Title: Miniaturized suspension structure for precise flying height positioning measurement using a swing arm actuator with a holographic optical element module sensor
Authors: Chou, Po-Chien
Lin, Yu-Cheng
Cheng, Stone
Department of Mechanical Engineering
Keywords: swing arm actuator;HOE module sensor;small-form-factor;focus error signal
Issue Date: 1-Mar-2011
Abstract: This work presents a means of active actuation of the suspension structure with a holographic optical element (HOE) for the small-form-factor optical-disk drives. The proposed HOE module sensor is mounted on a swing arm swivel-drive mechanism with unique features, including a rotary actuator for tracking and a swing arm nutates along a pivot for focusing. The fabrication methodology for a cantilever-beam-like structure with HOE module sensor is investigated. Furthermore, the performances of optical module with swing arm-swivel actuation are experimentally evaluated to demonstrate the effectiveness of precise flying height positioning measurement method. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3549259]
URI: http://dx.doi.org/10.1117/1.3549259
ISSN: 0091-3286
DOI: 10.1117/1.3549259
Volume: 50
Issue: 3
End Page: 
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