| 摘要 |
PROBLEM TO BE SOLVED: To impart excellent vibration proof and impact resistance to the device by forming supporting springs for supporting a bobbin relatively displaceably to a base member into a tapered shape on the side of fixing to the bobbin. SOLUTION: An object lens 1 is fixed to the bobbin 2, while a focusing coil 3 and tracking coils 4 are stuck and fixed to the bobbin 2. A holding member 8 is fixed to a base member 6, and then a substrate 9 is fitted to the holding member 8. One-end parts of plural supporting springs 12 are fixed to the substrate 9 fitted with the holding member 8, while the other-end parts to a relay substrate 5 fixed to the bobbin 2 respectively. The supporting springs 12 are in a tapered shape to be wider on the side of fixing to the bobbin 2. Consequently, the occurrence of stress on the fixed part to this bobbin 2 can be relaxed. |
