| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens frame shape measuring device hard to cause distortion of a lens frame when measuring the shape of the lens frame of a spectacle frame composed of a material susceptible to distortion by the pressing force from a probe at the time of measurement. SOLUTION: In the lens frame shape measuring device, lens frames (LF, RF) of a spectacle frame MF is held by a holding means (frame holding means 11) and a probe 4 is pressed by an energizing means against a lens frame groove 5 arranged along the inner circumference of the lens frames (LF, RF) and moved along the lens frame groove 5, so that the movement position of the probe 4 is detected by a measuring means. Moreover, pressing members (18, 18') are provided for pressing, in an opposite direction to the direction in which the measurement pressure is applied from the probe, a portion of the lens frames (LF, RF) not held by the holding means (frame holding means 11) of the lens frames (LF, RF) and susceptible to distortion by the measurement pressure from the probe 4 when the probe 4 moves. COPYRIGHT: (C)2009,JPO&INPIT
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