H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/70
H04R 1/00 (2006.01) H04R 9/02 (2006.01) H04R 9/04 (2006.01)
Patent
CA 1180101
PHN 9628 10 ABSTRACT An electroacoustic transducer comprising a diaphragm provided with conductors and magnetic zones at both sides of the diaphragm for producing an energizing field at the location of the conductors. At the boundary areas of the magnetic zones auxiliary fields are produced in order to reduce stray fields at the location of the boundary areas. This results in a better concentration of the energizing magnetic field in the plane of the dia- phragm, so that a stronger magnetic field is obtained at the location of the conductors.
364554
Kopinga Wiert
Mimmel Herbert
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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