| 摘要 |
PURPOSE:To sufficiently clean without generating the deformation and the break, etc., of an objective lens and to save the handling time. CONSTITUTION:A brush 22 with a long hair having conductivity is attached to the tip part of a movable body 20 pushed out and pulled back by a drive source 18. The brush 22 is placed on a retreat position C previously before an optical head 4 arrives at the retreat position C. When the optical head 4 arrives at the retreat position C, the brush 22 is slided and in contact with the objective lens 8 and the peripheral part of the lens in the state of being bended elastically by the movement of the optical head 4, and the cleaning and the discharge are performed by the slide and the contact. |
