Acoustic lens and acoustic diffuser comprising said acoustic lens

摘要

This is an acoustic lens (10; 10'; 110; 210; 310; 410; 510) for the refraction of acoustic waves generated by an acoustic source (70; 72; 170; 270; 371; 470; 471; 570). In addition, it is a diffuser comprising an acoustic lens (10; 10'; 110; 210; 310; 410; 510).