Loudspeaker acoustic waveguide
AssigneeHarman International Industries, Incorporated
InventorsJacques Spillmann, Steven Patrick Riemersma, Mark Thomas DeLay
Life of this patent
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Abstract
Examples are disclosed for a waveguide for a loudspeaker, the waveguide including a first and second outer shell coupled to one another, and a first and second inner shell coupled to one another and positioned within an air gap between the first and second outer shells, a plurality of sound paths being formed between an exterior surface of the first inner shell and an interior surface of the first outer shell and between an exterior surface of the second inner shell and an interior surface of the second outer shell, each of the plurality of sound paths having an equal path length in a plurality of planes.
Claims15
A waveguide for a loudspeaker, the waveguide comprising:
- an outer shell;
- and
- an inner shell coupled to the outer shell, a first end of the inner shell and a first end of the outer shell forming a first continuous annular ring defining a periphery of an inlet opening to an air gap between an interior surface of the outer shell and an exterior surface of the inner shell, a second, opposite end of the inner shell and a second, opposite end of the outer shell forming a second continuous ring defining a periphery of an outlet opening of the air gap, wherein the first continuous annular ring is only interrupted at a top region and a bottom region, each of a plurality of three-dimensional paths between virtual points at the inlet opening of the air gap and virtual points at the outlet opening of the air gap having a substantially equal path length.
A loudspeaker comprising:
- a driver unit;
- and
- a waveguide coupled to the driver unit, the waveguide comprising an outer shell and an inner shell coupled to the outer shell, a first end of the inner shell and a first end of the outer shell forming a first continuous ring defining a periphery of an inlet opening to an air gap between an interior surface of the outer shell and an exterior surface of the inner shell, a second, opposite end of the inner shell and a second, opposite end of the outer shell forming a second continuous ring defining a periphery of an outlet opening of the air gap, wherein the first continuous ring is only interrupted at a top region and a bottom region.
Dependencies are inferred from the claim text.