Patent ID: 8418802

Claim:
An assembly for improving directivity performance of a speaker assembly comprising: a speaker assembly having a dustcap coupled to a diaphragm; and an acoustic lens coupled to the speaker assembly and configured to cover the dustcap and the diaphragm, the acoustic lens comprising: a first surface and a second surface that unite to form an edge to define a perimeter; an effective aperture through the first and second surfaces comprising a plurality of perforations, the effective aperture comprises a dome surface having an apex and a dome base, the dome surface being convex relative to the dustcap; a substantially conical segment that lies between the dome base and the perimeter, where the conical segment is angled from the perimeter to the dome base toward the speaker assembly; and a mounting feature between the conical segment and the perimeter, the mounting feature mated with the speaker assembly to form a substantially air tight seal between the speaker assembly and the acoustic lens.