发明名称 OPTICAL PICK-UP ACTUATOR AND METHOD FOR ASSEMBLING AN OPTICAL PICK-UP ACTUATOR
摘要 The method of assembling a pick-up actuator includes assembling a lens holder assembly to a base unit creating a magnetic gap between complementary electro-magnetic components of the lens holder assembly and the base unit, disposing a quantity of a volatile magnetic fluid or a low viscosity oil-based magnetic fluid into the magnetic gap created between complementary electro-magnetic components of a lens holder assembly and a base unit, fixing resilient support members between the lens holder assembly and the base unit. The optical pick-up actuator includes a lens holder assembly, a base unit, resilient support members connecting the lens holder assembly and the base unit, an electro-magnetic drive system, and a volatile magnetic fluid or a low viscosity oil-based magnetic fluid.
申请公布号 WO2004112012(A2) 申请公布日期 2004.12.23
申请号 WO2004IB01980 申请日期 2004.06.15
申请人 FERROTEC CORPORATION;TSUDA, SHIRO 发明人 TSUDA, SHIRO
分类号 G11B7/08;H01F1/44;H01F3/14 主分类号 G11B7/08
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