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公开(公告)号：US20230114677A1
公开(公告)日：2023-04-13
申请号：US17911512
申请日：2021-01-12
Applicant: HOYA LENS THAILAND LTD.
Inventor： Tadashi KAGA
Abstract: A progressive power lens and a technique associated therewith, wherein CF and AxF are achieved in a distance portion and CN and AxN are achieved in a near portion in a state in which: a basic progressive surface on which no astigmatic power is set in the distance portion, the near portion, and an intermediate portion; a curvature distribution of a set α (k1α, k2α) of two principal curvatures having different sizes that is uniformly added to the distance portion, the near portion, and the intermediate portion, and that achieves CF and AxF in the distance portion; and a curvature distribution of a set β (k1β, k2β) of two principal curvatures having different sizes that is different from the curvature distribution of the set α, and in which an absolute value (lk1β-k2βl) of a principal curvature difference increases in a predetermined direction, are combined.
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2.发明申请公开(公告)号：US20220214563A1
公开(公告)日：2022-07-07
申请号：US17610299
申请日：2020-08-21
Applicant: HOYA LENS THAILAND LTD.
Inventor： Shinichiro TAGUCHI , Takao TANAKA , Keima SAKATA , Tadashi KAGA
IPC: G02C7/02
Abstract: A spectacle lens design system capable of suppressing deformation during finishing processing. The system (LDS100) is designed for a spectacle lens, wherein the spectacle lens design system comprises: a prescription data acquisition part 110 to acquire prescription data which includes prescribed power information, and designated lens thickness information relating to finishing processing information regarding finishing processing after shaping of a spectacle lens; an optical surface calculation part 122 to calculate an optical surface shape based on the prescribed power information of the prescription data, thereby generating optical surface shape data; an appropriate lens thickness information generation part 124 to generate appropriate lens thickness information regarding a lens thickness appropriate for performing the finishing processing, based on the finishing processing information of the prescription data; and a thickness calculation and shape adjustment part 127 to adjust lens shape data based on the optical surface shape data and the lens thickness information.
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3.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：US20170351116A1
公开(公告)日：2017-12-07
申请号：US15539862
申请日：2015-12-28
Applicant: HOYA LENS THAILAND LTD.
Inventor： Tadashi KAGA , Ayumu ITO , Kazuma KOZU
CPC classification number: G02C7/063 , G02C7/02 , G02C7/024 , G02C7/027 , G02C7/06 , G02C7/061 , G02C7/065 , G02C7/14
Abstract: A technology concerns a spectacle lens to suppress unnecessary convergence. In the spectacle lens, when an inner horizontal direction of the spectacle lens is a direction toward the nose of a user who wears the spectacle lens, and an outer horizontal direction of the spectacle lens is a direction toward an ear of the user, a shape of a base in prism is formed in a portion in which power continuously changes and through which a main line of sight, influenced by convergence of the user of the spectacle lens, passes such that at least a part of a base out prism, which may be generated in the portion, is cancelled.
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Patent Agency Ranking
公开(公告)号：US20210356764A1
公开(公告)日：2021-11-18
申请号：US17281126
申请日：2019-09-27
Applicant: HOYA LENS THAILAND LTD.
Inventor： Tadashi KAGA
Abstract: A design system of a progressive addition lens including a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion provided between the near portion and the distance portion and having a progressive refraction function, the design system of a progressive addition lens includes an aberration amount setting unit that sets an amount of transmission astigmatism Δβ[D] added to a progressive addition lens in such a way that when a wearer of the progressive addition lens α to which transmission astigmatism of an aberration amount Δα[D] is added is provided with the progressive addition lens β having different parameters, visual performance when the progressive addition lens β is worn approaches visual performance when the progressive addition lens α is worn.
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公开(公告)号：US20210341758A1
公开(公告)日：2021-11-04
申请号：US17280953
申请日：2019-09-27
Applicant: HOYA LENS THAILAND LTD.
Inventor： Hiroshi ASAMI , Yasunori IZAWA , Tadashi KAGA
IPC: G02C7/06
Abstract: A progressive addition lens and the related technology, the progressive addition lens including: a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion between the near portion and the distance portion and having a progressive refraction function, in which the transmission astigmatism is added to the near portion and the intermediate portion of the distance portion, the near portion, and the intermediate portion, and in the near portion and the intermediate portion to which the transmission astigmatism is added, after subtracting the refractive power for astigmatism correction, the progressive addition lens further includes a portion where the amount of vertical refractive power is greater than the amount of horizontal refractive power.
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公开(公告)号：US20220206319A1
公开(公告)日：2022-06-30
申请号：US17609992
申请日：2020-09-01
Applicant: HOYA LENS THAILAND LTD.
Inventor： Tadashi KAGA
Abstract: A method for designing a progressive addition lens and the related technology, the lens including a near portion for viewing a near distance, a distance portion for viewing a farther distance, and an intermediate portion between the near and distance portions and having a progressive refraction function, wherein transmission astigmatism is added to the near and intermediate portions out of the distance portion, the near portion, and the intermediate portion, the method including a mode selection step of determining, according to a prescription power, whether to select an AS-oriented mode wherein the amount of transmission astigmatism to be added is set so the amount of horizontal refractive power is larger than the vertical refractive power, or select a PW-oriented mode in which the amount of transmission astigmatism to be added is set so the amount of vertical refractive power is larger than the horizontal refractive power.
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公开(公告)号：US20210356765A1
公开(公告)日：2021-11-18
申请号：US17280997
申请日：2019-09-27
Applicant: HOYA LENS THAILAND LTD.
Inventor： Hiroshi ASAMI , Yasunori IZAWA , Tadashi KAGA
Abstract: A progressive addition lens and the related technology, the progressive addition lens including a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion between the near portion and the distance portion and having a progressive refraction function, in which the transmission astigmatism is added to the near portion and the intermediate portion of the distance portion, the near portion, and the intermediate portion, and in the near portion and the intermediate portion to which the transmission astigmatism is added, the progressive addition lens further includes a portion where an amount of horizontal refractive power is greater than an amount of vertical refractive power after subtracting the refractive power for astigmatism correction.
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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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