US 11,869,474 B2
Sound absorbing light fixture
Michael Evan Simla, Lachine (CA); and Timothy Ernest Gulsrud, Longmont, CO (US)
Assigned to LUMENWERX ULC.
Filed by LUMENWERX ULC, Saint-Laurent (CA)
Filed on Feb. 10, 2021, as Appl. No. 17/172,751.
Claims priority of provisional application 62/972,260, filed on Feb. 10, 2020.
Prior Publication US 2021/0248988 A1, Aug. 12, 2021
Int. Cl. G10K 11/172 (2006.01); F21S 8/04 (2006.01); G10K 11/162 (2006.01); F21Y 115/10 (2016.01)
CPC G10K 11/172 (2013.01) [F21S 8/043 (2013.01); G10K 11/162 (2013.01); F21Y 2115/10 (2016.08)] 19 Claims
OG exemplary drawing
 
1. A sound absorbing light fixture comprising:
a frame at least partially delimiting a sound dampening cavity,
a light emitting element extending along at least a first side of the frame,
a sound absorbing core disposed within the sound dampening cavity and at least partially defining a sound dampening air gap within the sound absorbing light fixture, and
at least one perforated panel affixed to at least one of the frame and the sound absorbing core, the at least one perforated panel comprising a plurality of resonance generating perforations and being configured to conceal at least a portion of the sound absorbing core,
wherein a cross-sectional shape and a depth of the resonance generating perforations is selected such as to create an acoustical resonance condition within the sound dampening cavity.