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JPS59125197

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DESCRIPTION JPS59125197
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a cross-sectional view of an essential part of a conventional flat loudspeaker, FIG. 2 is a
cross-sectional view of an essential part of one embodiment of the present invention, and FIGS.
And FIG. 4 is an explanatory view for explaining the sound pressure frequency characteristics of
the conventional flat speaker, and FIG. 5 is a sound pressure frequency characteristic diagram of
one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... disk-shaped
diaphragm, 2 ... edge, 4 ... voice coil bobbin, 5 ... voice coil, 6 ... truncated cone.
12-05-2019
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