| 摘要 |
In an optical pickup apparatus which includes an objective lens which condenses laser light on a recording surface of an optical disk, and a lens holder which holds the objective lens and whose location can be changed, a detection coil for a proximity sensor is disposed on a top surface of the lens holder. The detection coil detects a distance to the recording surface of the optical disk which is made of a metallic material, and control is provided so that the objective lens will not contact the optical disk.
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