Optical pickup with bilateral and vertical symmetry

Details Optical pickup with bilateral and vertical symmetry Optical pickup with bilateral and vertical symmetry

1990-01-30

1992-11-17

Psitos, Aristotelis

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

359813, G11B 700

Patent

active

051650886

ABSTRACT:
A pair of driving coils each having a focusing coil and a driving coil are arranged such that the focusing coils, and the tracking coils, of each of the driving coils are attached on opposite side surfaces of an optical-parts holder in a manner so that the focusing coils, and tracking coils, are symmetrically disposed both bilaterally and vertically with respect to the center of gravity of the optical-parts holder.

REFERENCES:
patent: 4613202 (1986-09-01), Kuriyama
patent: 4766583 (1988-08-01), Oinoue et al.
patent: 4766584 (1988-08-01), Sekimoto et al.
patent: 4792935 (1988-12-01), Kime et al.
patent: 4998802 (1991-03-01), Kasuga et al.

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