Object lens head assembly

Details Object lens head assembly Object lens head assembly

1989-06-01

1991-06-25

Shoop, Jr., William M.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369215, 369 32, G11B 1730

Patent

active

050273400

ABSTRACT:
An object lens head assembly for use with an optical recording disc comprises an information conversion apparatus for receiving an electrical signal bearing information to be written to the disc and outputting beams of light bearing the information to be written to the disc, and for receiving a beam of light bearing information read from the disc and outputting an electrical signal bearing the information read from the disc; a plurality of object lenses disposed along a diametrical direction of the disc for directing light onto a plurality of portions of the disc, respectively; a plurality of reflective mirrors for reflecting the light beam output from the information conversion apparatus toward a selected one of the object lenses; a linear motor for moving the object lenses along the diametrical direction of the disc; and a light beam shifting mechanism for shifting the light beam so that the light beam impinges upon a selected one of the reflective mirrors.

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