Title: Optimising the performance of optical data storage drives based on a novel seesaw-swivel actuator for a holographic module
Authors: Lin, Yu-Cheng
Chou, Po-Chien
Hou, Kuan-Chou
Cheng, Stone
Chiou, Jin-Chern
Shih, Hsi-Fu
Department of Mechanical Engineering
Institute of Electrical and Control Engineering
Issue Date: 1-Jul-2011
Abstract: This Letter presents an optical module with a holographic optical element (HOE) for the small-form-factor pickup head. The proposed module is mounted on a novel seesaw swivel-drive mechanism with unique features, including a rotary actuator for track-following; in addition, a seesaw arm nutates along a pivot for laser focusing. Additionally, the actuating force is increased within the limit of actuator size constraints by using a Halbach-magnet-array in biaxial voice coil motors. Experimental assessment of the holographic module and actuator reveals that the HOE module ensures the optical performance and stability of the system, together with a performance superior to a classic hinge-type swing arm actuator, as attributed to enhanced durability and higher robustness.
URI: http://dx.doi.org/10.1049/mnl.2011.0135
ISSN: 1750-0443
DOI: 10.1049/mnl.2011.0135
Volume: 6
Issue: 7
Begin Page: 571
End Page: 574
Appears in Collections:Articles

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