| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker that can realize increase in the sound pressure of a high output and can be thinned. SOLUTION: The speaker comprises first and second magnets 11, 13 arranged in a slanting direction or in a substantially horizontal direction via a magnetic gap 17; a voice coil body 16 arranged movably in the magnetic gap 17; a diaphragm 15 coupled to the voice coil body 16; and a center pole 19 having a T-shaped section provided at the center of a lower plate 18. The first magnet 11 is provided on a lower surface on an outer-periphery edge 20 of the center pole having the T-shaped section, and the second magnet 13 is provided on the upper surface of the lower plate 18, at a position which is farther out than that of the first magnet 11. COPYRIGHT: (C)2009,JPO&INPIT
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