Planar type electro-acoustic transducer and process for manufact

Details Planar type electro-acoustic transducer and process for manufact Planar type electro-acoustic transducer and process for manufact

1981-03-03

1984-09-18

Fuller, Benjamin R.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

1791155ES, 1791155PC, 1791155VC, 179181R, 181163, 181171, H04R 904

Patent

active

044726040

ABSTRACT:
A planar type electro-acoustic transducer having a disk-like inner diaphragm member to the top end inner side of a voice coil bobbin, and having an annular outer diaphragm member concentric with said inner diaphragm member and conjugated to the top end outer side of the voice coil bobbin, in such way that these two diaphragm members jointly constitute a single planar type diaphragm. This arrangement increases the conjugation strength of the diaphragm members to the voice coil bobbin and also enables a new manufacturing process for the transducer in which the diaphragm and the coil bobbin are easily centered.

REFERENCES:
patent: 2864155 (1958-12-01), Willson
patent: 4322583 (1982-03-01), Maeda

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