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公开(公告)号：US11534061B2
公开(公告)日：2022-12-27
申请号：US16585122
申请日：2019-09-27
Applicant: NIDEK CO., LTD.
Inventor： Michihiro Takii , Yukito Hirayama
Abstract: A subjective optometry apparatus includes an optometry unit having an optical member, being located in front of a subject eye, and changing optical characteristics of a target light flus with using the optical member, and a measurement optical system that has a light projecting optical system for applying measurement light emitted from a measurement light source to a fundus of the subject eye through the optometry unit, and a light receiving optical system in which a detector receives reflected light of the measurement light reflected on the fundus of the subject eye through the optometry unit, and that objectively measures the optical characteristics of the subject eye. An optical axis of the measurement optical system is set to be off-axis from an optical axis of the optical member in the optometry unit.
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公开(公告)号：US10470658B2
公开(公告)日：2019-11-12
申请号：US15710202
申请日：2017-09-20
Applicant: NIDEK CO., LTD.
Inventor： Michihiro Takii , Noriji Kawai , Taeko Horino , Hisashi Ochi , Kazunori Shibata
Abstract: An optometry apparatus includes: an optical characteristic measurement device configured to measure an optical characteristic of right and left subject eyes in a both-eye opened state by projecting a visual target onto the subject eyes; an anterior ocular segment acquisition device configured to acquire anterior ocular segment images of the right and left subject eyes by the optical characteristic measurement device during the measurement of the optical characteristic of the subject eye in the both-eye opened state; and a controller configured to execute: an analysis instruction for performing analysis processing on the anterior ocular segment images acquired by the anterior ocular segment acquisition device to acquire both-eye opened state information; a determination instruction for determining whether the both-eye opened state information acquired by the analysis instruction is favorable or not, to acquire determination information; and an output instruction for outputting the determination information acquired by the determination instruction.
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公开(公告)号：US10456035B2
公开(公告)日：2019-10-29
申请号：US15687156
申请日：2017-08-25
Applicant: NIDEK CO., LTD.
Inventor： Takayoshi Shibata , Michihiro Takii , Shinya Iwata
IPC: A61B3/00 , A61B3/13 , H04N13/239 , H04N13/296 , H04N13/398 , G02B21/00 , G02B21/22 , G02B21/36 , G02B21/24
Abstract: An ophthalmic surgical microscope includes an observation optical system configured to guide observation luminous fluxes for a right eye and a left eye from an observation object to an imaging device, an actuator configured to move a position of the observation optical system in at least a direction intersecting with the observation luminous fluxes, a processor, and a memory storing computer-readable instructions. The computer readable instructions, when executed by the processor, cause the ophthalmic surgical microscope to cause a stereoscopic image display to display an observation image to be observed with a right eye of a user and an observation image to be observed with a left eye of the user, detect a position of the observation object with respect to the observation optical system, and correct a deviation in a relative position of the observation optical system with respect to the observation object.
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公开(公告)号：US10264967B2
公开(公告)日：2019-04-23
申请号：US15694235
申请日：2017-09-01
Applicant: NIDEK CO., LTD.
Inventor： Michihiro Takii , Masaaki Hanebuchi , Noriji Kawai
Abstract: A subjective optometry apparatus includes subjective measurement unit for subjectively measuring an optical characteristic of a subject eye, the subjective measurement unit including a calibration optical system that is disposed in an optical path of a light projecting optical system projecting a visual target luminous flux toward the subject eye and changes an optical characteristic of the visual target luminous flux. The subjective optometry apparatus includes objective measurement unit for objectively measuring the optical characteristic of the subject eye, the objective measurement unit including a measurement optical system that emits measurement light to a fundus of the subject eye and receives reflected light of the measurement light. The subjective optometry apparatus includes controller for objectively measuring the optical characteristic of the subject eye by the objective measurement unit while the optical characteristic of the subject eye is subjectively measured by the subjective measurement unit.
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公开(公告)号：US11022430B2
公开(公告)日：2021-06-01
申请号：US16639971
申请日：2018-08-28
Applicant: NIDEK CO., LTD.
Inventor： Kyoji Takeichi , Michihiro Takii , Takaaki Matsui
IPC: G01B11/24
Abstract: An eyeglass frame shape measurement device measures a shape of an eyeglass frame. The eyeglass frame shape measurement device includes a light projecting optical system that has a light source and emits a measurement light flux from the light source toward a groove of a rim of an eyeglass frame, a light receiving optical system that has a detector and causes the detector to receive a reflected light flux of the measurement light flux emitted toward the groove and reflected by the groove, an acquiring means section that acquires a cross-sectional shape of the groove based on the reflected light flux received by the detector, a change section that change a light receiving position of the reflected light flux, and a control section that control the change section to change the light receiving position of the reflected light flux so that the detector receives the reflected light flux.
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Patent Agency Ranking
公开(公告)号：US10966604B2
公开(公告)日：2021-04-06
申请号：US16144374
申请日：2018-09-27
Applicant: NIDEK CO., LTD.
Inventor： Michihiro Takii , Masaki Tanaka , Masaaki Hanebuchi
Abstract: A subjective optometry apparatus includes a subjective measurement portion which subjectively measures optical characteristics of an subject eye, an objective measurement portion which objectively measures optical characteristics of the subject eye, a control portion which causes the objective measurement portion to objectively measure the optical characteristics during the measurement by the subjective measurement portion, and a display control portion which performs a control to display an eye diagram representing the subject eye and an imaging position of a target light flux incident on the subject eye. The display control portion performs a control to display the imaging position based on the objectively measured optical characteristics.
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公开(公告)号：US09655507B2
公开(公告)日：2017-05-23
申请号：US14354375
申请日：2012-11-01
Applicant: NIDEK CO., LTD.
Inventor： Michihiro Takii
CPC classification number: A61B3/0008 , A61B3/12 , A61B3/14 , A61B3/152 , A61B3/156 , H04N5/2256
Abstract: A corneal imaging device provided with an optical system for photographing a corneal portion of an eye, the optical system including an illumination optical system configured to irradiate illumination light toward a cornea and a light receiving optical system placed in a position inclined with respect to an optical axis of the illumination optical system configured to receive reflection light from the cornea by a photodetector, wherein the corneal imaging device includes light-limiting means provided in an optical path of the optical system for photographing the corneal portion of the eye and configured to limit light asymmetrically with respect to an optical axis.
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公开(公告)号：US20140092361A1
公开(公告)日：2014-04-03
申请号：US14037861
申请日：2013-09-26
Applicant: Nidek Co., Ltd.
Inventor： Michihiro Takii
CPC classification number: A61B3/165 , A61B3/1005
Abstract: A non-contact type tonometer includes: a measurement unit including a first measuring unit for measuring an eye pressure of an examinee's eye in a non-contact manner and a second measuring unit for measuring a corneal thickness of the examinee's eye in a non-contact manner; a moving mechanism for causing relative movement of the measurement unit with respect to the examinee's eye; a drive controller for driving the moving mechanism for aligning the measurement unit; and a setting switch controller for switching an alignment reference on the cornea used for aligning the measurement unit between first and second alignment references. The first alignment reference is a reference for measuring the eye pressure with the first measuring unit and the second alignment reference is a reference for measuring the corneal thickness with the second measuring unit and set closer to a corneal rear surface than the first alignment reference.
Abstract translation: 非接触式眼压计包括：测量单元，包括用于以非接触方式测量被检眼的眼压的第一测量单元和用于在非接触中测量被检眼的角膜厚度的第二测量单元 方式; 用于使测量单元相对于被检眼的相对移动的移动机构; 用于驱动用于对准测量单元的移动机构的驱动控制器; 以及设置开关控制器，用于切换用于在第一和第二对准基准之间对准测量单元的角膜上的对准基准。 第一对准基准是用于利用第一测量单元测量眼压的参考，第二对准参考是用于利用第二测量单元测量角膜厚度并且设置为比第一对准基准更靠近角膜后表面的参考。
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公开(公告)号：US10188282B2
公开(公告)日：2019-01-29
申请号：US15347915
申请日：2016-11-10
Applicant: NIDEK CO., LTD.
Inventor： Michihiro Takii , Masaaki Hanebuchi , Hisashi Ochi
IPC: A61B3/032 , A61B3/00 , A61B3/04 , A61B3/103 , A61B3/18 , G02B27/00 , A61B3/02 , A61B3/028 , A61B3/10
Abstract: 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.
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公开(公告)号：US09615972B2
公开(公告)日：2017-04-11
申请号：US14635651
申请日：2015-03-02
Applicant: NIDEK CO., LTD.
Inventor： Takayoshi Shibata , Masakazu Endo , Tomohiro Miyagi , Michihiro Takii , Masaaki Hanebuchi
CPC classification number: A61F9/009 , A61F9/008 , A61F9/00825 , A61F2009/00851
Abstract: An ophthalmic laser surgery apparatus includes an irradiation optical system and including an objective lens, and treats a patient's eye by using a laser beam. The ophthalmic laser surgery apparatus includes a delivery unit that includes an irradiation end unit, includes at least a portion of the irradiation optical system, and optically guides the laser beam, a first movement unit that includes a first drive section and integrally moves the irradiation end unit and an eyeball fixing unit which is connected to the delivery unit and fixes the patient's eye, a second movement unit that includes a second drive section and moves the eyeball fixing unit by driving the second drive section, and drive control means for controlling driving of the first drive section and driving of the second drive section, and individually moving the first movement unit and the second movement unit.
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