Germicidal lighting
US-2021353813-A1 · Nov 18, 2021 · US
US12474044B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12474044-B2 |
| Application number | US-202217886934-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 12, 2022 |
| Priority date | Aug 13, 2021 |
| Publication date | Nov 18, 2025 |
| Grant date | Nov 18, 2025 |
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A ceiling fan includes a rotatable hub adapted to be suspended from the ceiling. The hub includes at least one fan blade adapted for rotating with the hub. An uplight module is provided having a plurality of different lights, each of the plurality of lights for producing a different type of light incident on the ceiling. The uplight module may include a modular circuit board assembly comprising a main board including one or more LEDs and one or more auxiliary boards connected to the main board and including one or more UV LEDs, whereby adaptation for producing germicidal energy can be achieved without dismounting the ceiling fan from the ceiling. A controller may be provided for controlling the light intensity or temperature, including from pre-selected values. Related methods are also disclosed.
Opening claim text (preview).
The invention claimed is: 1 . A ceiling fan for suspending from a ceiling, comprising: a hub adapted to be suspended from the ceiling, the hub including at least one fan blade adapted for rotating with the hub; an uplight module having a plurality of lights, each of the plurality of lights adapted to produce a different type of light incident on the ceiling; wherein the plurality of lights comprise at least two LEDs, each for producing light of a different color temperature; and a main circuit board including the at least two LEDs and an auxiliary circuit board connected to the main circuit board, the auxiliary circuit board including a plurality of UV LEDs. 2 . The ceiling fan of claim 1 , further including a controller adapted for toggling between the different color temperatures of light produced by each one of the at least two LEDs. 3 . The ceiling fan of claim 1 , wherein the plurality of lights comprise LEDs for producing light of different colors. 4 . The ceiling fan of claim 1 , wherein the plurality of lights further comprise red, green, and blue LEDs. 5 . The ceiling fan of claim 1 , wherein the auxiliary circuit board is connected to the main circuit board radially outwardly of the main circuit board. 6 . The ceiling fan of claim 1 , further including a tray for supporting the plurality of lights, the tray including a peripheral lip. 7 . The ceiling fan of claim 1 , further including a downlight module. 8 . The ceiling fan of claim 1 , wherein the plurality of LEDs are arranged in concentric rows.
comprising an assembly of point-like light sources · CPC title
of visible and non-visible spectrum · CPC title
Ceiling fans · CPC title
Light-emitting diodes [LED] · CPC title
Fans, e.g. ceiling fans (forced cooling of lighting devices characterised by the arrangement of fans F21V29/67) · CPC title
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