| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical base in which the incorporation adjustment of an optical element into the optical base is facilitated. SOLUTION: This optical base is constituted so as to house and support optical elements constituting an optical pickup. In this case, at the time of moving a light converging means 138a being one of the optical elements in an optical axis and adjusting it while the light converging means 138a is held elastically by a holding means 150, the light converging means 138a is uniformly held with pressing force. |
