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    • 9. 发明授权
    • Fining and polishing machine and method for ophthalmic lenses
    • 精细抛光机及眼镜镜片
    • US06074281A
    • 2000-06-13
    • US200626
    • 1998-11-30
    • S. Keith SwansonJohn R. Keller
    • S. Keith SwansonJohn R. Keller
    • B24B1/00B24B13/06
    • B24B1/00B24B13/06
    • A fining and polishing machine and method enable a work piece, suitably a spectacle lens, to be polished with a relative motion between the lens and a tool that is precisely matched to the specific lens prescription. The lens and tool are reciprocated along first and second non-co-linear axes, respectively, and the lens is polished as each reciprocates. The relative motion between lens and tool is equal to the vector sum of their individual motions. By precisely controlling the reciprocation of lens and tool, a wide range of desired motions can be obtained, enabling a lens to be polished to a particular prescription by altering the frequency and/or amplitude of the reciprocating motions along the two axes. A controller drives a pair of actuators which reciprocate the lens and tool in accordance with resident motion equations, as realized with prescription-specific amplitude and frequency parameters received as inputs.
    • 精细抛光机器和方法使得工件(适当地是眼镜镜片)能够通过透镜和与特定镜片处方精确匹配的工具之间的相对运动来抛光。 透镜和工具分别沿着第一和第二非共线轴线往复运动,并且透镜在每次往复运动时被抛光。 透镜和工具之间的相对运动等于其各自运动的矢量和。 通过精确地控制透镜和工具的往复运动,可以获得宽范围的期望运动,通过改变沿着两个轴的往复运动的频率和/或振幅,能够将透镜抛光到特定处方。 控制器驱动一对致动器,其根据常驻运动方程往复运动镜片和工具,如用作为输入接收的处方特定的幅度和频率参数所实现的。