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公开(公告)号：US20210302761A1
公开(公告)日：2021-09-30
申请号：US17212582
申请日：2021-03-25
Applicant: HOYA LENS THAILAND LTD.
Inventor： Eiichiro YAMAGUCHI , Toshiaki SONEHARA , Ayumu ITO
Abstract: A pair of progressive power lenses and related techniques thereof are provided, wherein a power distribution on a horizontal cross-section of the right eye lens has a peak at a position that is away from a main gaze line, and a power distribution on a horizontal cross-section of the left eye lens has a peak at a position that is away from a main gaze line in a direction opposite to that of the right eye lens.
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公开(公告)号：US20220100001A1
公开(公告)日：2022-03-31
申请号：US17491018
申请日：2021-09-30
Applicant: HOYA LENS THAILAND LTD.
Inventor： Eiichiro YAMAGUCHI , Toshiaki SONEHARA , Ayumu ITO
Abstract: Provided is technology that makes it possible to measure visual behavior with respect to objects that are at different distances in the depth direction, while reducing burden on a subject. A method for measuring visual behavior of a subject to design an eyeglass lens includes: a step (a) of ascertaining a head rotation amount that is generated by the subject in a sagittal plane of the subject when gazing at each of a plurality of gaze points that are set at predetermined distances different from each other in a forward depth direction; and a step (b) of determining an eyeball rotation amount that is generated by the subject when gazing at each of the plurality of gaze points, based on the head rotation amount.
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公开(公告)号：US20220183554A1
公开(公告)日：2022-06-16
申请号：US17599795
申请日：2020-03-26
Applicant: HOYA LENS THAILAND LTD.
Inventor： Nagisa ISHIHARA , Eiichiro YAMAGUCHI , Ayumu ITO , Toshiaki SONEHARA
Abstract: A measuring method for measuring rotation characteristics of an eyeball of a subject includes: showing display information on a display screen, at a position separated from a reference position, the display screen being shown in front of the eyeball of the subject by a display device that is secured to a head of the subject, the reference position being where a front line of sight of the eyeball of the subject who looks forward straightly, crosses the display screen; changing a direction of a line of sight from the eyeball to the display information by switching the display information to other contents while changing a displayed position of the display information; and judging whether the subject can recognize the contents of the display information at the changed position, to measure the rotation characteristics of the eyeball.
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公开(公告)号：US20180157062A1
公开(公告)日：2018-06-07
申请号：US15576262
申请日：2016-05-26
Applicant: Hiroshi ASAMI , Ayumu ITO , HOYA LENS THAILAND LTD.
Inventor： Hiroshi ASAMI , Ayumu ITO
Abstract: When an addition power at a position corresponding to a fitting point within a prescription addition power is greater than a target addition power set according to a target distance, the target addition power is set as an addition power between a progression-start point and a progression-end point on a principal meridian, and in addition the average gradient of an addition power between the progression-start point and the fitting point is set to differ from an average gradient of an addition power between the fitting point and the progression-end point. When the addition power at the position corresponding to the fitting point within the prescription addition power is equal to or smaller than the target addition power, a gradient of the addition power is made constant in a partial region including at least the fitting point between the progression-start point and the progression-end point on the principal meridian.
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公开(公告)号：US20220257110A1
公开(公告)日：2022-08-18
申请号：US17624823
申请日：2020-08-24
Applicant: Ayumu ITO , Toshiaki SONEHARA , Nagisa ISHIHARA , Eiichiro YAMAGUCHI , HOYA LENS THAILAND LTD.
Inventor： Ayumu ITO , Toshiaki SONEHARA , Nagisa ISHIHARA , Eiichiro YAMAGUCHI
Abstract: A binocular visual function measurement method including a visual target presentation step of a right eye image viewed by the right eye of a measurement subject and a left eye image viewed by the left eye of the measurement subject to the measurement subject on a single portable display screen; a presentation control step of changing positions where the right eye image and the left eye image are presented, relative to each other; a timing detection step of detecting a timing at which the measurement subject is unable to fuse the right eye image and the left eye image when the presentation positions are changed; and a parameter value calculation step of calculating a predetermined parameter value regarding a binocular visual function of the measurement subject based on a relationship between the relative positions of the right eye image and the left eye image when the timing is detected.
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Patent Agency Ranking
公开(公告)号：US20220100002A1
公开(公告)日：2022-03-31
申请号：US17491129
申请日：2021-09-30
Applicant: HOYA LENS THAILAND LTD.
Inventor： Eiichiro YAMAGUCHI , Toshiaki SONEHARA , Ayumu ITO
IPC: G02C7/02
Abstract: Provided is technology that makes it possible to design a progressive power lens appropriate for visual behavior of a subject. A method for designing a progressive power lens includes: a step (a) of determining a relationship between a line-of-sight passage position on a surface of a progressive power lens through which a line of sight of a subject wearing the progressive power lens passes and a reactive accommodation amount that the subject exhibits when the line of sight passes through the line-of-sight passage position, based on visual behavior of the subject; a step (b) of judging whether or not the reactive accommodation amount is within an appropriate range; a step (c) of determining a correction method for correcting the progressive power lens based on a result of judgement made in the step (b); and a step (d) of correcting a design of the progressive power lens based on the correction method determined in the step (c).
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公开(公告)号：US20170115510A1
公开(公告)日：2017-04-27
申请号：US15311358
申请日：2015-06-03
Applicant: HOYA LENS THAILAND LTD.
Inventor： Tadashi KAGA , Toshihide SHINOHARA , Ayumu ITO , Hiroshi ASAMI
IPC: G02C7/06
Abstract: Progressive addition lens includes a near portion having a power for viewing a near field, a distance portion having a power for viewing a distance field further than the near field, and an intermediate portion connecting the distance portion and the near portion. The progressive addition lens includes an aspherical object-side surface and an aspherical eyeball-side surface and is formed in rotational symmetry with respect to a center of design of the progressive addition lens. The object-side surface includes a first stable region formed in rotational symmetry with respect to the center of design and including the center of design, and an aspherical region arranged outside of the first stable region to contact the first stable region and formed in rotational symmetry with respect to the center of design. A Peak to Valley value of a mean surface refractive power in the first stable region is 0.12 D or less.
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公开(公告)号：US20220160224A1
公开(公告)日：2022-05-26
申请号：US17599845
申请日：2020-03-26
Applicant: HOYA LENS THAILAND LTD.
Inventor： Eiichiro YAMAGUCHI , Toshiaki SONEHARA , Ayumu ITO , Nagisa ISHIHARA
Abstract: A measuring method for measuring sensitivity of eye around certain line of sight includes: showing image of predetermined pattern on a display screen showing in front of eyeball of subject by display device secured to head; showing fixation target focused on by subject, on display screen to make line of sight of subject; showing change region where predetermined pattern image is changed, at anisotropic area around intersection point or fixation target in screen is separated from intersection point and fixation target, intersection point wherein subject certain line of sight focuses on fixation target, crosses display screen; showing change region where predetermined image pattern is changed on display screen, wherein change region manner is continuously or intermittently brought close to or away from intersection point or fixation target in display screen; and determining range wherein subject senses change region by bringing it close or away from intersection point or fixation target.
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9.发明申请公开(公告)号：US20200249499A1
公开(公告)日：2020-08-06
申请号：US16641788
申请日：2019-03-26
Applicant: HOYA LENS THAILAND LTD.
Inventor： Ayumu ITO , Toshiaki SONEHARA , Tadashi KAGA
Abstract: A designing method of a pair of spectacle lenses, which includes a right-eye spectacle lens and a left-eye spectacle lens, includes a process of designing the pair of spectacle lenses; a power error (unit: diopter (D)) that compensates for a difference between a response of accommodation of a right eye and a response of accommodation of a left eye of a wearer, wherein a response of accommodation (unit: diopter (D)) of each eye is a difference AC (=applied accommodation ACN−applied accommodation ACF) between an applied accommodation ACF of the eye of the wearer exhibited when the wearer views an object at a distance f and an applied accommodation ACN of the eye of the wearer exhibited when viewing an object at a distance n shorter than the distance f.
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公开(公告)号：US20180149883A1
公开(公告)日：2018-05-31
申请号：US15576266
申请日：2016-05-26
Applicant: Hiroshi ASAMI , Ayumu ITO , HOYA LENS THAILAND LTD.
Inventor： Hiroshi ASAMI , Ayumu ITO
CPC classification number: G02C7/027 , G02C7/025 , G02C7/06 , G02C7/061 , G02C7/065 , G06F17/50 , G06F17/5009 , G06F2217/16 , Y02E60/76 , Y04S40/22
Abstract: A vision simulation, on assumption that spectacles are worn, is performed for a first model designed by setting a target additional power of a desirable value at a position corresponding to a fitting point on a principal meridian. A correction amount is computed for correcting the difference between a simulation value obtained for the additional power at the position corresponding to the fitting point on the principal meridian through the vision simulation and the target additional power. A second model is designed by replacing the additional power with a value obtained by the addition of the calculated correction amount to the target additional power.
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