| 摘要 |
PROBLEM TO BE SOLVED: To provide a headphone with a high efficiency that can provide ease of listening and a natural listening sense for various sound sources and can switch between an air conduction sound and a bone conduction sound in response to a state. SOLUTION: The headphone, provided with a piezoelectric vibrator plate body 11 comprising compound between a flexible substance and a piezoelectric bimorph or a piezoelectric unimorph, includes a position selection mechanism for selectively fixing the piezoelectric vibrator plate body 11 around a front side of an external auditory meatus or around a cheekbone in front of an auricle 12. Further, the position selection mechanism uses a support part slid along guide grooves or rails and locked by a stopper to support the piezoelectric vibrator plate body 11. A support part turned around a shaft and locked by a stopper may support the piezoelectric vibrator plate body 11, and the front and rear sides of the piezoelectric vibrator plate body 11 is turned around by a suport frame provided on the piezoelectric vibrator, that is, by a rotary mechanism and a spring mechanism, and a contact point may be changed to an entrance of the external auditory meatus and the cheekbone. COPYRIGHT: (C)2006,JPO&NCIPI
|
