| 摘要 |
PROBLEM TO BE SOLVED: To improve the reproducing accuracy of a signal for a disk even if external vibration occurs. SOLUTION: A pickup body 100 and a sub-pickup body 200 are connected to be rotated via a bearing part 183. Then, a groove 184 having a specified dimension is formed between the bearing part 8 and the pickup body 100 and a thickness between the pickup body 100 and the bearing part 8 is set thin. Thus, resonance of the pickup body 100 and the sub-pickup body 200 is suppressed and vibration transmission therebetween is reduced. |
