SLIM-TYPE OPTICAL PICKUP ACTUATOR, PARTICULARLY RELATED TO CONFIGURING FOCUSING/TRACKING MAGNETIC CIRCUITS ON THE CENTER OF A LENS HOLDER, AND CONFIGURING A RADIAL TILTING MAGNETIC CIRCUIT ON OTHER SIDE OF THE LENS HOLDER

摘要

PURPOSE: A slim-type optical pickup actuator is provided to configure coils for tracking/focusing driving between two magnets, and to install a radial tilting coil and a magnet on other side of a lens holder, thereby enabling a multiaxial driving function. CONSTITUTION: A lens holder(202) is mounted with a protruded objective lens(201), and comprises a coil supporting portion(210) between the first and second receiving grooves. A focusing coil(203) is horizontally wound on the center of the coil supporting portion(210). Tracking coils(204) are vertically wound on both sides of the focusing coil(203). A radial tilting coil(205) is horizontally wound on other rear side of the lens holder(202). The first yoke(207a) is protruded from a pickup base(207). The first magnet(206) is attached to the first yoke(207a). The second yoke(207b) is protruded from the pickup base(207). The second magnet(213) is attached to the second yoke(207b).