| 摘要 |
PURPOSE:To obtain an optical pickup easy to perform lens cleaning and with a low tone through the air by constituting a transparent plate provided between an objective lens and a disk as a part of the cap of a lens actuator. CONSTITUTION:By providing a transparent plate filter 10 fixed on the cap of the actuator between the disk 11 and the objective lens 9, it is possible to protect the objective lens 9 itself from dust and dirt from the outside even when it is used for a long period. Furthermore, since the sealing state of a lens actuator part can be generated by the transparent plate filter 10, it is possible to prevent the tone through the air from being generated due to the motion of the lens actuator, and an extremely quiet optical pickup can be obtained. |
