SMALL OPTICAL FLYING HEAD TECHNOLOGIES INTERFACED WITH PLASTIC DISKS

摘要

In the optical drive system adopting optical flying-type head (OFH), flying stability of small OFH interfaced with a removable plastic disk is investigated as basic functions of reliable optical pickup head for first surface recording. Additional micro actuators for focus servo are studied for better interface of OFH on the thin cover layered plastic disk to eliminate focus error due to the non-uniformity in cover layer thickness and the tolerance of lens assembly.