| 摘要 |
<p>The present invention is a waveguide for an acoustic speaker having a predetermined cone weight. The waveguide body has a speaker end and an open end and an even number of segments with a flat surface in a plane parallel to the speaker end. The segments have inside wall surfaces which flare increasingly outwardly from the speaker, and these inside wall surfaces have a speaker end length, L1, determined by the following formulas, L1 minimum = 0.7 x ws/0.0012g/cm<3> x 1/ASE, and L1 maximum = 1.2 x ws/0.0012g/cm<3> x 1/ASE, wherein L1 is a straight line length of the lower portion of the segment wall surface, ws is the weight of a speaker cone in grams/cm<3>, and ASE is the cross-sectional area of the speaker end in square centimeters. Each of the segment inside wall surfaces has an outer end length L2 which has a predetermined length related to L1. There is an angle between the straight line length of the lower portion of the segment wall surface and a center line running down the center of the length of the waveguide, referred to as ANGLE A, which is no greater than 15 DEG . <IMAGE></p> |
