| 摘要 |
PURPOSE: To correctly grind an ophthalmic lens by providing a readout place reading out the positions in the axial direction of specified zones in the respective front and rear surfaces having different curvature of the ophthalmic lens. CONSTITUTION: The probes of a readout place 53 are energized by springs, for example, supported on a chassis so as to respectively elastically contact with an ophthalmic lens 10. The ophthalmic lens 10 is rotated under the control of a drive motor 24. Because the position of the lens contacted with the probe is a curved shape, accompanying this rotation the probe is moved in the axial direction, this motion is detected with a receiver part, transferred from the receiver part to a control unit 39, and it is input and stored in the control unit 39. The angular indexing of the axial motion is performed against the original line or the reference line of the ophthalmic lens 10. |
