Progressive power semi-finished spectacle lens blanks for astigmatic presbyopes

    公开(公告)号:US07150527B2

    公开(公告)日:2006-12-19

    申请号:US10919326

    申请日:2004-08-17

    IPC分类号: G02C7/06

    CPC分类号: G02C7/068 G02C7/028 G02C7/061

    摘要: An optical lab is provided with a set of different progressive power semi-finished spectacle lens blanks for different combinations of base curve, add power, cylinder and axis, where each semi-finished lens blank in the set has an unfinished surface and a progressive surface with a particular base curve and a particular add power. The progressive surface has been designed to provide optimal optical performance of a lens one surface of which is the progressive surface and another surface of which is a toric surface of a particular non-zero cylinder and a particular axis. Given a prescription of an astigmatic presbyope, the optical lab will select from the set the appropriate semi-finished lens blank and will surface the unfinished surface with the appropriate toric surface so that the progressive power spectacle lens matches the prescription.

    Progressive power semi-finished spectacle lens blanks for astigmatic presbyopes
    2.
    发明申请
    Progressive power semi-finished spectacle lens blanks for astigmatic presbyopes 失效
    渐进功率半成品眼镜镜片空白用于散光老花眼

    公开(公告)号:US20060050235A1

    公开(公告)日:2006-03-09

    申请号:US10919326

    申请日:2004-08-17

    IPC分类号: G02C7/06

    CPC分类号: G02C7/068 G02C7/028 G02C7/061

    摘要: An optical lab is provided with a set of different progressive power semi-finished spectacle lens blanks for different combinations of base curve, add power, cylinder and axis, where each semi-finished lens blank in the set has an unfinished surface and a progressive surface with a particular base curve and a particular add power. The progressive surface has been designed to provide optimal optical performance of a lens one surface of which is the progressive surface and another surface of which is a toric surface of a particular non-zero cylinder and a particular axis. Given a prescription of an astigmatic presbyope, the optical lab will select from the set the appropriate semi-finished lens blank and will surface the unfinished surface with the appropriate toric surface so that the progressive power spectacle lens matches the prescription.

    摘要翻译: 光学实验室设有一组不同的渐进功率半成品眼镜镜片坯料,用于基线曲线,增加功率,圆柱体和轴线的不同组合,其中组中的每个半成品镜片坯料具有未完成的表面和渐进表面 具有特定的基础曲线和特定的附加功率。 渐进表面被设计成提供透镜的最佳光学性能,其一个表面是渐进表面,另一个表面是特定非零圆柱体和特定轴线的复曲面。 给予散光老花眼的处方,光学实验室将从组中选择适当的半成品镜片毛坯,并用适当的复曲面来表面未完成的表面,使得渐进式力量眼镜镜片与处方相匹配。