Acoustics – Sound-modifying means – Lens
Reexamination Certificate
2008-01-08
2008-01-08
Donovan, Lincoln (Department: 2837)
Acoustics
Sound-modifying means
Lens
C381S356000, C381S357000, C381S431000, C381S396000, C381S191000, C381S391000
Reexamination Certificate
active
10768283
ABSTRACT:
A loudspeaker includes a frame, a magnet coupled to the frame and a diaphragm secured to the frame. An acoustic lens may be positioned in front of the diaphragm. An aperture extends through the acoustic lens. The acoustical directivity pattern of the loudspeaker may be modified by the acoustic lens to improve the uniformity of the off axis vs. on axis sound pressure level.
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Hutt Steven W
Keele, Jr. D. B
Steere John F
Donovan Lincoln
Harman International Industries Incorporated
Luks Jeremy
Pauley Petersen & Erickson
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