Coil drive for pivotable mounted optical scanner

Details Coil drive for pivotable mounted optical scanner Coil drive for pivotable mounted optical scanner

1988-10-19

1992-05-26

Fuller, Benjamin R.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369219, 369222, G11B 1730

Patent

active

051174138

ABSTRACT:
In order to pivot a pivotal arm (60) carrying an optical scanner (5), use is made of at least one coil (13) and at least one permanent magnet (16, 17), the coil being arranged on the pivotal arm or on a frame supporting the arm and the permanent magnet being arranged on the frame or on the arm. The coil (13) has a substantially straight active coil section (14) which is arranged near the pivotal axis (8) about which the pivotal arm is pivotable and which extends transversely of the longitudinal axis of the pivotal arm. The ends of this coil section are interconnected by a further coil section (15) which is, for example, concentric with the pivotal spindle and which extends at that side of the pivotal axis which is remote from the scanning unit.

REFERENCES:
patent: 4150407 (1979-04-01), Dijkstra
patent: 4382293 (1983-05-01), Tajima et al.
patent: 4403316 (1983-09-01), Van de Veerdonk
patent: 4408311 (1983-10-01), Suzuki et al.
patent: 4481550 (1984-11-01), Miller et al.
patent: 4686595 (1987-08-01), Bryer
patent: 4794586 (1988-12-01), Korth

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