Ribbon loudspeaker achieves focusing and uniformity of the magne

Details Ribbon loudspeaker achieves focusing and uniformity of the magne Ribbon loudspeaker achieves focusing and uniformity of the magne

1976-01-05

1977-09-20

Stellar, George G.

H04R 902

Patent

active

040499260

ABSTRACT:
A ribbon loudspeaker, according to the invention, comprises permanent magnets spaced from each other along an axis and making up a magnetic system, and sound-reproducing ribbons freely vibrating, independent of each other placed in a working gap between the poles of permanent magnets. The side surfaces of the permanent magnets are made convex and spaced from the axis, whereas their pole surfaces are made concave and spaced along the axis. The permanent magnets are magnetized by way of separate magnetization of their central parts in the plane of a sound-reproducing ribbon and portions adjoining their side surfaces. The proposed ribbon loudspeaker ensures higher fidelity of sound.

REFERENCES:
patent: 2476396 (1949-07-01), Anderson
patent: 2673251 (1954-03-01), Duncan
patent: 3383476 (1968-05-01), Morgan

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