Innovative three-axial actuator for high-density optical drive

Yung Sung Lan; Chung-Hao Tien

doi:10.1109/TMAG.2007.906461

Innovative three-axial actuator for high-density optical drive

Yung Sung Lan^*, Chung-Hao Tien

^*Corresponding author for this work

National Chiao Tung University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

As the density in optical data storage systems increases, a drive capable of tilt control thus becomes necessary in order to improve the tilt margin as the coma aberration is accordingly increased. In this paper, we propose an innovative three-axial actuator based on a traditional four-wire scheme with an additional pair of tilting magnets. The proposed coil-driven servo can independently compensate ± 1 tilt degree associated with a torque variation of less than 5 %. The driving forces of the focusing and tracking are kept constant while the tilt servo is activated.

Original language	English
Pages (from-to)	4102-4105
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	43
Issue number	12
DOIs	https://doi.org/10.1109/TMAG.2007.906461
State	Published - 1 Dec 2007

Keywords

Electromagnetic force
Magnetization
Optical pickup actuator
Three-axis

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Innovative three-axial actuator for high-density optical drive

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