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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：US20190269319A1
公开(公告)日：2019-09-05
申请号：US16282435
申请日：2019-02-22
Applicant: NIDEK Co., Ltd.
Inventor： Ryosuke Shiba , Tetsuya Kano , Naoki Takeno
Abstract: An ophthalmological image processing apparatus includes an image obtaining portion for obtaining ophthalmological image data, which is captured by an imaging unit, of a subject eye, and an image processing portion for processing the ophthalmological image data. The image processing portion uses a first front image of the subject eye in a first depth region to correct a second front image of the subject eye captured in a second depth region which is different from the first depth region. The first front image and the second front image are constructed based on the ophthalmological image data. The ophthalmological image processing apparatus can reduce an artifact which is generated in an ophthalmological image.
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公开(公告)号：US20190223711A1
公开(公告)日：2019-07-25
申请号：US16336189
申请日：2018-06-14
Applicant: NIDEK CO., LTD.
Inventor： Gareguin Mikaelian
Abstract: A method of analyzing the degree of abnormality in the eye is provided, and in the method at least some portion of the functional evaluation of the eye's visual function is performed by presenting visual stimuli in mesopic conditions. A visual function examination device is provided, and in the device the spectral composition of the stimuli is generated by a projection or display device, and the said projection or display device can be adjusted so that individual receptor types can be excited by the said stimuli.
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35.发明申请公开(公告)号：US20190150726A1
公开(公告)日：2019-05-23
申请号：US16097060
申请日：2017-04-27
Applicant: NIDEK TECHNOLOGIES S.R.L. , NIDEK CO., LTD.
Inventor： Andrea DE GIUSTI , Simone PAJARO
Abstract: The method of creating and processing a color image of an iridocorneal region of an eye includes the preliminary step of calibrating a pair of a color image detector device and a color illuminator device; and the examination steps of: detecting the color image through the detector device including a bi-dimensional array of pixels, wherein the color image is in a color space defined by three color dimensions, selecting a sub-image within the detected image corresponding to a region of interest, computing a statistic parameter of the selected sub-image, wherein the statistic parameter is selected from the group including an average value, a variance value, a minimum value, a maximum value, a skewness value, a kurtosis index value, a distribution, and a distribution gradient of a color component, determining an indicator based on the statistic parameter through a statistical classifier, and providing the indicator as an examination result.
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Patent Agency Ranking
公开(公告)号：US20190125178A1
公开(公告)日：2019-05-02
申请号：US16173774
申请日：2018-10-29
Applicant: NIDEK CO., LTD.
Inventor： Keiji MURATA
Abstract: An ophthalmic imaging device includes a first optical system, a second optical system, and a wavelength splitting member. The first optical system irradiates light whose center wavelength is a first wavelength region being an infrared region. The first optical system includes an optical coherence tomography unit and an imaging element. The second optical system irradiates light whose center wavelength is in a second wavelength region. A wavelength of the second wavelength region is shorter than a wavelength of the first wavelength region. The second optical system includes a fixation light source and a short wavelength optical system. The wavelength splitting member is disposed on a common optical path of the measuring light, an anterior ocular segment photographing light, a fixation light, and a short wavelength light. The wavelength splitting member divides the common optical path into a first optical path and a second optical path.
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37.发明申请公开(公告)号：US20190118498A1
公开(公告)日：2019-04-25
申请号：US16220765
申请日：2018-12-14
Applicant: NIDEK CO., LTD.
Inventor： Yuji KANDA , Kyoji TAKEICHI , Hirohisa MIZUNO
Abstract: A spectacle lens processing device includes a drilling tool and a processor. The processor acquires a position of a hole formed in a lens and a pantoscopic angle. The pantoscopic angle is an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward. The processor determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole.
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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：US10238281B2
公开(公告)日：2019-03-26
申请号：US15422866
申请日：2017-02-02
Applicant: NIDEK CO., LTD.
Inventor： Naoki Isogai , Hideki Aono , Yukihiro Higuchi , Yuji Murase , Norimasa Satake , Keiji Murata
Abstract: An optical coherence tomography device includes an OCT optical system that irradiates a tissue of the subject's eye with measurement light from a light source, and detects interference between reference light and the measurement light reflected from the tissue by using a detector, and a processor, in which the processor performs a generation process of acquiring A-scan data based on a signal output from the detector in a cycle of 300 kilohertz or more and generating three-dimensional OCT data at any time based on the acquired A-scan data, and performs an analysis process on each piece of the three-dimensional OCT data generated at any time through the generation process, so as to output a real-time analysis result of the three-dimensional OCT data which is generated at any time.
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公开(公告)号：US20190038127A1
公开(公告)日：2019-02-07
申请号：US16052017
申请日：2018-08-01
Applicant: NIDEK CO., LTD.
Inventor： Koichi ITO
CPC classification number: A61B3/102 , A61B3/0025 , A61B3/12
Abstract: An OCT apparatus includes an OCT optical system, a processor that processes a signal from the OCT optical system, and a light guiding optical system disposed on a measurement light path of the OCT optical system. The light guiding optical system forms a pivot point, at which a measurement light turns based on motion of an optical scanner deflecting the measurement light, in an anterior portion of a subject eye, and guides the measurement light passed through the pivot point to a fundus. The OCT optical system includes a compensation unit that compensates for an amount of change in a light path length of the measurement light path between a state in which an angle-of-view switching optical system is inserted and a state in which the angle-of-view switching optical system is retracted.
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