| 摘要 |
PURPOSE: A slider head device of an optical magnetic recorder/player is provided to reduce contaminant of a solid immersion lens and reduce distortion of a beam due to thermal transformation of the solid immersion lens. CONSTITUTION: A condensing lens(22) refracts light(21) for condensing the light at a lower part. A solid immersion lens(23) is installed at an optical path for transmitting the light refracted from the condensing lens to a surface of a disc(3) for generating an optical near field. A first coil(24) is arranged at a lower part of the solid immersion lens for converting an optical magnetic direction of the disc. A second coil(25) is arranged between the solid immersion lens and the condensing lens for reducing load generation of the first coil. A current is applied to the first and the second coils at the same time, so that generation of magnetic force is distributed at a ratio of 7 to 3.
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