Acoustic Lens

thingiverse

This acoustic lens is designed for placement in front of a midrange or tweeter speaker driver, spreading sound more evenly throughout the room while eliminating on-axis beaming effects. By reshaping the planar wavefront into a spherical one, this innovative design makes sound distribution more efficient and effective. A detailed explanation can be found in my published paper: http://www.aes.org/e-lib/browse.cfm?elib=19881. Both round and square flange versions of this lens are available for download, allowing users to scale and drill holes as needed to fit their specific driver requirements. These designs were specifically created for the Beyma 10" 10MCF400Nd midrange driver and the Beyma TPL-150-H tweeter. Printing these lenses can be a challenge, as it took my Lulzbot printer nearly two weeks to complete one lens. For optimal results, I recommend using low-warp ABS plastic, which worked better for me. Slic3r processing times can be lengthy when working with STL files, but Simplify3D offers a faster alternative. Users can view the STL file using FreeCAD, while the algorithm used to create the STL file is detailed in my published paper.