MEMS-based miniature optical pickup

Yi Chiu Yi Chiu,Weileun Fang Weileun Fang,Cheng-Huan Chen Cheng-Huan Chen,H.-P.D Shieh,Jin-Chern Chiou Jin-Chern Chiou

doi:10.1109/tmag.2004.842077

MEMS-based miniature optical pickup

Yi Chiu Yi Chiu, Weileun Fang Weileun Fang + Show 3 more

https://doi.org/10.1109/tmag.2004.842077

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Journal: IEEE transactions on magnetics	Publication Date: Feb 1, 2005
Citations: 22

Affiliation: National Yang Ming Chiao Tung University, National Tsing Hua University, National Taiwan University of Science and Technology

#Microelectromechanical Systems Micro #Continuous Surface Relief + Show 8 more

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Abstract

The technology challenges for miniature optical pickups include high-numerical-aperture objective lens design, servo actuator functions and performance, and component assembly tolerance. In this paper, a microelectromechanical systems (MEMS)-based miniature optical pickup is proposed for DVD and blue disk systems. A high-order diffractive objective lens with a continuous surface relief is designed. Focus, tilt, and tracking servos are implanted with MEMS micro actuators. Preliminary design and test results are presented.

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