| 摘要 |
PROBLEM TO BE SOLVED: To avoid collision between an optical disk and an objective lens and to prevent or reduce damage to the signal recording layer of the optical disk. SOLUTION: The device performs reading and/or recording of signals for the signal recording layer of the optical disk 2 by irradiating the layer with a beam light 17; the device is provided with an objective lens 16 for irradiating the beam light to the signal recording layer, a lens holder 21 for supporting the objective lens, and a coating layer 24 formed on the end face 21b on the disk side of the lens holder; and the coating layer is formed with a material softer than the optical disk and superior in slidability, and is protruded to the optical disk side from the objective lens. |
