged pixels and configured to receive, in a second oblique direction opposite to the first oblique direction, corneal reflection light resulting from the detection light and including reflection light from the corneal endothelium through the detector, and detect an intensity distribution of the corneal reflection light in a depth direction; and a controller to cause a monitor to display the intensity distribution output from the detector.

摘要翻译： 一种用于拍摄患者眼睛角膜内皮细胞的角膜内皮细胞摄影装置，包括：角膜摄影光学系统，其包括成像装置并且被配置为将光投射到角膜并通过成像装置拍摄角膜内皮细胞; 投影光学系统，用于将第一倾斜方向的检测光投影到角膜，以检测角膜摄影光学系统相对于角膜的聚焦状态; 一种检测光学系统，包括具有排列像素的检测器，并且被配置为在与第一倾斜方向相反的第二倾斜方向上接收由检测光产生的角膜反射光，并且包括来自角膜内皮的反射光通过检测器，并且检测 角膜反射光在深度方向的强度分布; 以及使监视器显示从检测器输出的强度分布的控制器。

公开(公告)号：US20190150735A1

公开(公告)日：2019-05-23

申请号：US16176808

申请日：2018-10-31

申请人： NIDEK CO., LTD.

发明人： Kazunari SHIMIZU ,  Kenji NAKAMURA ,  Toru ARIKAWA

IPC分类号： A61B3/15 ,  A61B3/16 ,  A61B3/00

摘要： An ophthalmic apparatus to examine an examinee's eye includes: a first optometry unit to perform a first examination of the examinee's eye; a second optometry unit to perform a second examination of the examinee's eye; a drive unit to cause relative movement of the first and second optometry units in three-dimensional manner relative to the examinee's eye; a controller to control the drive unit; a selection receiving unit to receive a selection signal representing at least one selected from the first second examinations; and a face photographing unit to photograph a face image including at least one of examinee's right and left eyes. The controller switches, according to the selection signal, between a first path for alignment of the first optometry unit with the eye detected from the face image and a second path for alignment of the second optometry unit with the eye detected from the face image.

公开(公告)号：US20170280990A1

公开(公告)日：2017-10-05

申请号：US15475854

申请日：2017-03-31

申请人： NIDEK CO., LTD.

发明人： Kazunari SHIMIZU ,  Shirohisa KOBAYASHI

IPC分类号： A61B3/00 ,  A61B3/103 ,  A61B3/10

CPC分类号： A61B3/0025 ,  A61B3/1015 ,  A61B3/103

摘要： A CPU of an eyeglass-prescription assisting apparatus is configured to obtain measurement data on an examinee's eye measured by a wavefront sensor, including first distribution data on a refractive error distribution of an examinee's eye and second distribution data on a refractive power distribution in an eyeglass lens to correct the refractive error of the examinee's eye. The CPU further makes arithmetic processing to obtain third distribution data on a refractive error distribution taking correction with the eyeglass lens into consideration based on the first distribution data and the second distribution data.

公开(公告)号：US20160095512A1

公开(公告)日：2016-04-07

申请号：US14876280

申请日：2015-10-06

申请人： NIDEK CO., LTD.

发明人： Kazunari SHIMIZU

IPC分类号： A61B3/00 ,  A61B3/04 ,  A61B3/103 ,  A61B3/10

CPC分类号： A61B3/0025 ,  A61B3/0033 ,  A61B3/0058 ,  A61B3/04 ,  A61B3/1015 ,  A61B3/103

摘要： An ophthalmic apparatus obtains naked-eye wavefront aberration data of an examinee's eye measured by an aberration measuring unit, and calculates first corrected wavefront aberration data intended for a prescription with a first correction power based on the naked-eye wavefront aberration data and the first correction power and generates a first evaluation index based on the first corrected wavefront aberration data. The ophthalmic apparatus further calculates second corrected wavefront aberration data intended for a prescription with a second correction power different from the first correction power in at least one of spherical power, astigmatic power, and astigmatic axis angle based on the naked-eye wavefront aberration data and the second correction power, and generates a second evaluation index based on the second corrected wavefront aberration data. The ophthalmic apparatus then displays the first and second evaluation indexes selectively or in parallel on a monitor.

摘要翻译： 眼科装置获得由像差测量单元测量的被检眼的裸眼波前像差数据，并且基于裸眼波面像差数据和第一校正来计算用于具有第一校正功率的处方的第一校正波面像差数据 并且基于第一校正的波前像差数据产生第一评估指标。 所述眼科装置还基于所述裸眼波面像差数据，以球面光焦度，散光光焦度和散光轴角度中的至少一个为基准计算用于具有与所述第一校正功率不同的第二校正功率的处方的第二校正波面像差数据，以及 第二校正功率，并且基于第二校正波阵面像差数据生成第二评估指标。 然后眼科装置在监视器上选择性地或并行地显示第一和第二评估指标。

公开(公告)号：US20150221125A1

公开(公告)日：2015-08-06

申请号：US14610058

申请日：2015-01-30

申请人： NIDEK CO., LTD.

发明人： Kazunari SHIMIZU ,  Yukinobu BAN ,  Tetsuya YAMAMOTO

IPC分类号： G06T15/08 ,  G06K9/00

CPC分类号： G06K9/0061 ,  A61B3/0025 ,  A61B3/10 ,  A61B3/1005 ,  A61B3/1015 ,  A61B3/103 ,  A61B3/107 ,  A61B3/112 ,  A61B3/117 ,  A61B3/14 ,  G06T2207/30041

摘要： An ophthalmic image processing method includes: acquiring information about characteristics of an examinee's eye including corneal information about the corneal anterior surface shape of the examinee's eye, and refractivity information about refraction of the examinees eye as a whole; generating a simulation image of a target image formed at fundus of the examinee's eye using the refractivity information; and simultaneously displaying an eyeball model image showing an eyeball structure, the simulation image, and a corneal information image associated with the cornea on the eyeball model image and corresponding to the corneal information.

摘要翻译： 一种眼科图像处理方法，包括：获取关于受检者眼睛的特征的信息，包括关于被检眼的角膜前表面形状的角膜信息，以及关于整个眼睛的折射的折射率信息; 使用折射率信息生成在被检眼的眼底形成的目标图像的模拟图像; 同时显示与眼球模型图像相关联的眼球结构，模拟图像和与角膜相关联的角膜信息图像的眼球模型图像，并且对应于角膜信息。

公开(公告)号：US20210259548A1

公开(公告)日：2021-08-26

申请号：US17255036

申请日：2019-07-02

申请人： NIDEK CO., LTD.

发明人： Tetsuyuki MIWA ,  Tsutomu UEMURA ,  Kazunari SHIMIZU

IPC分类号： A61B3/16 ,  A61B3/00

摘要： An ultrasonic tonometer for measuring the eye pressure of an examinee's eye by means of an ultrasonic wave includes an ultrasonic actuator having an ultrasonic element and configured to irradiate the examinee's eye with the ultrasonic wave, and current adjustment means configured to adjust a current applied to the ultrasonic element to control the sound pressure or acoustic radiation pressure of the ultrasonic wave. With this configuration, the ultrasonic tonometer solving at least one of typical problems can be provided. For example, the ultrasonic tonometer capable of properly irradiating the examinee's eye with the ultrasonic wave can be provided.

公开(公告)号：US20210186322A1

公开(公告)日：2021-06-24

申请号：US17113210

申请日：2020-12-07

申请人： NIDEK CO., LTD.

发明人： Michihiro TAKII ,  Masanori YATANI ,  Kazunari SHIMIZU ,  Tetsuya YAMAMOTO

IPC分类号： A61B3/103 ,  A61B3/12 ,  A61B3/00

摘要： There is provided an ophthalmologic measurement apparatus for measuring a subject eye. The apparatus includes measurement means for objectively measuring eye refractive power of the subject eye, acquisition means for acquiring intraocular lens information relating to an intraocular lens inserted into the subject eye, and correction means for correcting a measurement result of the eye refractive power, based on the intraocular lens information.