Title :
Integrated Tracking and Focusing Systems of MEMS Optical Pickup Head
Author :
Cheng, Hao-Der ; Hsiao, Sheng-Yi ; Wu, Mingching ; Fang, Weileun
Author_Institution :
Dept. of Power Eng., Nat. Tsing Hua Univ., Hsin Chu
Abstract :
This paper presents a novel bidirectional-driven microelectromechanical systems (MEMS) light manipulation stage. The designed device consists of two actuators integrated with a lens to act as both tracking (in-plane) and focusing (out-of-plane) components for optical pickup head. The actuator is driven by thermal, as well as magnetic, means. According to a static-load deflection test, this device can achieve bidirection actuation with output displacement up to plusmn54.5 mum. In addition, this MEMS device has a very small form factor and provides an excellent response time and size reduction. It can be employed on the portable optical storage system
Keywords :
disc drives; electromagnetic actuators; microactuators; optical disc storage; MEMS optical pickup heads; bidirectional-driven microelectromechanical system; electromagnetic actuator; focusing system; light manipulation; tracking system; Actuators; Integrated optics; Lenses; Magnetic heads; Microelectromechanical devices; Microelectromechanical systems; Micromechanical devices; Optical design; Optical devices; Testing; Electromagnetic actuator; light manipulation; optical microelectromechanical systems (MEMS); pickup head;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.888420
