Patent ID: 11869474
Assignee: LUMENWERX ULC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  F | IPC F  G

Claim 4:
5. The sound absorbing light fixture as claimed in claim 1, wherein the cross-sectional shape and the depth of the resonance generating perforations is selected using the following equation:, Fv
  =
  
    
      CD
      4
    
    ⁢
    
      
        1
        
          π
          ⁢
          
            
          
          ⁢
          
            V
            ⁡
            
              (
              
                L
                +
                
                  0.75
                  ⁢
                  
                    
                  
                  ⁢
                  D
                
              
              ), wherein Fv is the preferred resonant frequency of operation, V is the volume of the sound dampening cavity, D is the diameter of one of the resonance generating perforations, L is the depth of one of the resonance generating perforations and C is the speed of sound.