Alright, just to be sure, can the same laws of refraction in lenses be applied to acoustic waves?
For example, can I represent acoustic waves using "rays" as you would with light for the purpose of the design of the lens?
awesome thanks guys, there's been some good inputs here. Will research parametric arrays for now. But I still like the idea of a lens. It seems they usually use some sort of plastic, like TPX plastic.
Yes, I did look into that, but it seems that would be a very expensive route to follow. I was hoping I could make use of what I already had. Thus I thought of using a lens of sorts.
I am currently busy with a project on sonar for an autonomous underwater vehicle, and am in a situation where some sort of acoustic lens would be a great help.
The sonar transducers I have emit a conical beam shape with a beam angle of about 6-7 degrees. I want to reduce that to about 1-2...