| 摘要 |
PROBLEM TO BE SOLVED: To reduce cost by flexibly coping with the specification change of an optical head part and its moving mechanism which constitute an optical disk device. SOLUTION: In this optical disk device 1, an optical head part 3 is constituted of a control unit 4 of a beam spot which includes the component 4a of an optical system and the driving mechanism 7 in the focusing direction or tracking direction and a cover member 5, then the part 5a to be guided and the part 5b to be attached to the moving mechanism 9 are formed on the cover member 5. The cover member 5 is moved by the moving mechanism 9 along the nearly radial direction of a recording medium 2 after it is attached to the control unit 4. |
