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    • 7. 发明公开
    • IMPROVED SINGLE VISION LENSES
    • 改进的单视力镜片
    • EP0900403A1
    • 1999-03-10
    • EP97908088.0
    • 1997-03-21
    • SOLA INTERNATIONAL HOLDINGS, LTD.
    • PERROTT, Colin, MauriceO'CONNOR, Kevin, DouglasEDWARDS, Simon, JohnBARKAN, Eric, F.SKLAR, David, H.
    • A61F9G02C7
    • A61F9/022G02C7/02
    • Optical lens element with a prescription zone, suitable for use in wraparound or protective type eyewear. The element may also include a peripheral vision zone, with no prismatic jump between the zones. Design methods for the prescription zone include temporally rotating a prescription section about a vertical axis through the optical center thereof, and/or decentring the optical axis of said prescription section relative to the geometric axis thereof, and providing partial surface correction for astigmatic and/or mean power errors. For prescription powers in the range -6.0 to +6.0 diopters with 0 to 3 cyl, the optical lens element may be designed such that its front surface can be mounted in a frame of constant curvature of at least 5.0 diopters, with its back surface providing good clearance from temples and eyelashes. Applications include ophthalmic sunglass lenses.
    • 配有处方区域的光学镜片,适用于环绕式或保护式眼镜。 该元件还可以包括周边视觉区域,区域之间没有棱镜跳跃。 用于处方区域的设计方法包括通过其光学中心围绕垂直轴临时旋转处方部分,和/或使所述处方部分的光轴相对于其几何轴偏心,并且为散光和/或散光提供局部表面校正 平均功率误差。 对于屈光度为-6.0至+6.0屈光度范围为0至3 cyl的处方能力,光学透镜元件可以被设计为使得其前表面可以安装在至少5.0屈光度的恒定曲率的框架中,其后表面提供 从寺庙和睫毛中清除好。 应用包括眼镜太阳镜镜片。