公开(公告)号：US20190274541A1

公开(公告)日：2019-09-12

申请号：US16281441

申请日：2019-02-21

申请人： NIDEK CO., LTD.

发明人： Yukihiro HIGUCHI ,  Tetsuya KANO ,  Ryosuke SHIBA

IPC分类号： A61B3/10 ,  A61B3/14 ,  A61B5/00

摘要： An OCT data processing device includes a processor that performs acquiring three-dimensional OCT data. The three-dimensional OCT data is OCT data of a tissue of a subject's eye acquired by an OCT device and is obtained by irradiating measurement light on a two-dimensional measurement region. The two-dimensional measurement region extends in a direction intersecting an optical axis of the measurement light. The processor further preforms setting a line pattern, from among a plurality of types of line pattern, with respect to the two-dimensional measurement region for which the three-dimensional OCT data is obtained, at least one of an arrangement, a number, or a shape of one or more lines being different for the plurality of types of line pattern, and extracting, from the three-dimensional OCT data, a two-dimensional tomographic image of a cross section intersecting each of the one or more lines of the set line pattern.

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：US10213100B2

公开(公告)日：2019-02-26

申请号：US14753274

申请日：2015-06-29

申请人： NIDEK CO., LTD.

发明人： Naoki Takeno ,  Yasuhiro Furuuchi ,  Hajime Namiki

IPC分类号： A61B3/10 ,  A61B5/02 ,  A61B5/00 ,  G01N21/47 ,  A61B5/026 ,  A61B3/00 ,  A61B3/14 ,  A61B3/113

摘要： An optical coherence tomography apparatus includes an OCT optical system configured to detect an OCT signal based on measurement light scanned on scan positions of a subject including a blood vessel network by a scanning unit and reference light. The optical coherence tomography apparatus is configured to execute: a signal processing instruction of processing OCT signals which are temporally different from each other with respect to a same position on the subject and generating a motion contrast image which images distribution of a moving object in a depth direction at each of the scan positions based on the OCT signals; and a detecting instruction of analyzing a profile in the depth direction of the motion contrast image generated by the signal processing unit and detecting a change resulting from the blood vessel to detect the blood vessel network included in the subject.

公开(公告)号：US10188282B2

公开(公告)日：2019-01-29

申请号：US15347915

申请日：2016-11-10

申请人： NIDEK CO., LTD.

发明人： Michihiro Takii ,  Masaaki Hanebuchi ,  Hisashi Ochi

IPC分类号： A61B3/032 ,  A61B3/00 ,  A61B3/04 ,  A61B3/103 ,  A61B3/18 ,  G02B27/00 ,  A61B3/02 ,  A61B3/028 ,  A61B3/10

摘要： A subjective optometry apparatus includes: a subjective measurer including a light projecting optical system, a corrective optical system including a right-eye corrective optical system and a left-eye corrective optical system, and an optical member for guiding the target light flux corrected by the corrective optical system to an examinee's eye, the subjective measurer subjectively measuring an optical characteristic of the examinee's eye; and an objective measurer including a measurement optical system for emitting measurement light to a fundus of the examinee's eye and for receiving reflected light from the fundus, the objective measurer objectively measuring the optical characteristic of the examinee's eye via the optical member disposed on an optical path of the measurement optical system.

公开(公告)号：US10108847B2

公开(公告)日：2018-10-23

申请号：US14631042

申请日：2015-02-25

申请人： NIDEK CO., LTD.

发明人： Toru Arikawa ,  Yoshihiro Ozaki

IPC分类号： G06K9/00 ,  G02C13/00

摘要： An eyeglass wearing image analysis device includes: an acquisition unit that acquires eyeglass frame type information; and a controller that performs a control operation based on the eyeglass frame type information.

公开(公告)号：US20180296085A1

公开(公告)日：2018-10-18

申请号：US15942016

申请日：2018-03-30

申请人： NIDEK CO., LTD.

发明人： Michihiro TAKII ,  Masaaki HANEBUCHI ,  Hisashi OCHI

IPC分类号： A61B3/032

摘要： A subjective optometry apparatus includes a light projecting optical system which projects a target light flux toward an examinee's eye to project a visual target onto the examinee's eye, a calibration optical system which is disposed in an optical path from the light projecting optical system to the examinee's eye and changes optical characteristics of the target light flux, an optical member which guides the target light flux of which the optical characteristics is changed by the calibration optical system to the examinee's eye, a light deflection section being different from the calibration optical system, which includes light deflection members provided in a left and right pair and a driving section which rotationally drives the light deflection members, and deflects the target light flux by rotating the light deflection members, and a control section which controls the light deflection section based on prism information to deflect the target light flux.

公开(公告)号：US10085631B2

公开(公告)日：2018-10-02

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 ,  A61B3/10 ,  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：US20180256022A1

公开(公告)日：2018-09-13

申请号：US15913029

申请日：2018-03-06

申请人： NIDEK CO., LTD.

发明人： Michihiro TAKII ,  Masaaki HANEBUCHI ,  Hisashi OCHI ,  Sasagu TACHIBANA

IPC分类号： A61B3/00 ,  A61B3/028

CPC分类号： A61B3/0008 ,  A61B3/0091 ,  A61B3/028 ,  A61B3/103 ,  A61B3/152 ,  A61B2560/0223

摘要： A subjective optometry apparatus includes a light projecting optical system that projects a target light flux to an examinee's eye, a fixed optical element that guides an image of the target light flux to the examinee's eye so as to have an optically predetermined examination length, a calibration optical system disposed in an optical path of the light projecting optical system to change optical characteristics of the examinee's eye, a measurement unit that accommodates the light projecting optical system; a positional information acquiring portion that acquires positional information of the measurement unit, a correction amount setting portion that sets a correction amount for correcting a projection magnification of the target light flux projected to the examinee's eye, based on the positional information, and a correction portion that corrects the projection magnification of the target light flux based on the correction amount set by the correction amount setting portion.

公开(公告)号：US10046434B2

公开(公告)日：2018-08-14

申请号：US13435609

申请日：2012-03-30

申请人： Katsuhiro Natsume ,  Kyoji Takeichi

发明人： Katsuhiro Natsume ,  Kyoji Takeichi

IPC分类号： B24B49/10 ,  B24B9/14 ,  B24B51/00

摘要： An eyeglass lens periphery processing apparatus for processing an eyeglass lens includes: a lens shuck shaft holding the eyeglass lens; a data input unit inputting target lens shape data and layout data of an optical center of the lens with respect to the target lens shape; left and right lens selecting unit inputting a selection signal as to whether the lens held by the lens chuck shaft is a right lens or a left lens; a lens shape detecting unit detecting the lens shape; a confirming unit confirming whether the lens held by the lens chuck shaft is the correct one of the right lens and the left lens based on the detecting result of the lens shape detecting unit, the layout data and the selection signal; and a notifying unit notifying the confirming result of the confirming unit.

公开(公告)号：US20180064336A1

公开(公告)日：2018-03-08

申请号：US15696855

申请日：2017-09-06

申请人： NIDEK CO., LTD.

发明人： Tetsuya KANO ,  Norimasa SATAKE ,  Yukihiro HIGUCHI ,  Yasuhiro FURUUCHI

IPC分类号： A61B3/12 ,  G06T7/00 ,  G06T3/00 ,  G06T5/50 ,  G06T7/11 ,  A61B3/10 ,  A61B3/00

摘要： An ophthalmic analysis apparatus for analyzing OCT motion contrast (MC) image data of a subject's eye acquired using an OCT apparatus for ophthalmology includes analysis process means for analyzing the OCT MC image data, in which the analysis process means generates OCT blood vessel change data including temporal change information in relation to a blood vessel region of the subject's eye based on first OCT MC image data and second OCT MC image data acquired at mutually different times.