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

Volume

43

Issue

2

fYear

2007

Firstpage

805

Lastpage

807

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.888420

Filename

4068993