LOUDSPEAKER Russian patent published in 2025 - IPC H04R1/02 F21V33/00 F21V7/06 G02B5/12 

FIELD: acoustics.

SUBSTANCE: loudspeaker with a device housing comprising: an upper surface; reflecting surface located downward from the outer edge of the upper surface; wall overlapping with reflecting surface; hole made between outer edge of upper surface and upper edge of wall; light source placed inside the housing of the device; and a light guide arranged inside the housing of the device, optically connected to the light source and located between the light source and the opening. Reflecting surface, light source, light guide and at least one wall are arranged so that light emitted by light source, passes through the light guide to the reflecting surface, is reflected from it and exits the loudspeaker through the hole, and the height and depth of the hole set its aspect ratio in the range from approximately 0.96 to approximately 1.53.

EFFECT: increased viewing angle from which light observation is possible.

13 cl, 3 dwg