Pickup assembly for disc player
Optical device for controlling a light beam
Apparatus for driving objective lens
Objective lens assembly for optical disc player
Objective lens drive device with tracking error correction with flux of opposite direction Patent #: 4507764
ApplicationNo. 06/635607 filed on 07/30/1984
US Classes:359/824, Electromagnetic or piezoelectric drive369/44.15, Elastic, flexible, pliant or spring support of lens or mirror369/44.21Lens or mirror pivots off center (e.g., on a shaft, etc.)
ExaminersPrimary: Corbin, John K.
Assistant: Ben, Loha
Attorney, Agent or Firm
International ClassG11B 7/09 (20060101)
AbstractAn optical pickup has a driving unit for driving a driven member which has an objective lens. The driving unit has an open loop arrangement of a pair of magnets, the same poles of which oppose each other.