Three color LED bulb
View Patent ↗The multi-color light lamp has a base divided into a plurality of segments. The three segments are spaced at 120 degrees. More or less segments can be used. An LED is positioned in each segment, the LED in each segment emits a color distinct from the light emitted by the LEDs in the other segments. If the lamp is to be used for automotive purposes, the LED in a first segment emits red light as a taillight and a stop light, the LED in a second segment emits yellow light a turn signal lamp, and the LED in the third segment emits white light as a backup light. A light pipe is operatively associated with the LEDs in each segment for directing emitted light away from the base. The LEDs (preferably two per segment) are mounted upon a thermally efficient printed circuit board such as a flex-on aluminum board.
1. A multi-color light emitting lamp comprising:
a base divided into three segments and including a central mounting aperture having a fastener, said fastener being affixed to a vehicle body;
at least one LED operatively positioned in each segment, the at least one LED in each segment emitting light in a color distinct from the light emitted by the at least one LED in the other segments; said LEDs being mounted upon a thermally efficient printed circuit board; a first of said LEDs emitting red light, a second of said LEDs emitting yellow light and a third of said LEDs emitting white light; and
a light pipe operatively associated with the at least one LED in each segment for directing emitted light away from said base.
2. The multi-color light emitting lamp of claim 1 wherein an optical plate is provided over said segments.
3. The multi-color light emitting lamp of claim 1 wherein said base includes a plurality of peripherally located mounting apertures.
4. The multi-color light emitting lamp of claim 3 wherein said base includes a center-mounted infra-red source.