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    • 3. 发明授权
    • Eyeglass lens
    • 眼镜镜片
    • US5767939A
    • 1998-06-16
    • US521687
    • 1995-12-22
    • Akira KomatsuToshiharu KatadaOsamu Yokoyama
    • Akira KomatsuToshiharu KatadaOsamu Yokoyama
    • G02C7/02
    • G02C7/02
    • An eyeglass lens of the present invention has a surface which is a refracting surface arranged such that two coordinate axes X and Y are set to contact with the refracting surface at a determined point thereon while directions of the coordinate axes and an XY plane including the two axes are determined, that a perpendicular line is dropped toward the XY plane from an arbitrary point on the refracting surface, and then X, Y coordinates of an intersecting point between the perpendicular line and the XY plane are denoted by x and y, respectively, and the length of the perpendicular line by z, and that a value of z is expressed as follows: ##EQU1## where r.sup.2 =x.sup.2 +y.sup.2 ; C.sub.x, C.sub.y, K.sub.x, K.sub.y, A.sub.n,m,j are constants to define the shape of lens; n, m, j are integers satisfying conditions of 2.ltoreq.n, 0.ltoreq.m, 0.ltoreq.j, and l.ltoreq.m+j; coefficients satisfy the following conditions: ##EQU2## which cannot be simultaneously zero.
    • 本发明的眼镜镜片具有表面,该表面是将两个坐标轴X和Y设定为与折射面接触的折射面,该折射面在确定的位置上,同时坐标轴的方向和包括两个坐标轴的XY平面 确定垂直线从折射表面上的任意点向XY平面落下,然后分别用x和y表示垂直线和XY平面之间的交点的X,Y坐标, 和垂直线的长度为z,z的值表示如下:其中r2 = x2 + y2; Cx,Cy,Kx,Ky,An,m,j是定义透镜形状的常数; n,m,j是满足2≤n,0≤m,0≤j和l≤m+ j的条件的整数; 系数满足以下条件:| An,m,j | (3)(4)不能同时为零。
    • 4. 发明授权
    • Eyeglass lens
    • 眼镜镜片
    • US5479220A
    • 1995-12-26
    • US70302
    • 1993-06-03
    • Akira KomatsuToshiharu KatadaOsamu Yokoyama
    • Akira KomatsuToshiharu KatadaOsamu Yokoyama
    • G02C7/02
    • G02C7/02
    • An eyeglass lens of the present invention has a surface which is a refracting surface arranged such that two coordinate axes X and Y are set to contact with the refracting surface at a determined point thereon while directions of the coordinate axes and an XY plane including the two axes are determined, that a perpendicular line is dropped toward the XY plane from an arbitrary point on the refracting surface, and then X, Y coordinates of an intersecting point between the perpendicular line and the XY plane are denoted by x and y, respectively, and the length of the perpendicular line by z, and that a value of z is expressed as follows: ##EQU1## where r.sup.2 =x.sup.2 +y.sup.2 ; C.sub.x, C.sub.y, K.sub.x, K.sub.y, A.sub.n,m,j are constants to define the shape of lens;n, m, j are integers satisfying conditions of 2.ltoreq.n, 0.ltoreq.m, 0.ltoreq.j, and 1.ltoreq.m+j;coefficients satisfy the following conditions: ##EQU2## which cannot be simultaneously zero.
    • PCT No.PCT / JP92 / 01310 Sec。 371日期:1993年6月3日 102(e)日期1993年6月3日PCT提交1992年10月8日PCT公布。 出版物WO93 / 07525 本发明的眼镜镜片具有表面,该表面是折射表面,被设置为使得两个坐标轴X和Y被设置为在其上的确定点处与折射表面接触,同时坐标轴的方向 并且确定包括两个轴的XY平面,从折射表面上的任意点向XY平面垂直线下降,然后表示垂直线和XY平面之间的交点的X,Y坐标 分别为x和y,垂直线的长度为z,z的值表示如下:m,j是定义透镜形状的常数; n,m,j是满足2≤n,0≤m,0≤j和1≤m+ j的条件的整数; 系数满足以下条件:| An,m,j | (3)(4)不能同时为零。