摘要 |
PURPOSE:To prevent dust or trash from being adsorbed to an optical disk by mounting a conductive mat on the internal surface of a main body to house the optical disk. CONSTITUTION:In the recessed part on the internal surface of a main body 2 surrounded by circular and ringular step parts 2e 2f, a thin and disk-shaped conductive mat 4 is mounted at a height lower than that of the step parts 2e and 2f where a rectangular opening 4 is formed. On the internal surface of one guide hole 2d, a conductive layer 5 is formed and a positioning pin 6 is formed by metal as a satisfactory conductor so as to fit a point connecting the conductive mat 4 and the guide hole 2d, where the conductive layer 5 is formed, and this pin is connected to a ground line 7. The conductive mat 4 connected with the ground line 7 discharges a potential, which is charged on an optical disk 1, by corona discharge. Thus, the dust or trash is not adsorbed on the surface of the optical disk and the reliability of an optical disk cartridge is improved. |