Thin panel loudspeakers
AssigneeCorning Incorporated
InventorsDmitri Vladislavovich Kuksenkov, David Ralph Maack, Zhiqiang Shi
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Abstract
Disclosed herein are speaker assemblies and acoustic devices comprising a panel having a long side and a short side, at least one transducer configured to excite the panel at a plurality of excitation locations on the panel to generate a wave having a wave front substantially perpendicular to the long side and propagating toward the short side of the panel and, optionally, at least one attenuating component mounted to the panel. Methods for generating an acoustic sound are also disclosed herein.
Claims20
A speaker assembly comprising:
- a panel having a long side and opposing first and second short sides;
- at least one first transducer configured to excite the panel at first excitation locations on the panel to generate a first wave having a wave front substantially perpendicular to the long side and propagating toward the first short side;
- and
- a first layer of an acoustic absorbing material mounted on a first major surface of the panel and configured to attenuate wave energy by applying an increasing amount of mechanical impedance to the panel in a propagation direction of the wave,
- wherein the first layer of acoustic absorbing material comprises a first serrated edge disposed on the first major surface of the panel and facing the first excitation locations.
A method of generating an acoustic sound, comprising:
- exciting a panel of at a plurality of excitation locations using one or more transducers to generate a wave having a wave front substantially perpendicular to a long side of the panel and propagating toward a short side of the panel;
- and
- attenuating wave energy by applying an increasing amount of mechanical impedance to the panel in a propagation direction of the wave, using a first layer of an acoustic absorbing material comprising a serrated edge disposed on a first major surface of the panel and facing the plurality of excitation locations.
Dependencies are inferred from the claim text.