Electro-optical device

Details Electro-optical device Electro-optical device

1989-01-27

1991-06-18

McElheny, Jr., Donald

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4432, G11B 700

Patent

active

050254332

ABSTRACT:
Device for reading an optical disc (5) includes a turntable (17) which is rotatable about an axis of rotation (19), and a slide (11) supported directly in the frame and which carries an objective (9) having an optical axis (9a). A slide-supporting arrangement is constructed in such a way that it allows both the displacement of the slide in a radial direction and a pivotal movement of the slide about a pivotal axis (13) which is stationary relative to the frame. A slide-drive arrangement (31, 33) radially moves the objective, and a drive unit (25, 27) with a control element (29) tilts the slide.

REFERENCES:
patent: 4637004 (1987-01-01), Araki et al.
patent: 4694442 (1987-09-01), Gijzen et al.

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