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    • 21. 发明授权
    • Progressive ophthalmic lens
    • 渐进式眼科镜片
    • US06213603B1
    • 2001-04-10
    • US09370246
    • 1999-08-09
    • Helmut AltheimerGregor EsserHerbert PfeifferRudolf BarthMonika FuessWalter Haimerl
    • Helmut AltheimerGregor EsserHerbert PfeifferRudolf BarthMonika FuessWalter Haimerl
    • G02C706
    • G02C7/063G02C7/061
    • A progressive ophthalmic lens including at least one distant vision zone in which the power is suitable for distant viewing, at least one near vision zone in which the power is suitable for near viewing, and at least one progression zone in which the power varies continuously from the power of the distant vision zone to the power of the near vision zone along a principal line, at least one surface of the ophthalmic lens contributing to the power variation. A surface astigmatism of the at least one of surface of the ophthalmic lens contributing to the power variation along at least one horizontal intersection, represented by an intersection of the ophthalmic lens and a horizontal plane where y=const, has a local maximum value located at a distance of not more than 4 mm from the principal line, and at least one local minimum value which does not lie on the principal line and is located at a greater distance from the principal line than the local maximum value.
    • 一种渐进式眼科镜片,包括至少一个远视力区域,其中所述功率适合于远距离观察,其中所述功率适合于近距离观察的至少一个近视区域以及其中所述功率连续变化的至少一个进展区域 远视区的力量沿着主线的近视区的力量,眼镜的至少一个表面有助于功率变化。 有助于沿着至少一个水平交点的功率变化的至少一个表面的表面散光,由眼镜片和y = const的水平面的交点表示,其中位于 距离主线不超过4mm的距离,以及至少一个局部最小值,其不位于主线上并且位于距离主线比距局部最大值更大的距离处。
    • 24. 发明授权
    • Method for computing a progressive spectacle lens and methods for manufacturing a spectacle lens of this kind
    • US06832834B2
    • 2004-12-21
    • US10280091
    • 2002-10-25
    • Walter HaimerlHerbert PfeifferGregor EsserHelmut Altheimer
    • Walter HaimerlHerbert PfeifferGregor EsserHelmut Altheimer
    • G02C706
    • G02C7/065G02C7/024G02C7/025G02C7/027G02C7/061
    • A method for computing a spectacle lens, which includes a region (distance portion) designed for viewing at large distances and in particular “to infinity”, a region (near portion) designed for viewing at short distances and in particular “reading distances,” and a progressive zone disposed between the distance portion and the near portion, in which the power of the spectacle lens increases, from a value at a distance reference point located in the distance portion to a value at the near reference point located in the near portion along a curve (principal line) veering towards the nose, by an amount designated as addition power. The method includes the steps of stipulating as initial parameters a course of a projection x0(y) of the principal line on an x,y plane, and also properties of the spectacle lens along the principal line whilst taking into account spherical, cylindrical, and possibly also prismatic prescription values and the addition power, as well as an interpupillary distance, and computing with these stipulations at least one strip of second order on a progressive surface of the spectacle lens, stipulating an object-distance function Al(y) which describes a change of object distance with a movement, in particular a lowering, of a glance, determining on each horizontal meridian of the progressive spectacle lens a point of penetration of a principal ray through the progressive surface, for which point a distance of a point of intersection of this principal ray with a plane which bisects the interpupillary distance is equal to the object distance given by the object-distance function Al(y), computing for the entirety of these points of penetration lying on the principal viewing line a course of the projection x′0(y) on the x,y plane, equating the course x0(y) to x′0(y) and checking the coincidence, subsequently iteratively repeating the steps a. to e. until the projection x0(y) of the principal line is equal (within given limits) to the course of the principal viewing line projection x′0(y) used for the computation of the respective surface.
    • 29. 发明申请
    • Double progressive spectacle lens
    • 双渐进眼镜镜片
    • US20060007392A1
    • 2006-01-12
    • US11128302
    • 2005-05-13
    • Gregor EsserWalter HaimerlEdda WehnerAndrea WelkHelmut AltheimerMartin Zimmerman
    • Gregor EsserWalter HaimerlEdda WehnerAndrea WelkHelmut AltheimerMartin Zimmerman
    • G02C7/06
    • G02C7/068G02C7/061
    • A double-progressive spectacle lens in which the progressive action is distributed over the front and rear surfaces of the double-progressive spectacle lenses and described by the quotient Q Q=Addvfl/AddGesamt where Addvfl represents the increase in the surface dioptric power along the principal line on the front surface between the distance area and the near area, and ADDGesamt represents the increase in the total dioptric power along the principal line between the distance area and the near area, and the fraction Q increases with growing distance area effect F: ⅆ Q ⁡ ( F ) ⅆ F ⩾ 0.
    • 双渐进式眼镜镜片,其中逐行动作分布在双渐进式眼镜镜片的前表面和后表面上,并由商Q <β线内公式描述=“在线公式”结束=“ 引用“?> Q =添加 /添加 <?in-line-formula description =”In-line Formulas“end =”tail“?> SUB> vfl 表示沿着距离区域和近区域之间的前表面上的主线的表面屈光度的增加,并且ADD Gesamt 表示总屈光力的增加 沿着距离区域和近区域之间的主线,分数Q随着距离区域效应的增加而增加F: F 0