| 摘要 |
PROBLEM TO BE SOLVED: To provide a calibration sensor unit for calibrating a spectacle lens processing device in which a processing tool accurately makes calibration regardless of electric conductivity. SOLUTION: This calibration sensor unit is equipped with: a fixing part installed on a lens chuck shaft instead of a spectacle lens; a contact member contacting with the processing tool; a support mechanism for movably supporting the contact member in the second axis direction orthogonal to the first axis direction being the lens chuck shaft direction when the fixing part is installed on the lens chuck shaft, that is, the support mechanism having an energizing member for energizing the contact member to the side separating from the fixing part in the second axis direction; a sensor arranged in the contact member or the fixing part for detecting that the contact member contacts with the processing tool, that is, the sensor for detecting that the contact member is moved by a very small distance to the fixing part side against the energizing member; and a signal transmission means for transmitting a detecting signal of the sensor to a control unit of the spectacle lens processing device. COPYRIGHT: (C)2011,JPO&INPIT
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