| 摘要 |
PURPOSE:To obtain a complete nondirectional characteristic with an additional installation of a simple member by providing a reflector in the vicinity of opening of a horn speaker set in the vertical direction. CONSTITUTION:A horn speaker 1 is set in the vertical direction, and a reflector 3 is installed in the vicinity of an opening 2. The reflector 3 is fixed to the horn speaker 1 by a support bar 5 so that a sound 4 outputted from the horn speaker 1 can be transmitted parabolically and uniformly in the horizontal direction. In this way, a complete nondirectional characteristic can be obtained only by adding a simple member. |
