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    • 2. 发明授权
    • Eyeglass lens processing apparatus
    • 眼镜镜片加工设备
    • US06478657B1
    • 2002-11-12
    • US09612252
    • 2000-07-07
    • Ryoji Shibata
    • Ryoji Shibata
    • B24B908
    • B24B9/148B24B19/03B24B49/02
    • In an eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, a lens is held and rotated, and a chamfering abrasive wheel rotating shaft axially supports at least one chamfering abrasive wheel and has a rotational axis different from an axis about which a rough abrasive wheel and a finish abrasive wheel are rotatable. The chamfering abrasive wheel is moved between a retreated position and a processing position. The chamfering abrasive wheel is urged toward the lens during chamfering processing. Position data of a corner portion of the periphery of the lens are detected based on target lens shape data of an eyeglass frame or a template and layout data of the lens with respect to a target lens shape. An arithmetic system obtains position data of a contact point between the lens and the chamfering abrasive wheel with respect to a rotational angle of the lens based on the position data of the corner portion of the periphery thus obtained and configuration data of a processing surface of the chamfering abrasive wheel, and obtains lens rotational velocity data for making a moving speed of the contact point substantially constant based on the position data of the contact point thus obtained.
    • 在用于处理眼镜镜片周边的眼镜镜片加工装置中,透镜被保持并旋转,并且倒角砂轮旋转轴轴向地支撑至少一个倒角砂轮,并且具有不同于粗糙度 研磨轮和精砂轮可旋转。 倒角砂轮在退回位置和加工位置之间移动。 在倒角加工期间,倒角砂轮被推向镜片。 基于眼镜框架或模板的目标透镜形状数据和透镜相对于目标透镜形状的布局数据检测透镜周边的角部的位置数据。 运算系统基于由此得到的周边的角部的位置数据,获得透镜和倒角砂轮之间的接触点相对于透镜的旋转角度的位置数据, 并且获得用于使接触点的移动速度基于由此获得的接触点的位置数据基本上恒定的透镜旋转速度数据。