| 摘要 |
PURPOSE:To make a device thin without degrading the performance by providing a two-axis driving control part of which an objective lens is placed on the outside, an optical system base which has the attaching face of optical parts as the upper face, and plural stuck reflection mirrors. CONSTITUTION:In a two-axis driving control part 119, an objective lens 114 is placed on the outside of a focus coil 124 with a supporting shaft 120 as the center. Consequently, reflection mirrors 105a and 105b can be arranged at the height lower than the two-axis driving control part. In an optical system block 118, optical parts are fixed to an optical system base 117. Two reflection mirrors 105a and 105b are stuck to each other. Thus, the height of the two-axis driving control part determines that of an optical head device, and the degradation in performance due to the reduction of the height is prevented. |
