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公开(公告)号：US5488442A
公开(公告)日：1996-01-30
申请号：US154336
申请日：1993-11-18
摘要： A progressive multifocal ophthalmic lens is provided having an aspherical surface comprising a distance vision portion, a near vision portion and an intermediate vision portion, in which the maximum mean sphere gradient value is situated in the intermediate vision portion of the principal meridian of progression of the lens, and the cylinder gradient over the whole aspherical surface of the lens is less than the product obtained by multiplying the power addition value at each point by a constant value coefficient.
摘要翻译： 提供了一种渐进式多焦点眼科镜片，其具有包括距离视觉部分，近视觉部分和中间视觉部分的非球面，其中最大平均球面梯度值位于主要子午线的中间视线部分中 透镜的整个非球面上的圆柱体梯度小于通过将每个点处的功率相加值乘以恒定值系数而获得的乘积。
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公开(公告)号：US6102544A
公开(公告)日：2000-08-15
申请号：US342946
申请日：1999-06-29
摘要： In a multifocal ophthalmic lens comprising an aspherical surface having at every point thereon a mean sphere and a cylinder, a far vision region, a near vision region, and an intermediate vision region, the length of progression i.e. the length over which lens power varies by a set amount in different regions of the lens, is short. To avoid distortion at the periphery of the lens which this would otherwise occasion, the isosphere and isocylinder lines are distributed over the surface of the lens so as to ensure variations in sphere are not too sudden along a 20 mm radius circle centered on the geometric center of the lens and variations in cylinder on the surface of the lens inside this circle are also very small. The lens has an enlarged near vision region and progression is less perceptible to the wearer.
摘要翻译： 在包括非球面的多焦点眼镜片中，每个点上均具有平均球体和圆柱体，远视区域，近视区域和中间视觉区域，其进程长度即透镜功率变化的长度 在镜片的不同区域设定的量很短。 为了避免透镜外围的变形，否则会出现这种情况，同相和圆柱体线分布在透镜的表面上，以确保球体的变化不会沿着以几何中心为中心的20毫米半径圆 的透镜和该圆周内的透镜表面上的气缸的变化也非常小。 透镜具有放大的近视区域，并且进展对于佩戴者而言较不可察觉。
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公开(公告)号：US06682194B2
公开(公告)日：2004-01-27
申请号：US10062608
申请日：2002-01-31
申请人： Francoise Ahsbahs , Pierre Devie
发明人： Francoise Ahsbahs , Pierre Devie
IPC分类号： G02C706
摘要： A progressive multifocal ophthalmic lens having a far vision region, an intermediate vision region and a near vision region, a main meridian of progression passing through said three regions, and a power addition equal to a difference in mean sphere between a near vision region control point and a far vision region control point is provided. The lens has a progression length less than 12 mm, defined as the vertical distance between a mounting center and a point on the meridian where mean sphere is greater than mean sphere at the far vision control point by 85% of the power addition value. To ensure good visual characteristics not only around the meridian, but also in regions of extra-foveal vision, the ratio between the integral of the product of cylinder times the norm of sphere gradient, on a 40 mm diameter circle centered on the center of the lens, and the product of the area of this circle, power addition and a maximum value of the norm of sphere gradient over that part of the meridian comprised within this circle is less than 0.14.
摘要翻译： 一种具有远视区域，中间视野区域和近视区域的渐进多焦点眼科镜片，通过所述三个区域的主要子午线，以及等于近视区域控制点 并提供远视区域控制点。 透镜具有小于12mm的进展长度，定义为安装中心和子午线上的点之间的垂直距离，平均球体在远视觉控制点处的平均球面大于功率附加值的85％。 为了确保良好的视觉特征，不仅在子午线周围，而且在中心凹视野的区域中，圆柱体乘积的积分与球体梯度的标准之间的比率在以中心为中心的40mm直径的圆上 透镜，并且该圆的面积的乘积，功率相加和包括在该圆内的子午线部分的球面梯度范数的最大值小于0.14。
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公开(公告)号：US20060139571A1
公开(公告)日：2006-06-29
申请号：US10543539
申请日：2004-01-30
IPC分类号： G02C7/06
CPC分类号： G02C7/066 , G02C7/06 , G02C7/061 , G02C2202/24
摘要： The lens presents horizontal prismatic refractive power that varies progressively along the main progression meridian (MM′) with the addition of horizontal prismatic power being greater than 2 prismatic diopters in absolute value, this addition of horizontal prismatic power being defined by the difference between the horizontal prismatic refractive power at the reference point (L) of the far vision zone and the horizontal prismatic refractive power at the projection point (P′) of the reference point (P) of the near vision zone (VP) on the vertical line passing through the reference point (L) of the far vision zone.
摘要翻译： 透镜呈现水平棱镜屈光力，其沿着主进行子午线（MM'）逐渐变化，其中添加了大于2的棱镜屈光度的绝对值的水平棱镜功率，水平棱镜功率的增加由水平方向 在远视区的参考点（L）处的棱镜折射力和在通过的垂直线上的近视区（VP）的参考点（P）的投影点（P'）处的水平棱镜屈光力 远视区的参考点（L）。
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公开(公告)号：US06325508B1
公开(公告)日：2001-12-04
申请号：US09471600
申请日：1999-12-23
申请人： Bruno Decreton , Thierry Bonnin , Bjorn Drobe , Isabelle Poulain , Gilles le Saux , Francoise Ahsbahs
发明人： Bruno Decreton , Thierry Bonnin , Bjorn Drobe , Isabelle Poulain , Gilles le Saux , Francoise Ahsbahs
IPC分类号： G02C702
摘要： There is provided a spectacle frame 1, having a least one corrective lens the characteristics of which do not vary over time and having telemetry means 5 which set off an alarm 9, 10 when the distance measured by the telemetry means is less than a predetermined preference distance. This reference distance can for example be set at between 20 and 50 cm depending on the spectacle wearer. A kit is also provided comprising a frame, telemetry means and an alarm. The spectacle frame can be prescribed for slowing down the evolution of acquired myopia in children who are starting to acquire myopia; here, the spectacle frame is provided with progressive multifocal lenses. The telemetry means and alarm incite the child to respect a sufficient working distance for close vision.
摘要翻译： 提供了一种眼镜架1，其具有至少一个校正透镜，其特征不随时间变化，并且具有遥测装置5，当遥测装置测量的距离小于预定偏好时，遥测装置5发出警报9,10 距离。 该参考距离例如可以设定在20cm至50cm之间，这取决于眼镜佩戴者。 还提供了一个套件，包括一个框架，遥测装置和一个报警器。 可以规定眼镜框架，以减缓开始获得近视的儿童获得性近视的发展; 这里，眼镜架设有渐进多焦点镜片。 遥测手段和报警器煽动孩子尊重足够的工作距离以实现远见。
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公开(公告)号：US06220705B1
公开(公告)日：2001-04-24
申请号：US09487973
申请日：2000-01-20
IPC分类号： G02C706
摘要： In a progressive multifocal ophthalmic lens having an aspherical surface comprising a far vision region (VL), a near vision region (VP), an intermediate vision region, a main meridian of progression passing through these three regions, and a mounting center (CM), the far vision region includes an angular sector with its apex at the mounting center and a central angle of 110°, within which values of sphere and cylinder are less than or equal to 0.50 diopters, and a region of the lens above the near vision reference point and extending substantially up to the middle of the intermediate vision region has a maximum variation in values of cylinder 20 mm to both sides of the meridian limited to less than or equal to 0.30 diopters, and to less than or equal to 10% of the power addition of the lens. The lenses obtained, generally of power addition greater than or equal to 2.50, have wider near and intermediate vision regions, as well as a distribution of sphere and cylinder which is as homogeneous as possible over the complete surface of the lens.
摘要翻译： 在具有包括远视区域（VL），近视区域（VP），中间视觉区域，通过这三个区域的进展主子午线的非球面的渐进多焦点眼科镜片和安装中心（CM） ，远视区域包括其顶点在安装中心处的中心角度为110°的角扇区，其中球体和圆柱体的值小于或等于0.50屈光度，并且在近视点之上的透镜区域 参考点并且基本上延伸到中间视觉区域的中部具有限定为小于或等于0.30屈光度的子午线的两侧的圆柱体20mm的值的最大变化，并且小于或等于0.30屈光度的小于或等于10％ 透镜的功率增加。 所获得的透镜通常具有大于或等于2.50的功率添加，具有更宽的近视和中视区，以及在透镜的整个表面上尽可能均匀的球体和圆柱体的分布。
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公开(公告)号：US06595638B2
公开(公告)日：2003-07-22
申请号：US10066477
申请日：2002-01-31
申请人： Francoise Ahsbahs , Pierre Devie
发明人： Francoise Ahsbahs , Pierre Devie
IPC分类号： G02C706
摘要： A progressive multifocal ophthalmic lens having a far vision region, an intermediate vision region and a near vision region, a main meridian of progression passing through said three regions, and a power addition equal to a difference in mean sphere between a near vision region control point and a far vision region control point is provided. The lens has a progression length less than 12 mm, defined as the vertical distance between a mounting center and a point on the meridian where mean sphere is greater than mean sphere at the far vision control point by 85% of the power addition value. To ensure excellent optical performance of the lens despite this short length of progression, the ratio between the product of cylinder times the norm of sphere gradient, and the square of power addition is less than 0.08 mm−1 at every point within a 40 mm diameter disc centered on the center of the lens. Additionally, cylinder within that part of the disc situated above the mounting center is less than 0.5 times power addition.
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公开(公告)号：US06595637B2
公开(公告)日：2003-07-22
申请号：US10030362
申请日：2002-05-09
申请人： Francoise Ahsbahs , Gilles Le Saux
发明人： Francoise Ahsbahs , Gilles Le Saux
IPC分类号： G02C706
摘要： The invention relates to a multifocal ophthalmic lens, comprising an aspherical surface with a mean sphere and a cylinder at every point thereof, characterized by the equation: L
摘要翻译： 本发明涉及一种多焦点眼科镜片，其特征在于以下方程式：其中L等于比值（Smax-Smin）/ gradSmax，差异比值 在以透镜几何中心为中心的40mm直径圆的区域中的平均球体的最大值和最小值之间，该区域受到在颞侧的该中心1mm处的垂直直线和4mm 另一方面，从鼻侧的这个中心，一方面是平均球的梯度的最大值，另一方面，其中R等于比率Cmax /（Smax-Smin）， 所述圆周内的最大圆柱值与所述区域中的平均球体的最大值与最小值之间的差值的比值。本发明提供了具有小进展长度的渐进透镜和在透镜上高的近视区域。 适用于小尺寸的框架，延长使用时不太累。
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公开(公告)号：US07216977B2
公开(公告)日：2007-05-15
申请号：US10543539
申请日：2004-01-30
IPC分类号： G02C7/06
CPC分类号： G02C7/066 , G02C7/06 , G02C7/061 , G02C2202/24
摘要： The lens presents horizontal prismatic refractive power that varies progressively along the main progression meridian (MM′) with the addition of horizontal prismatic power being greater than 2 prismatic diopters in absolute value, this addition of horizontal prismatic power being defined by the difference between the horizontal prismatic refractive power at the reference point (L) of the far vision zone and the horizontal prismatic refractive power at the projection point (P′) of the reference point (P) of the near vision zone (VP) on the vertical line passing through the reference point (L) of the far vision zone.
摘要翻译： 透镜呈现水平棱镜屈光力，其沿着主进行子午线（MM'）逐渐变化，其中添加了大于2的棱镜屈光度的绝对值的水平棱镜功率，水平棱镜功率的增加由水平方向 在远视区的参考点（L）处的棱镜折射力和在通过的垂直线上的近视区（VP）的参考点（P）的投影点（P'）处的水平棱镜屈光力 远视区的参考点（L）。
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公开(公告)号：US5719658A
公开(公告)日：1998-02-17
申请号：US502663
申请日：1995-07-14
摘要： In a progressive multifocal ophthalmic lens providing excellent performance in the far vision region, good width of the near vision region and gentle progression in the intermediate vision region therebetween, the far vision region comprises an angular sector defined by two half-lines that intersect at the geometrical center of the lens forming an upwardly-directed angular segment with an included angle of preferably more than 145.degree. in which all points have a cylinder less than A/2 diopters, and constraints are applied governing the gentleness of progression in the intermediate vision region and the relative width of the near vision region.
摘要翻译： 在远视区域提供优异性能的渐进多焦点眼科镜片中，近视区域的良好宽度和其间的中间视觉区域中的平缓进展，远视区域包括由两条半线相交的角度区域 透镜的几何中心形成向上指向的角部分，其夹角优选大于145°，其中所有点具有小于A / 2屈光度的圆柱，并且限制适用于中间视觉区域中的进展温和 以及近视区域的相对宽度。
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