US 12,323,752 B2
Audio speaker dust cap illumination
Henrik Kirkeby Jepsen, Vinderup (DK); Marcel Pilgaard Havemann, Hjerm (DK); and Henrik Muusmann Jørgensen, Struer (DK)
Assigned to Harman International Industries, Incorporated, Stamford, CT (US)
Filed by HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED, Stamford, CT (US)
Filed on Nov. 30, 2023, as Appl. No. 18/525,651.
Claims priority of application No. 222108060 (EP), filed on Dec. 1, 2022.
Prior Publication US 2024/0187769 A1, Jun. 6, 2024
Int. Cl. H04R 1/02 (2006.01); F21S 10/00 (2006.01); F21S 10/02 (2006.01); F21V 14/08 (2006.01); F21V 29/10 (2015.01); F21V 33/00 (2006.01); H04R 9/04 (2006.01)
CPC H04R 1/028 (2013.01) [F21S 10/005 (2013.01); F21S 10/023 (2013.01); F21V 14/08 (2013.01); F21V 33/0056 (2013.01); H04R 9/045 (2013.01); F21V 29/10 (2015.01); F21V 2200/15 (2015.01)] 14 Claims
OG exemplary drawing
 
1. An audio speaker configured to emit sound in a main sound emission direction, the audio speaker comprising:
a voice coil;
a movable diaphragm connected to the voice coil and configured to move together with the voice coil, the movable diaphragm comprising a front surface and a rear surface opposite the front surface;
a light source configured to emit light, the light source being located below the voice coil in a direction of the main sound emission direction;
a light guide configured to guide the light emitted from the light source to the front surface of the movable diaphragm; and
a cap connected to the movable diaphragm, wherein:
the cap comprises a transparent side surface providing an opening window through which the light exiting the light guide is passed to the front surface of the movable diaphragm; and
the cap comprises a top surface with a non-transparent material that is not transparent to the light from the light source.