Acoustic systems for lighting in suspended ceilings
AssigneeSpirit Acoustics Inc.
InventorsHerbert J. Morgan, III, Mark A. Adkins
Life of this patent
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Abstract
An acoustic housing, a light fixture, a suspended ceiling system, and a method of decreasing sound transfer from a light fixture in a suspended ceiling are disclosed. An acoustic hood for a light fixture in a suspended ceiling may include a partially enclosed space formed between a plurality of wall portions. A light fixture may include first and second layers that are coupled to one another and form a partially enclosed space. A suspended ceiling system may include the acoustic hood or light fixture. The method relates to disposing an acoustic housing spaced from the light fixture.
Claims14
An acoustic hood for an underlying recessed light fixture in a suspended ceiling, the acoustic hood comprising:
- a plurality of rigid portions of sound-absorbing material that together form a partially enclosed space, with the rigid portions including a top portion, and the rigid portions further including a plurality of side portions that together form a lower edge defining a perimeter of an opening in the acoustic hood, the plurality of side portions each disposed at an angle between about 65° and about 80° with respect to the top portion;
- at least one positioning slot disposed in at least one of the rigid portions proximate the lower edge;
- and
- at least one ventilation opening disposed in at least one of the rigid portions.
An acoustic hood for an underlying recessed light fixture in a suspended ceiling, the acoustic hood comprising:
- a plurality of rigid portions of sound-absorbing material that together form a partially enclosed space, with the rigid portions including a top portion, and the rigid portions further including a plurality of side portions that together form a lower edge defining a generally rectangular perimeter of an opening in the acoustic hood, the plurality of side portions each disposed at an angle between about 65° and about 80° with respect to the top portion;
- wherein the rigid portions have a thickness between about 0.5 inch and about 1.5 inches;
- wherein the rigid portions together provide a noise reduction coefficient of at least 0.7 and a sound transmission class of at least about 20.
Dependencies are inferred from the claim text.