Internal lens system for loudspeaker waveguides
AssigneeHarman International Industries, Incorporated
InventorJames S. Brawley JR.
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Abstract
This invention provides a lens system for a loudspeaker. The loudspeaker may include a driver unit and a waveguide attached to the driver unit. The loudspeaker further may include a lens system. The lens system may include a plurality of plates. The plates may be positioned to divide an interior of the waveguide into a plurality of acoustic paths of substantially equal length. The acoustic paths may bend the propagation of one or more acoustic elements of a sound wave so that each acoustic element arrives at a plane substantially at the same time.
Claims46
A loudspeaker, comprising:
- a driver unit;
- a waveguide attached to the driver unit;
- and
- a lens system having a plurality of plates, where the plurality of plates are positioned to divide an interior of the waveguide into a plurality of acoustic paths of substantially equal length.
A loudspeaker, comprising:
- means for producing a sound wave;
- means for guiding the sound wave, where the means for guiding the sound wave includes an interior;
- and
- means for dividing the interior into a plurality of acoustic paths of substantially equal length.
A line-source loudspeaker array, comprising:
- a plurality of loudspeaker systems connected to each other where at least two loudspeaker systems each having a lens system, where each lens system includes a plurality of plates that are positioned to divide an interior of a waveguide into a plurality of acoustic paths of substantially equal length, and where the plurality of plates extend from the slot at different lengths.
Dependencies are inferred from the claim text.