| 摘要 |
PROBLEM TO BE SOLVED: To provide a headphone for reproducing deep bass by eliminating modeling of a dynamic speaker since all users are not fully satisfied with a conventional audio headphone concerning the deep bass, and allowing a movable coil to have a plate shape and to be stuck onto one corn. SOLUTION: A double mechanism system to allow a cylindrical movable coil to play the role of a vibration source and to allow a corn to play the role of a sound source is not adopted in the deep bass headphone, where the movable coil 9 is made to have the plate shape and stuck onto one corn and the edge of the corn is fixed so as to allow the surface of a plate movable coil to be positioned about 0.5 mm from the upper surface of a plate magnet 10. By the obtained structure, the vibration area of the corn is made to be larger than the conventional one. Besides, the deep bass is more easily reproduced since the movable coil is the vibration source simultaneously with the sound source. When the present invention is actually used, the deep bass is excellently reproduced as expected, but, efficiency is deteriorated a little compared with the conventional one since no cores are used. COPYRIGHT: (C)2007,JPO&INPIT
|
