Pickup device

Abstract

Abstract PURPOSE:To simplify the production to fit it for mass production by fixing tracking coils to a lens as print coils as one body. CONSTITUTION:A lens 12 is attached to a cylindrical lens frame 13, and the lens frame 13 is attached to a magnetic field generating means. A coil bobbin 17 is attached to the lens frame 13, and four print coils 18-21 are provided on the surface of the bobbin 17. A coil 22 for driving in the direction of the optical axis is wound on coils 18-21. The bobbin 17 to which the lens 12 is fixed is moved in the direction orthogonal to the optical axis of the lens if a current in a proper direction is flowed to coils 18-21, and the coil bobbin 17 is moved in the direction of the optical axis if a current is flowed to the coil 22.

Inventors

• 👤 Shunpei Tanaka
• 👤 俊平 田中

Bibliographic Details