Title :
Development of beam rotating actuator based on voice coil motor type for multi-beam optical disc system
Author :
Cheong Hee Tee ; Lee, Jung Hyun ; Kim, Soo Hyun ; Kwak, Yoon Keun
Author_Institution :
Dept. of Mech. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
A multi-beam optical disc drive is a method to enhance the data transfer rate in an optical disc system by recording and reading on multi-tracks. In this paper, the beam rotating actuator needed for a multi-beam optical disc drive is developed. The voice coil motor (VCM) is used as a driving mechanism for high resolution and small size. A rotating guide based on a link structure is designed for frictionless rotation of the dove prism. The characteristics of the actuator are tested through a dynamic analyzer. It shows that the actuator has good linearity, rotating range ±0.34°, minimum resolution of rotating angle 0.0066° and 1st natural frequency 113.9 Hz. The actuator is used for a multi-beam optical disc system
Keywords :
actuators; disc drives; optical disc storage; beam rotating actuator; data transfer rate; dove prism; dynamic analyzer; frictionless rotation; multi-beam optical disc; multi-tracks; optical disc drive; rotating guide; voice coil motor; Actuators; Diodes; Drives; High speed optical techniques; Laser beams; Lenses; Mechanical engineering; Optical noise; Optical recording; Structural beams;
Conference_Titel :
Intelligent Robots and Systems, 1999. IROS '99. Proceedings. 1999 IEEE/RSJ International Conference on
Conference_Location :
Kyongju
Print_ISBN :
0-7803-5184-3
DOI :
10.1109/IROS.1999.811753
