Patent ID: 7142687
Filing Date: 2006-11-28
Classification: H04R

Abstract:
1. An electroacoustic transducer, comprising: one or a plurality of magnet plates, an entirety of which are formed like a disk or a ring, and each of the magnet plates having a plurality of partial areas each magnetized in a magnetizing direction; and an acoustic diaphragm disposed parallel to said magnet plates and having a conductor formed on a surface of the acoustic diaphragm and configured to vibrate in a vibration plane of the acoustic diaphragm; wherein the magnetizing direction of each of the plurality of partial areas has a component of the magnetizing direction oriented in a direction parallel to a center axis or a radius direction of said magnet plates, and angles formed by said magnetizing directions of the plurality of partial areas with respect to the vibration plane of said acoustic diaphragm gradually differ from each other in accordance with a distance from the center axis of said magnet plates.