| 摘要 |
PURPOSE:To efficiently attain high-speed access in a short time in respect of an optical disk device. CONSTITUTION:The device is constituted so that plural pieces of mirrors 111, 112,... are arranged on the radial direction of an optical disk 6, and a control part 13 to move plural mirrors in conformity to an accessing position and in addition, switch and control each mirror so as to insert/avoid the prescribed mirror to/from a straight advance beam optical path 14 is provided. |
