Patent ID: 6104675
Filing Date: 2000-08-15
Classification: B82Y,G11B

Abstract:
An apparatus for using laser light to access a magneto-optical disc comprising:a first objective lens;an actuator to move the first objective lens in an axial direction with respect to a surface of the magneto-optical disc;an integrated magnetic head comprising:a slider having a primary planar surface that flies over the surface of the magneto-optical disc during read and write operations, the slider having a light channel to permit the laser light to pass through the magnetic head;a second objective lens fixedly mounted in the light channel; anda magnetic coil disposed about the light channel near to the primary planar surface to generate a magnetic field for reading and writing operations;during the reading and writing operations the laser light being focused by the first and second objective lenses onto the magneto-optical disc, focus being maintained solely by the actuator moving the first objective lens in the axial direction.