Optical pick-up actuator and method for assembling an optical pick-up actuator
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United States of America Patent
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app pub date -
Jun 16, 2004
filing date -
Apr 11, 2002
priority date (Note) -
Abandoned
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Abstract
The method of assembling a pick-up actuator includes assembling a lens holder assembly to a base unit creating a magnetic gap between complementary electromagnetic 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 electromagnetic drive system, and a volatile magnetic fluid or a low viscosity oil-based magnetic fluid.
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