Optical component-driving device for optical pickup

Details Optical component-driving device for optical pickup Optical component-driving device for optical pickup

1989-07-03

1991-08-27

Shoop, Jr., William M.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369 4422, 369 13, 360104, 359824, G02B 702

Patent

active

050439723

ABSTRACT:
An optical component-driving device for driving an optical component along a tracking axis and/or a focusing axis includes a magnet, a yoke and a coil. The coil is fixed to a moveable member which houses the optical component to be moved. The coil is disposed in spaced, opposed relation to two opposite polarity surfaces arranged adjacent and planar to one another and disposed in the direction of tracking and/or focusing. The first polarity surface is provided by the facing surface of a polarized magnet. The second polarity surface is provided by one end face of a yoke, the other end face of which abuts the opposite polarity backing surface of the magnet.

REFERENCES:
patent: 4643522 (1987-02-01), Takashima
patent: 4750164 (1988-06-01), Nose
patent: 4752117 (1988-06-01), Ichikawa et al.
patent: 4842392 (1989-06-01), Nakamura et al.
patent: 4861138 (1989-08-01), Suzuki
patent: 4942562 (1990-07-01), Suzuki

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