| 摘要 |
PURPOSE: A supporting structure of an optical pick-up actuator is provided to variably change tracking and focusing operations and rolling frequency by variably changing the width and shape of a plate spring, thereby realizing the stable operations. CONSTITUTION: A supporting structure of an optical pick-up actuator has a plate spring shape with a regular height. A plate spring(37) includes a first area and a second area including end parts fixedly connected to the actuator for actually supporting the actuator, and a third area including a center part from the end parts. The length of the end of the third area is smaller than the sum length of the first and second areas. The width of the end of the third area is different from the widths of the first and second areas.
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