- 다중 빔 광디스크 시스템을 위한 자기 구동형 빔 회전 구동기의 개발
- ㆍ 저자명
- 이청희,김수현,곽윤근,Lee. Cheong-Hee,Kim. Soo-Hyun,Kwak. Yoon-Keun
- ㆍ 간행물명
- 한국정밀공학회지
- ㆍ 권/호정보
- 2000년|17권 10호|pp.83-88 (6 pages)
- ㆍ 발행정보
- 한국정밀공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
multi-beam optical drive is a method to improve the data transfer rate for the optical disc systems by parallel recording and reading on neighboring multi-tracks. In this paper, the beam rotating actuator, which is necessary for the multi-bean optical disc drive to from beam spots on multi-tracks simultaneously, has been developed. The Voice Coil Motor is used as a drive mechanism for high resolution and small size of the actuator. And rotating guide based on link structure is designed for frictionless and axisless rotation of rotating part including dove prism and for rotating in axis of geometric center of dove prism. The characteristics of the actuator are experimented by laser vibrometer, Polytec OFV1102 and a dynamic analyzer, HP35670A. It shows that the actuator has good linearity, rotating range $pm0.34^circ$, minimum rotating angle $0.0066^circ$and natural frequency 113.9Hz. Therefore the actuator can be applied in a multi-beam optical disc system.