A multi-beam optical disc drive is a method to enhance the datatransfer rate in an optical disc system by recording and reading onmulti-tracks. In this paper, the beam rotating actuator needed for amulti-beam optical disc drive is developed. The voice coil motor (VCM)is used as a driving mechanism for high resolution and small size. Arotating guide based on a link structure is designed for frictionlessrotation of the dove prism. The characteristics of the actuator aretested through a dynamic analyzer. It shows that the actuator has goodlinearity, rotating range ±0.34° , minimum resolution ofrotating angle 0.0066° and 1st natural frequency 113.9 Hz. Theactuator is used for a multi-beam optical disc system
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