Eyeglass-frame-shape measuring device and eyeglass-lens processing apparatus having the same

An eyeglass-frame-shape measuring device for measuring a lens frame shape of an eyeglass frame, the device comprising:

• holding means for holding the frame in a predetermined condition;
• a feeler movable while being kept in contact with a frame groove of the frame held by the holding means;
• measuring means for obtaining information on warp of the frame based on an amount of movement of the feeler;
• moving means having a motor for moving the feeler in a direction of the warp of the frame, which is perpendicular to a direction of radius vector of the frame;
• control means for variably controlling driving of the motor during measurement based on the information on the warp obtained by the measuring means.

A eyeglass-frame-shape measuring device for measuring a lens frame shape of an eyeglass frame, the device comprising:

• holding means for holding the frame along a measurement reference plane having a predetermined inclination with respect to a horizontal plane;
• a feeler movable while being kept in contact with a frame groove of the frame held by the holding means;
• measuring means for obtaining information on radius vector of the frame based on an amount of movement of the feeler;
• moving means having a motor for moving the feeler in a direction along the measurement reference plane;
• control means for variably controlling driving of the motor during measurement based on the information on the inclination of the measurement reference plane.

An eyeglass-frame-shape measuring device for measuring a lens frame of an eyeglass frame, the device comprising:

• a frame holding unit which holds and clamps the frame using a plurality of clamp pins, a mating pair of the plurality of clamp pins being moved toward and away from each other symmetrically with respect to a measurement reference plane;
• a feeler unit including:
• a feeler movable while being kept in contact with a frame groove of the frame held by the frame holding unit;
• a first support base on which the feeler is mounted;
• a first encoder which detects an amount of movement of the first support base;
• a first motor which moves the first support base;
• a second support base on which the first support base is movably mounted;
• a second encoder which detects an amount of movement of the second support base;
• and
• a second motor which moves the second support bale;
• a rotation unit having a rotation base on which the second support base is movably mounted, and a third motor which rotates the rotation base at a predetermined angular interval;
• and
• a control unit which obtains information on a lens frame shape based on a rotational angle of the third motor, a detected amount of the first encoder and a detected amount of the second encoder, and which variably controls driving of at least one of the first and second motors based on the information on the lens frame shape thus obtained.