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    • 10. 发明授权
    • Series of lenses
    • 系列镜片
    • US5854669A
    • 1998-12-29
    • US553499
    • 1996-03-21
    • Helmut AltheimerNorbert AwrathRudolf BarthPeter BaumbachJochen BrosigGregor EsserMonika FuessGuenther GuilinoWalter HaimerlChristine MeixnerHerbert PfeifferManfred Rohrbach
    • Helmut AltheimerNorbert AwrathRudolf BarthPeter BaumbachJochen BrosigGregor EsserMonika FuessGuenther GuilinoWalter HaimerlChristine MeixnerHerbert PfeifferManfred Rohrbach
    • G02C7/06G02C7/02
    • G02C7/065G02C7/061G02C2202/08
    • The present description refers to a series of progressive lenses, wherein the lenses present a different surface power in the distance-vision part and/or a different increase of the surface power from the distance-vision part towards the near-vision part (termed addition Add hereinafter), and whereof each comprises a front surface having a continuously varying surface power which increases from the respective value BK �dpt!, which is suitable for distance vision, at the point having the coordinates x=0 mm, y=8 mm in the lower region of the distance-vision part along a wound line (primary line), which coincides approximately with the primary line of view, with eyes dropped, towards a value suitable for near vision in the upper region of the near-vision part, which value is greater than the value of the surface power BK in the lower region of the distance-vision part by the value ADD �dpt! of the addition, and having a surface, in particular the surface on the concave side, which has a spherical shape or an aspherical shape, respectively. The present invention is characterized by the aspects that for the maximum height y of the line on which the surface astigmatism is 0.5 dpt and which defines the lower limit of the region suitable for clear vision on either side of the primary line at a distance of 25 mm, applies: y=f(Add,BK)=b(BK)+a/Add*1000) b(BK)=a.sub.0 +a.sub.1 *BK+a.sub.2 *BK.sup.2 and that for the coefficients on the nose side and the temporal side of the primary line applies: ______________________________________ nose side temporal side ______________________________________ a -8.5 .+-. 20% -7.5 .+-. 20% a.sub.0 18...19 mm 19...20 a.sub.1 -3580 .+-. 29% mm.sup.2 -4520 .+-. 20% mm.sup.2 a.sub.2 390 000 .+-. 20% mm.sup.3 480 000 .+-. 20% mm.sup.3. ______________________________________
    • PCT No.PCT / DE95 / 00438 Sec。 371日期1996年3月21日 102(e)1996年3月21日PCT 1995年3月30日PCT PCT。 WO95 / 27229 PCT公开号 日期1995年10月12日本说明书涉及一系列渐进透镜,其中透镜在距离视觉部分中呈现不同的表面光焦度和/或从远距离视觉部件向近距离视觉部件的表面光焦度的不同增加, 视觉部分(以下称为附加添加),并且其中每个包括具有连续变化的表面光焦度的前表面,其从坐标x = 0mm的点处适合于距离视觉的相应值BK [dpt]增加 ,沿着绕线(主线)的距离视觉部分的下部区域中的y = 8mm,其大致与主视线重合,眼睛下降,朝向适合于在上部区域的近视力的值 该远视觉部分的值大于距离视觉部分的下部区域中的表面光焦度BK的值,该值为加法的值ADD [dpt],并且具有表面,特别是表面 凹的 ide,其分别具有球形或非球面形状。 本发明的特征在于,对于表面散光为0.5dpt的线的最大高度y,并且限定适于在主线两侧的清晰视野的区域的下限,距离为25 mm,适用:y = f(Add,BK)= b(BK)+ a / Add * 1000)b(BK)= a0 + a1 * BK + a2 * BK2,鼻子侧和时间 主线适用: - 鼻侧颞侧 - a -8.5 +/- 20%-7.5 +/- 20% - a0 18 ... 19 mm 19 ... 20 - a1 -3580 +/- 29% mm2 -4520 +/- 20%mm2 - a2 390 000 +/- 20%mm3 480 000 +/- 20%mm3。 -