Loudspeaker with waveguide
AssigneeBose Corporation
InventorGreg Joseph Zastoupil
Life of this patent
Estimating the term…
Abstract
Various implementations include loudspeakers. In some particular cases, a loudspeaker includes: a diaphragm; a basket; an electro-magnetic motor supported by the basket and coupled to the diaphragm for driving motion of the diaphragm relative to the basket along a motion axis; a surround coupling an outer peripheral edge of the diaphragm to the basket; and a waveguide coupled to the basket and surrounding the diaphragm. The waveguide has an arcuate inner surface that is complementary with an arcuate outer surface of the diaphragm and extends along a portion of the arcuate outer surface of the diaphragm.
Claims21
A loudspeaker comprising:
- a diaphragm;
- a basket;
- an electro-magnetic motor supported by the basket and coupled to the diaphragm for driving motion of the diaphragm relative to the basket along a motion axis;
- a surround coupling an outer peripheral edge of the diaphragm to the basket;
- and
- a waveguide coupled to the basket and surrounding the diaphragm, wherein the waveguide has an arcuate inner surface that is complementary with an arcuate outer surface of the diaphragm and extends along a portion of the arcuate outer surface of the diaphragm,
- wherein the arcuate inner surface of the waveguide extends along approximately 5 percent to approximately 40 percent of the outer surface of the diaphragm.
A high frequency (HF) driver comprising:
- a diaphragm;
- a basket;
- a surround coupling an outer peripheral edge of the diaphragm to the basket and protruding from an outer surface of the basket;
- and
- a waveguide coupled with the basket and surrounding the diaphragm, wherein the waveguide comprises:
- an arcuate inner surface that is complementary with an arcuate outer surface of the diaphragm and overlies a portion of the arcuate outer surface of the diaphragm, such that the outer peripheral edge of the diaphragm is visually obstructed by the waveguide from a front of the loudspeaker,
- wherein a core of the waveguide overhangs the surround, the core having a height as measured from the outer surface of the basket in a direction parallel with the motion axis that is equal to approximately 35 percent to approximately 85 percent of a height of the diaphragm as measured from the outer surface of the basket in the axial direction.
(canceled)
17-20. (canceled)
A loudspeaker comprising:
- a diaphragm;
- a basket;
- an electro-magnetic motor supported by the basket and coupled to the diaphragm for driving motion of the diaphragm relative to the basket along a motion axis;
- a surround coupling an outer peripheral edge of the diaphragm to the basket;
- and
- a waveguide coupled to the basket and surrounding the diaphragm, wherein the waveguide has an arcuate inner surface that is complementary with an arcuate outer surface of the diaphragm and extends along a portion of the arcuate outer surface of the diaphragm, wherein the loudspeaker comprises a gap between the surround and a core of the waveguide.
Dependencies are inferred from the claim text.