Reading lens device

Abstract

Abstract PURPOSE:To perform focusing and tracking with coils for driving provided around a magnet, by fitting a lens at the center of a flat shaped magnet. CONSTITUTION:A flat shaped magnet 2 is magnetized toward the broadwise direction and has different magnetic polarity by taking the center where a reading lens 1 is fitted as a boundary. The magnet 2 is supported with a supporter 3 made of an elastic material. A focusing coil 5 and a tracking coil 6 are provided to clip the magnet 2, and the reading lens can be moved orthogonally to the optical axis and in the direction of optical axis, by flowing a current to the coils.

Inventors

• 👤 Osamu Tajima
• 👤 修 田島

Bibliographic Details