| 摘要 |
PROBLEM TO BE SOLVED: To provide a protective disk for preventing sticking of dusts or tar to an optical pickup lens during non-use of an optical disk reproducing device. SOLUTION: This protective disk is loaded in an optical disk reproducing device instead of an optical disk during non-use of the optical disk reproducing device having an optical pickup lens, the optical disk being attached/detached therefrom. In this case, the protective disk includes a disk member 2, having the same shape as that of the optical disk and a ring-like elastic member 2a fixed in a radial position equivalent to at least the reading start position of the optical pickup. The elastic member 2a is made of a material having electrical conductivity. |
