Cluster of lighting devices, display and method of manufacture
AssigneeLumileds LLC
InventorsBenno Spinger, Dirk Vanderhaeghen, Marc Droegeler, Floris Maria Hermansz Crompvoets, Thorsten Anger
Life of this patent
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Abstract
A cluster of lighting devices, a display and a method of manufacturing a display are described. The lighting device includes a mixing box, a light source, a transparent layer and a light diffusing layer. The light source is embedded in the mixing box. The transparent layer is adjacent to the light source. The light diffusing layer is adjacent to the transparent layer. A surface emitter display includes a cluster of surface emitters including a plurality of surface emitters. At least one circuit board is electrically coupled to at least one surface emitter of the plurality of surface emitters.
Claims19
A cluster of lighting devices comprising:
- a plurality of lighting devices electrically coupled together, each lighting device comprising:
- a mixing box;
- a circuit board;
- a light source embedded in the mixing box, the light source having a first surface affixed to a surface of the circuit board and a second surface opposite the first surface;
- a transparent layer having a first surface adjacent to the second surface of the light source and a second surface opposite the first surface, wherein the transparent layer is formed from a first material that spreads light emitted by the light source laterally into the mixing box;
- and
- a light diffusing layer having a first surface adjacent to the second surface of the transparent layer, wherein the light diffusing layer comprises a layer of the first material comprising particles of a white pigment that scatter the light emitted by the light source in three dimensions.
A display comprising:
- a plurality of surface emitters, each surface emitter of the plurality of surface emitters comprising:
- a mixing box;
- a first circuit board;
- a light source embedded in the mixing box, the light source having a first surface affixed to a surface of the first circuit board and a second surface opposite the first surface;
- a transparent layer having a first surface adjacent to the second surface of the light source and a second surface opposite the first surface, wherein the transparent layer is formed from a first material that spreads light emitted by the light source laterally into the mixing box;
- and
- a light diffusing layer having a first surface adjacent to the second surface of the transparent layer, wherein the light diffusing layer comprises a layer of the first material comprising particles of a white pigment that scatter the light emitted by the light source in three dimensions;
- at least one second circuit board electrically coupled to the first circuit board of at least one surface emitter of the plurality of surface emitters;
- and
- a bezel including at least one aperture coupled to the plurality of surface emitters.
A method of manufacturing a lighting device display, the method comprising:
- manufacturing a lighting device by:
- affixing a first surface of a light source to a surface of a first circuit board, wherein the light source has a second surface opposite the first surface,
- inserting the light source within a mixing box,
- molding a transparent layer formed from a first material within the mixing box such that the transparent layer has a first surface adjacent the second surface of the light source and a second surface opposite the first surface and spreads light emitted by the light source laterally into the mixing box, and
- dispensing a light diffusing layer within the mixing box such that a first surface of the light diffusing layer is adjacent the second surface of the transparent layer, wherein the light diffusing layer comprises a layer of the first material comprising particles of a white pigment that scatter the light emitted by the light source in three dimensions;
- and
- electrically coupling more than one lighting device together.
Dependencies are inferred from the claim text.