Dust cap illumination
AssigneeHarman International Industries, Incorporated
InventorsHenrik Kirkeby Jepsen, Marcel Pilgaard Havemann, Henrik Muusmann Jørgensen
Life of this patent
Estimating the term…
Abstract
Described embodiments include an audio speaker configured to emit sound in a main sound emission direction. The audio speaker comprises a voice coil, a movable diaphragm connected to the voice coil and configured to move together with the voice coil, the movable diaphragm comprising, in a direction opposite the main sound emission direction, a front surface and a rear surface opposite the front surface. The audio speaker further comprises a light source configured to emit light which is located, in a direction of the main sound emission direction, below the voice coil, and a light guide configured to guide the light emitted from the light source to the front surface of the movable diaphragm.
Claims18
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 made of a transparent material and 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, the cap comprising 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.
A system comprising:
- 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 made of a transparent material and 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, the cap comprising 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.
Dependencies are inferred from the claim text.