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公开(公告)号：US12124114B2
公开(公告)日：2024-10-22
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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Patent Agency Ranking
公开(公告)号：US12140821B2
公开(公告)日：2024-11-12
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：US12078873B2
公开(公告)日：2024-09-03
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：US12099260B2
公开(公告)日：2024-09-24
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
CPC classification number: G02C7/063
Abstract: A progressive addition lens includes: 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. A transmission astigmatism is added to at least 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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5.发明授权公开(公告)号：US11428954B2
公开(公告)日：2022-08-30
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：US10401650B2
公开(公告)日：2019-09-03
申请号：US15539862
申请日：2015-12-28
Applicant: HOYA LENS THAILAND LTD.
Inventor： Tadashi Kaga , Ayumu Ito , Kazuma Kozu
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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