OPTICAL PICKUP DEVICE

摘要

PURPOSE: An optical pickup device is provided to make an optical beam be incidence and be reflected on/from a record medium by adjusting a slope of a beam axis. CONSTITUTION: The optical pickup device comprises: a base plate(210) installed so as to be rotatable against a fixing base(200); a bobbin(230) loaded on the base plate and movably supported by a predetermined wire; an object lens(190) loaded on the bobbin, for focusing an incidence optical beam so that an optical spot is generated on a record medium; a focusing coil(260) installed at the bobbin, for forming a current path for focusing; a first magnet and a first yoke(240) installed at the base plate, for generating an electromagnetic force driving the bobbin by forming a magnetism in a perpendicular direction to a current which flows the focusing coil; a fixing optical system(100) for irradiating an optical beam toward the record medium and collecting an optical light incident through the object lens and reflected from the record medium; a reflection mirror(180) installed at the base plate so as to be disposed between the object lens and the fixing optical system, for changing a progressive path; a support arm(182) having one end fixed to the fixing base and the other end supporting the reflection mirror so as to be rotatable; and a tilt unit(430) for rotating the base plate by use of the support arm as the rotating axis to adjust a slope of the optical axis through the object lens and the reflection mirror.