Devialet

Julien Laurent Bergere

Pierre-Emmanuel Calmel

Emmanuel David Nardin

Antoine Petroff

Jean-Loup Afresne

Pierre-Emmnanuel Calmel

Loudspeaker enclosure comprising at least one loudspeaker having a convex mobile membrane, and a member surrounding the mobile membrane and comprising an external surface bounded by an internal edge (&#x393;') situated facing the mobile membrane, which comprises a peripheral edge (&#x393;) situated facing the internal edge of the member and forming a closed loop. The mobile membrane and the member have a suitable shape such that, over a continuous portion (&#x393;&#x2033;) of the peripheral edge (&#x393;) representing at least 25% of the length of the peripheral edge, for any first point (M) on the continuous portion and any second point (M&#x2032;) situated on the internal edge at a location such that the distance between the first point (M) and second point (M&#x2032;) is minimal, the mobile membrane has, at the first point, a first tangent plane, essentially coincident with a second tangent plane at the second point.

Growing community of inventors

Versailles, France

Julien Laurent Bergere