Ophthalmic lens having an astigmatic effect
    1.
    发明授权
    Ophthalmic lens having an astigmatic effect 失效
    具有散光效果的眼科镜片

    公开(公告)号:US5920372A

    公开(公告)日:1999-07-06

    申请号:US821344

    申请日:1997-03-20

    IPC分类号: G02C7/02 G02C7/06

    CPC分类号: G02C7/068 G02C7/061

    摘要: An ophthalmic lens in which one surface is provided with at least one region, in which the refracting power is practically constant except for aspherical corrections, and at least one transition region which is adjacent to the region having practically constant surface refracting power, and in which the surface refracting power increases or decreases continuously, and the other surface is provided with an astigmatic effect. The orientation of the surface having an astigmatic effect relative to the surface having continuous refracting power change is dependent on the position of the axis of the astigmatism of the eye. The surface having an astigmatic effect deviates from the toric shape and is independent of the orientation of the surface relative to the surface having continuous refracting power change which is a surface optimized for the axial position of 0.degree..

    摘要翻译: 一种眼镜片,其中一个表面设置有除了非球面校正之外折射力实际上恒定的至少一个区域以及与实际上具有恒定的表面折射能力的区域相邻的至少一个过渡区域,其中 表面折射力连续增大或减小,另一面具有散光效果。 具有相对于具有连续屈光力变化的表面的散光效果的表面的取向取决于眼睛散光轴的位置。 具有散光效应的表面偏离复曲面形状,并且独立于表面相对于具有连续折射力变化的表面的取向,该折射功率变化是针对0°的轴向位置优化的表面。

    Series for progressive spectacle lenses
    2.
    发明授权
    Series for progressive spectacle lenses 失效
    渐进眼镜镜片系列

    公开(公告)号:US5880810A

    公开(公告)日:1999-03-09

    申请号:US663111

    申请日:1996-06-28

    IPC分类号: G02C7/06 G02C7/02

    摘要: A series of progressive ophthalmic lenses, each having a varying surface power in a distance part and/or a varying increase in surface power from a distance part to a near part, includes a front surface having a continuously varying surface power and an eye-facing surface, principal sections of which have varying powers and at least one of which deviates from a circular form. The lenses have astigmatic power and are distinguished by a deviation (dz) between an apex circle and a sagitta of each principal section, as given by the equation:dz=a.sub.j *r.sup.2 +b.sub.j *r.sup.4with coefficients.vertline.a.sub.j .vertline..ltoreq.2*10.sup.-4 mm.sup.-1.vertline.b.sub.j .vertline..ltoreq.1*10.sup.-6 mm.sup.-3and where coefficients a.sub.j2 and b.sub.j2 are yielded by the following functionals:a.sub.j =f.sub.j1 (sph,zyl)=a.sub.j1 (sph)+b.sub.j1 (sph)*zylb.sub.j =f.sub.j2 (sph,zyl)=a.sub.j2 (sph)+b.sub.j2 (sph)*zylwith coefficients a.sub.j2 and b.sub.j2 being a function of a second order.

    摘要翻译: PCT No.PCT / DE95 / 01499 Sec。 371日期:1996年6月28日 102(e)日期1996年6月28日PCT提交1995年10月28日PCT公布。 出版物WO96 / 日期:1996年5月9日一系列渐进式眼科镜片,其每一个在距离部分具有变化的表面光焦度和/或从距离部分到近部分的表面光焦度变化的增加包括具有不断变化的表面光焦度的前表面, 面向眼睛的表面,其主要部分具有变化的能量,并且其中至少一个偏离圆形。 这些透镜具有散光能力,并且由以下等式给出的每个主要部分的顶点圆和弧形之间的偏差(dz)区分:dz = aj * r2 + bj * r4系数| aj |

    Ophthalmic lens having a changing refractive index
    3.
    发明授权
    Ophthalmic lens having a changing refractive index 失效
    具有改变折射指数的眼镜

    公开(公告)号:US5148205A

    公开(公告)日:1992-09-15

    申请号:US490700

    申请日:1990-02-22

    IPC分类号: G02C7/06 G02C7/02

    CPC分类号: G02C7/02 G02C7/06 G02C2202/12

    摘要: An ophthalmic lens having a front and an eye-facing boundary surface and a varying refractive index, which contributes to the correction of aberrations. The ophthalmic lens is distinguished by having at least one system of surfaces at given level (n(x,y,z)=const.) with a constant refractive index, which are spaced the same distance at all points in the direction of their surface normals (parallel surfaces), and which, respectively their extension, intersect the axis connecting the lens apexes of the front surface and the eye-facing surface.

    摘要翻译: PCT No.PCT / DE89 / 00410 Sec。 371日期1990年2月22日 102(e)日期1990年2月22日PCT提交1989年6月22日PCT公布。 第WO89 / 12841号公报 日期:1989年12月28日。一种眼镜片具有正面和面向眼界的边界表面和变化的折射率,有助于矫正像差。 通过具有至少一个具有恒定折射率的表面的系统(n(x,y,z)=常数))来区分眼科镜片,该系统在其表面方向上的所有点处具有相同的距离 法线(平行表面),并且它们的延伸分别与连接前表面和眼睛表面的透镜顶点的轴相交。

    Monofocal ophthalmic lens having two aspherical surfaces
    4.
    发明授权
    Monofocal ophthalmic lens having two aspherical surfaces 失效
    单焦点眼科镜片具有两个非球面

    公开(公告)号:US06231182B1

    公开(公告)日:2001-05-15

    申请号:US09469618

    申请日:1999-12-22

    IPC分类号: G02C702

    CPC分类号: G02C7/02

    摘要: A monofocal ophthalmic lens having a front and a rear surface, each of which is aspherical, of which at least one surface has identical radii of principle curvature in the apex. The average surface refracting power of at least one of the front and rear surfaces is defined by the formula: Bf=(n−1)/2*(1/R1+1/R2) wherein n: is the refractive index of the lens medium, R1: is the radius of principle curvature 2 in a point of at least one of the front and rear surfaces in a first principle plane, and R2: is the radius of principle curvature 2 in the point of the at least one in the front and rear surfaces in a second principle plane, and wherein the average surface refracting power of points on the at least one of the front and rear surfaces is the function of the distance h at constant azimuthal angle of &OHgr; of each point from the apex, and the function includes an extreme value and/or a value 0.

    摘要翻译: 具有前表面和后表面的单焦点眼科镜片,每一个都是非球面的,其中至少一个表面在顶点具有相同的原理曲率半径。 前表面和后表面中的至少一个的平均表面折射力由下式定义:其中n:是透镜介质的折射率,R1是主曲率2的半径,至少在 在第一主平面中的前表面和后表面,R2是在第二主平面中的前表面和后表面中的至少一个点中的主曲率2的半径,并且其中在点处的平均表面折射力 前表面和后表面中的至少一个是来自顶点的每个点的OMEGA的恒定方位角的距离h的函数,并且该函数包括极值和/或值0。

    Progressive ophthalmic lens
    6.
    发明授权
    Progressive ophthalmic lens 失效
    渐进式眼科镜片

    公开(公告)号:US5042936A

    公开(公告)日:1991-08-27

    申请号:US391580

    申请日:1989-07-14

    IPC分类号: G02C7/06 G02C7/02

    CPC分类号: G02C7/065 G02C2202/12

    摘要: A progressive ophthalmic lens comprising a distance portion, the refractive power of which being designed for distance vision, a reading portion, the refractive power of which being designed for near vision, and an intermediate portion, in which the refractive power along the main line of vision at least partially increases continuously from the refractive power of the distance portion to the reading portion. A refractive index of the lens material varies along the main line of vision at least in the intermediate portion so as to at least partially contribute to the increase in refractive power and correction of aberrations.

    摘要翻译: PCT No.PCT / DE88 / 00730 Sec。 371日期:1989年7月14日 102(e)日期1989年7月14日PCT提交1988年11月25日PCT公布。 出版物WO89 / 04986 日期:1989年6月1日。一种渐进式眼科镜片,其包括距离部分,其屈光力被设计用于远视力,读取部分,其屈光度被设计用于近视力,以及中间部分,其中 沿着主视线的折射力至少部分地从距离部分的屈光力到读取部分增加。 透镜材料的折射率至少在中间部分沿主视线变化,以便至少部分地有助于屈光力的增加和像差校正。

    Multifocal lens
    7.
    发明授权
    Multifocal lens 失效
    多焦点镜头

    公开(公告)号:US4955712A

    公开(公告)日:1990-09-11

    申请号:US380781

    申请日:1989-07-18

    IPC分类号: G02C7/06 G02C7/02

    CPC分类号: G02C7/063 G02C7/061 G02C7/068

    摘要: A multifocal lens is described with a main lens designed for distance vision and a segment designed for near vision.The lens in accordance with the present invention is characterized by the fact that one surface of the segment consists of the progression area and the reading portion of a progressive surface.In an advantageous further development the progressive surface whose progression area and reading portion form one surface of the segment is designed in such a way that its surface astigmatism is concentrated essentially in the distance portion.

    摘要翻译: 多焦点透镜被描述为具有用于远距离视觉的主透镜和用于近视的部分。 根据本发明的透镜的特征在于,该段的一个表面由逐行表面的前进区域和读取部分组成。 在有利的进一步发展中,其进程区域和读取部分形成该段的一个表面的渐进表面被设计成使得其表面散光基本上集中在距离部分中。

    Progressive power ophthalmic lens
    8.
    发明授权
    Progressive power ophthalmic lens 失效
    渐进式眼科镜片

    公开(公告)号:US4315673A

    公开(公告)日:1982-02-16

    申请号:US147267

    申请日:1980-05-05

    IPC分类号: G02B3/10 G02C7/02 G02C7/06

    摘要: In the disclosed lens, one lens surface is divided into an upper distance-vision portion FT, a lower near-vision portion NT, and a varying or transitional region PB between the two other portions. In the upper distance-vision portion, the surface contains a far reference point B.sub.F and exhibits predetermined average distance-vision surface refractive powers D.sub.F. The lower near-vision portion contains a near-vision reference point B.sub.N and has predetermined average near-vision surface refractive powers D.sub.N. The transitional region exhibits average surface refractive powers D.sub.P which effect a smooth transition from the distance-vision portion to the near-vision portion. The surface is divided into a temporal portion and a nasal portion by a principal meridian M which forms an umbilical line.

    摘要翻译: 在所公开的透镜中,一个透镜表面被分成两个其它部分之间的上视距部分FT,下近视部分NT和变化或过渡区域PB。 在上部距离视觉部分中,表面包含远的参考点BF并且表现出预定的平均距离视力表面屈光度DF。 较低近视部分包含近视参考点BN并且具有预定的平均近视表面折光力DN。 过渡区域表现出平均的表面折射能力DP,其实现从距离视觉部分到近视觉部分的平滑过渡。 该表面由形成脐带线的主子午线M分成颞部和鼻部。

    Uniform strength ophthalmic lens having a gradient refractive index
changing rotation-symmetrically about the optical axis and method of
making it
    9.
    发明授权
    Uniform strength ophthalmic lens having a gradient refractive index changing rotation-symmetrically about the optical axis and method of making it 失效
    具有相对于光轴旋转对称地变化的梯度折射率的均匀强度的眼科镜片及其制造方法

    公开(公告)号:US4856889A

    公开(公告)日:1989-08-15

    申请号:US51700

    申请日:1987-05-20

    IPC分类号: G02C7/06 G02C7/02

    CPC分类号: G02C7/02 G02C2202/12

    摘要: A uniform strength ophthalmic lens having a gradient refractive index changing rotational-symmetrically about the optical axis in which the curvature course of at least one of the two surfaces of the ophthalmic lens is selected without consideration of correction of aberration so that the critical thickness of the ophthalmic lens does not exceed a specific value and that the gradient refractive index is change rotational-symmetrically about the optical axis so as to correct the aberration. In this manner, a significant reduction of the critical thickness of the opthalmic lens, i.e., the center thickness is a positive lens and peripheral thickness in a negative lens, is achieved while providing an ophthalmic lens having good image-forming properties.

    摘要翻译: 一种具有梯度折射率的均匀强度眼科镜片,其具有围绕光轴旋转对称地改变,其中选择了眼镜片的两个表面中的至少一个表面的曲率行程,而不考虑像差校正,使得临界厚度 眼科镜片不超过特定值,并且梯度折射率围绕光轴旋转对称地改变以校正像差。 以这种方式,在提供具有良好成像性能的眼科镜片的同时,实现了眼镜片的临界厚度(即中心厚度)的显着降低是正透镜并且负透镜中的外围厚度。

    Progressive power ophthalmic lens
    10.
    发明授权
    Progressive power ophthalmic lens 失效
    渐进式眼科镜片

    公开(公告)号:US4946270A

    公开(公告)日:1990-08-07

    申请号:US301751

    申请日:1989-01-11

    IPC分类号: G02C7/06 G02C7/02

    CPC分类号: G02C7/065 G02C7/024 G02C7/061

    摘要: A progressive power ophthalmic lens having at least one surface contributing to an increase in power from a distant portion via a progressive zone to a reading portion, radii of curvature of horizontal section curves of the at least one surface contributing to an increase in power and having horizontal planes as a function of the distance from the main meridian decrease in a front surface in the region of the main meridian in the distant portion and increase in the rear surface in the distant portion and decrease in the reading portion, and the course of change of the curvature .DELTA.rh-rh(x,y)-rh (0,y) reverses with increasing distance x from the main meridian.

    摘要翻译: PCT No.PCT / DE88 / 00286 Sec。 371日期:1989年1月11日 102(e)日期1989年1月11日PCT提交1988年5月14日PCT公布。 公开号WO88 / 08994 日期:1988年11月17日。一种渐进式眼科镜片,具有至少一个表面,其有助于从远处部分经由渐进区域到读取部分的功率增加,所述至少一个表面的水平截面曲线的曲率半径贡献 功率增加,并且具有水平面与远离主子午线区域的前表面的主子午线距离的距离的函数以及远处的后表面的增加以及读数的减小 部分,曲率变化的过程DELTA rh-rh(x,y)-rh(0,y)随着从主子午线的距离x的增加而反转。