| 摘要 |
PURPOSE:To obtain a pickup having high resistance to environment and a low level in noise, by using a light transmissive cover to seal up the outlet of a focus actuator. CONSTITUTION:A transparent cover 31 made of a light transmissive glass, plastic, etc. is attached to a case 25 of an actuator to seal up the inside of a pickup device. Thus the sounds generated inside the pickup device are shut off, and at the same time the mixture of dust or waterdrops into the device. This improves the resistance to environment and reduces the level in noise for a pickup. |
