Design Parameters of Optical Pickup Actuator for the Next Generation

차세대 광 픽업 구동기를 위한 설계 변수

  • Han, Chang-Soo (Automation Eng., Korea Institute of Machinery and Materials) ;
  • Kim, Soo-Hyun (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
  • 한창수 (한국기계연구원 자동차연구부) ;
  • 김수현 (한국과학기술원 기계공학과)
  • Published : 2001.01.01

Abstract

The demands of high data transfer rate and high recording density in optical disk memory device are being increased. In this paper, 4 design parameters for next generation optical disk are investigated. As for the high data transfer rate, two design parameters such as driving acceleration and transmissibility are introduced. As the high recording density is concerned, the minimum linearity and the tilt of the actuator are introduced. Two kinds of pickup actuator are used to evaluate the validity of the parameters through the simulation and the experiment. The 4-wire actuator has good linearity but bad stability and tilt characteristics, while the rotary and axis actuator has good stability for the external vibration but bad linearity. It is demonstrated that the newly proposed design parameters are available to design and evaluate quantitatively the performance of the actuator for the next generation optical disk.

Keywords

References

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