A scanning display optical system is disclosed that can optically correct the distortion of images formed by two-dimensional scanning of a light beam. The scanning display optical system comprises a deflection device deflecting a light beam from a light source two-dimensionally and an image-forming optical system forming an image with the light beam deflected by the deflection device. A direction from which the light beam coming from the light source is incident on the deflection device is oblique with respect to at least one of the two deflection axes of the deflection device. The image-forming optical system includes an optical element which is tilted and/or shifted with respect to a center axis of a two-dimensional deflection range over which the light beam is deflected by the deflection device.

 
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> Magnetic media with embedded optical servo tracks

> INFORMATION RECORDING/REPRODUCING APPARATUS FOR RECORDING/REPRODUCING INFORMATION WITH RESPECT TO INFORMATION STORING MEDIUM WITH GUIDE TRACKS AND INFORMATION TRACKS, AND TRACKING METHOD USING THE INFORMATION STORING MEDIUM
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