Patent ID: 11962971
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. An acoustic lens that is attached to a loudspeaker, the acoustic lens comprising:
a plurality of fins each having one end portion located on a curved line that extends as convexly curved along a predetermined direction on a side opposite to the loudspeaker when the acoustic lens is viewed from a lateral side, the plurality of fins being arranged in the predetermined direction, wherein:
when the acoustic lens is viewed from the lateral side, an elevation angle of the curved line relative to each of the plurality of fins gradually increases from one side to an other side in the predetermined direction, and
the plurality of fins each define a notch at an other end portion opposite to the curved line, the notch having a wedge shape.