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|標題:||Optimising the performance of optical data storage drives based on a novel seesaw-swivel actuator for a holographic module||作者:||Lin, Y.C.
|關鍵字:||voice coil motor;disk-drive;design;head||Project:||Micro & Nano Letters||期刊/報告no：:||Micro & Nano Letters, Volume 6, Issue 7, Page(s) 571-574.||摘要:||
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.
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