PRESCRIPTION-DEPENDENT AND INDIVIDUALIZATION-DEPENDENT MODIFICATION OF THE TEMPORAL PERIPHERAL NOMINAL ASTIGMATISM AND ADAPTION OF THE OBJECT DISTANCE FUNCTION TO CHANGED OBJECT DISTANCES FOR NEAR AND/OR FAR VISION

    公开(公告)号:US20140049747A1

    公开(公告)日:2014-02-20

    申请号:US13880922

    申请日:2011-10-13

    IPC分类号: G02C7/02

    摘要: Method for optimization of a progressive spectacle lens, which method comprises: defining a starting nominal astigmatism distribution for the spectacle lens; determining a transformed nominal astigmatism distribution and optimizing the spectacle lens on the basis of the transformed nominal astigmatism distribution, wherein the determination of a transformed nominal astigmatism distribution comprises multiplication of the maximum temporal nominal astigmatism of the starting nominal astigmatism distribution by a factor k as a result of which a modified maximum temporal astigmatism is obtained, wherein k is a function of a prescription value, and/or at least of one parameter of the spectacle lens or of the arrangement thereof in front of the eyes, and transformation of the starting nominal astigmatism distribution on the basis of the modified maximum temporal astigmatism. Method for optimization of a progressive spectacle lens, which method comprises: defining a starting object distance function; determining object distance data, wherein these comprise an object distance at a predetermined point on the main line of sight; modifying the starting object distance function in accordance with the object distance data; optimizing the spectacle lens, wherein the transformed object distance function is taken into account, wherein the modification of the starting object distance function comprises superposition with a correction function, which has a variable parameter that is determined, in accordance with the object distance data, in such a way that the value of the modified starting object distance function at the predetermined point is equal to the reciprocal value of the determined nominal object distance for this point, wherein the object distance function is defined as the reciprocal object distance along the main line of sight.

    AUTOMATIC MODIFICATION OF A PROGRESSIVE LENS DESIGN
    12.
    发明申请
    AUTOMATIC MODIFICATION OF A PROGRESSIVE LENS DESIGN 有权
    渐进式镜头设计的自动修改

    公开(公告)号:US20120016645A1

    公开(公告)日:2012-01-19

    申请号:US13145495

    申请日:2009-12-09

    IPC分类号: G06F17/50 G02C7/02 G06F17/10

    CPC分类号: G02C7/063 G02C7/025 G02C7/028

    摘要: A method and apparatus for creating a progressive spectacle lens design by transforming a starting design. The starting design is defined to include specifications for the course of a principal line and specification of at least one base target isoastigmatism line with a constant base target astigmatism, in which the base target isoastigmatism line passes through a first predetermined control point {right arrow over (r)}1=(u1,y1). The method and apparatus transform the starting design by shifting the first control point {right arrow over (r)}1=(u1,y1) along a predetermined or predeterminable curve, taking into account the design and/or the spectacle lens wearer-specific data; modifying the course of the base target isoastigmatism line such that it passes through the shifted first control point {right arrow over (r)}′1(u′1,y′1); and calculating a target astigmatism distribution A(u,y), which exhibits the modified base target isoastigmatism line. Furthermore, the method and apparatus are provided to create the spectacle lens on the basis of the progressive spectacle lens design.

    摘要翻译: 一种用于通过转换起始设计来创建渐进式眼镜镜片设计的方法和装置。 起始设计被定义为包括主线路的规格和具有恒定的基本目标像散的至少一个基本目标异质性线的规格,其中基准目标异质性线通过第一预定控制点(右箭头 (r)} 1 =(u1,y1)。 该方法和装置通过沿着预定或可预定的曲线移动第一控制点(右箭头,(r)} 1 =(u1,y1)来转换起始设计,考虑到设计和/或眼镜镜佩戴者特定 数据; 修改基准目标异质性线的过程,使得其通过移位的第一控制点(右箭头((r)} 1(u'1,y'1)); 并计算目标像散分布A(u,y),其表现出修改的基准目标异质性线。 此外,提供了该方法和装置,以基于渐进式眼镜镜片设计来创建眼镜镜片。

    Double progressive spectacle lens
    13.
    发明授权
    Double progressive spectacle lens 有权
    双渐进眼镜镜片

    公开(公告)号:US07300153B2

    公开(公告)日:2007-11-27

    申请号:US10542701

    申请日:2003-12-19

    IPC分类号: G02C7/06 G02C7/02

    CPC分类号: G02C7/065 G02C7/061 G02C7/068

    摘要: A double progressive spectacle lens in which a first prescribed progressive surface can be freely designed. The second progressive surface is then optimized in relation to the first prescribed surface. Thereby, the resulting spectacle lens avoids the need to employ a classic hourglass design progression zone and produces optical and geometric advantages such as an overall height of the progressive lens.

    摘要翻译: 一种双渐进眼镜镜片,其中第一规定渐进面可以自由地设计。 然后相对于第一规定表面优化第二渐进表面。 因此,所得到的眼镜镜片避免了使用经典的沙漏设计进展区域并产生光学和几何优点,例如渐进镜片的整体高度。

    Method for calculating an individual progressive lens
    14.
    发明申请
    Method for calculating an individual progressive lens 有权
    用于计算单个渐进镜片的方法

    公开(公告)号:US20070132945A1

    公开(公告)日:2007-06-14

    申请号:US10551127

    申请日:2003-12-19

    IPC分类号: G02C7/02

    CPC分类号: G02C7/061 G02C7/024 G02C7/028

    摘要: A method of calculating an individual progressive lens creates one or more basic designs for lenses based on theoretical specifications, and then creates starting designs from these basic designs. Individual progressive lenses are calculated from the starting designs corresponding to the individual data from wearing test subjects. Valid starting designs are then created fr production. The individual lenses are calculated from the starting designs according to individual customer data.

    摘要翻译: 计算单个渐进透镜的方法基于理论规范创建一个或多个用于透镜的基本设计,然后从这些基本设计创建起始设计。 从与穿着测试对象的个人数据相对应的开始设计计算个体渐进镜片。 然后创建有效的启动设计。 单个镜头根据个人客户数据从起始设计中计算。

    Method for representing and optimizing a double-progressive spectacle lens
    18.
    发明授权
    Method for representing and optimizing a double-progressive spectacle lens 有权
    用于表示和优化双渐进眼镜镜片的方法

    公开(公告)号:US07021763B2

    公开(公告)日:2006-04-04

    申请号:US10470968

    申请日:2002-02-04

    IPC分类号: G02C7/02

    CPC分类号: G02C7/068 G02C7/027 G02C7/061

    摘要: A method for representing and optimizing a double-progressive spectacle lens is characterized by the following steps: selecting a suitable coordinate system K2 for the representation of a back surface; selecting a suitable grid G for the representation of a spline of the back surface of a starting lens to be optimized in a coordinate system K2; assigning sagittal height data of the back surface to a spline (back surface spline); defining a position of a center of rotation of an eye; computing principal rays from the center of rotation of the eye through the starting lens at grid points of G; computing a length of a distance between points of penetration of a thus computed principal ray through a front surface and the back surface (oblique thickness); assigning data of the oblique thickness (thickness spline) to a spline; selecting a set of assessment positions at which an optical quality is computed for a target function; suitably selecting particular optical and geometrical stipulations which ideally should be satisfied at the assessment positions; defining the target function as a deviation of the quality of an actual spectacle lens from ideal values; starting the optimization; evaluating at each one of optimization steps the optical properties in a wearing position at the assessment points by means of surface properties to be computed and actual principal ray data; ending the optimization when the target function is below a particular value, or after a specifiable maximum number of optimization steps.

    摘要翻译: 用于表示和优化双渐进式眼镜镜片的方法的特征在于以下步骤:为后表面的表示选择合适的坐标系K2; 选择合适的网格G用于在坐标系K2中优化的起始透镜的后表面的样条的表示; 将背面的矢状高度数据分配给花键(后表面花键); 限定眼睛的旋转中心的位置; 在G的格点处计算来自眼睛旋转中心的主光线通过起始镜头; 计算通过前表面和后表面的如此计算的主光线的穿透点之间的距离的长度(倾斜厚度); 将倾斜厚度(厚度样条)的数据分配给花键; 选择一组评估位置,在该位置处计算目标函数的光学质量; 适当地选择在评估位置理想地满足的特定光学和几何规定; 将目标函数定义为实际眼镜片的质量与理想值的偏差; 开始优化; 在每个优化步骤中通过要计算的表面性质和实际主光线数据在评估点处的佩戴位置的光学性质进行评估; 当目标函数低于特定值时,或在可指定的最大数量的优化步骤之后结束优化。

    Method for calculating a spectacle lens with improved near zone
    19.
    发明授权
    Method for calculating a spectacle lens with improved near zone 有权
    用于计算具有改善的近区域的眼镜镜的方法

    公开(公告)号:US08992014B2

    公开(公告)日:2015-03-31

    申请号:US13990202

    申请日:2011-09-06

    IPC分类号: G02C7/02 G02C7/06

    摘要: Optimization and production of a spectacle lens for a specific wearing situation for correcting at least one astigmatic refraction of an eye of a spectacles wearer, which in a reference viewing direction of the eye has a cylinder reference value and a cylinder reference axis, comprising: specifying an object distance for at least one evaluation point of the spectacle lens; determining a transformed astigmatic refraction for the at least one evaluation point of the spectacle lens from the cylinder reference value and the cylinder reference axis depending on the specified object distance; and optimizing the spectacle lens such that for the at least one evaluation point a correction of the transformed astigmatic refraction by the spectacle lens in the specific wearing situation is taken into consideration, wherein determining the transformed astigmatic refraction comprises determining a transformed cylinder value and/or a transformed cylinder axis depending on the specified object distance.

    摘要翻译: 针对特定佩戴情况的眼镜镜片的优化和制造,用于校正在眼睛的参考观察方向上具有圆柱体参考值和圆柱体参考轴的眼镜佩戴者的眼睛的至少一个散光折射,包括:指定 用于眼镜镜片的至少一个评估点的物体距离; 根据指定的对象距离,从圆柱体参考值和圆柱体参考轴确定眼镜片的至少一个评估点的变换的散光折射; 并且优化所述眼镜镜片,使得对于所述至少一个评估点,考虑在所述特定佩戴情况下由所述眼镜镜片改变的散光折射的校正,其中确定所述经变换的像散折射包括确定经变换的圆柱体值和/或 根据指定的物体距离变化的圆柱轴。

    Method for calculating a spectacle lens using viewing angle-dependent prescription data
    20.
    发明授权
    Method for calculating a spectacle lens using viewing angle-dependent prescription data 有权
    使用视角依赖处方数据计算眼镜镜片的方法

    公开(公告)号:US08915589B2

    公开(公告)日:2014-12-23

    申请号:US13639602

    申请日:2011-04-21

    IPC分类号: G06F19/00 G02C7/06 G02C7/02

    摘要: Optimizing a spectacle lens by: obtaining prescription or refraction data VA11 and VA12 of a wearer for at least two different object distances A11 and A12 (A11≠A12), comprising data relating to a spherical power Sphv, a magnitude of an astigmatism CylV, and an astigmatism axis AxisV; specifying an object distance model A1(x, y), wherein A1 designates the object distance and (x, y) designates a visual spot or visual point of the spectacle lens in a predetermined direction of sight; specifying a function PRef=ƒ(A1), which describes the dependence of a power vector P Ref = ( M Ref J 0 Ref J 45 Ref ) = ( Sph V + Cyl V 2 - Cyl V 2 ⁢ cos ⁢ ⁢ 2 ⁢ ⁢ Axis V J 45 Ref = - Cyl V 2 ⁢ sin ⁢ ⁢ 2 ⁢ ⁢ Axis V ) of the prescription on the object distance A1, determining the components of the power vector PRef of the prescription in a plurality of visual points (x, y) on the basis of the object distance model A1(x, y) and the obtained prescription data VA11 and VA12; and calculating at least one surface of the spectacle lens taking the determined components of the power vector PRef of the prescription in the visual points (x, y) into account.

    摘要翻译: 通过以下方式优化眼镜镜片:针对至少两个不同的对象距离A11和A12(A11≠A12)获得佩戴者的处方或折射数据VA11和VA12,包括与球面光焦度Sphv有关的数据,像散度CylV的大小和 散光轴AxisV; 指定对象距离模型A1(x,y),其中A1表示对象距离,(x,y)表示眼镜在预定方向上的视点或视点; 指定函数PRef =ƒ(A1),其描述功率矢量的依赖性P Ref =(M Ref J 0 Ref J 45 Ref)=(Sph V + Cyl V 2 -Cyl V 2 cos 确定物体距离A1处的处方的轴VJ 45 Ref = -Cyl V 2sinθ2轴轴V),确定多个视点(x,y)中的处方的功率矢量PRef的分量, 基于对象距离模型A1(x,y)和获得的处方数据VA11和VA12; 并且考虑视觉点(x,y)中的处方的功率矢量PRef的确定分量来计算眼镜片的至少一个表面。