Ribbon loudspeaker

Details Ribbon loudspeaker Ribbon loudspeaker

1985-09-23

1991-06-04

Rubinson, Gene Z.

Electricity: conductors and insulators

Feedthrough or bushing

Compression

1791155PV, 1791155VC, 179181R, 174126CP, H04R 704, H04R 902

Patent

active

050216139

ABSTRACT:
A ribbon loudspeaker is provided by a first set of three rows of parallel spaced apart magnets disposed on a first plate, a second set of three rows of parallel spaced apart magnets disposed on a second plate, a diaphragm having a U-shaped electric current conductor disposed on one face thereof and means for clamping the diaphragm in a spaced apart and aligned relationship with both said sets of rows of magnets. The conductor is comprised of thin layers of metal of different compositions, preferably formed on the diaphragm by a vapor deposition process to provide a low mass. The base layer is of a metal that will bond with the diaphragm, while the middle layer serves as the main conductor and the surface layer prevents oxidation.

REFERENCES:
patent: 3922504 (1975-11-01), Kishikawa
patent: 4037061 (1977-07-01), von Recklinghausen
patent: 4156801 (1979-05-01), Whelan
patent: 4264789 (1981-04-01), Kaizu
patent: 4468530 (1984-04-01), Torgeson
IEEE Transactions on Parts, Hybrid and Packaging vol. PHP-No. 4, pp. 253-262, Dec. 1975.
"Flat Voice Coils Make Flatter Speakers", Aisberg et al, Radio-Electronics, Jan. 1962, pp. 63-66.

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