Optical Head Lens Actuator for High Information Bit Rate Recording (Special Issue on Recent Electromechanical Devices)

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概要

• 論文の詳細を見る

• A magneto-optical head lens actuator was developed for use at a high information bit rate and high density recording. A high bit rate at the outer diameter of a 300 mm disk (velocity=27.3m/s) was attained by mounting an aspherical plastic lens and optimizing the shape of lens holder for achieving higher spurious frequency over 30kHz, utilizing the finite element method (FEM). Another approach was focused on reducing gain peak at the natural frequency by adopting "multi-wire" and a silicone "gel box" damping system for stabilizing the pull-in characteristic for focusing and tracking. By the actuator realization, a high density recording of 0.34 μm/bit and high information bit rate 80 Mbps (1, 7 code modulation) recording were attained.

• 社団法人電子情報通信学会の論文
• 1994-10-25

著者

• Matsui Tsutomu

  The Video Technology Development Center Nec Corporation

関連論文

• Optical Head Lens Actuator for High Information Bit Rate Recording (Special Issue on Recent Electromechanical Devices)

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