LED lighting system
View Patent ↗LED lighting systems and methods of manufacture, which include one or more of the following: (1) a solid state active heat sink for cooling one or more LED chips; (2) a front end power supply providing high voltage to the active heat sink component; (3) a front end power supply that provides a relatively low voltage load to a plurality of LED chips; (4) a front end hybrid power supply with both a high and low voltage output, wherein the high voltage is at least 2 kV higher than the low voltage output; (5) an over-mold encapsulating the front end components, wherein the over-mold is provided by a reaction injection molding process; (6) a digital micro-minor device (DMD) for providing pixilated light, color mixing, and intensity control; and (7) an optic having quantum dots (QDs), wherein the light output of the DMD activates for the QDs.
1. An LED lighting system, comprising:
a light emitting diode (LED) bulb base;
a front end power supply electrically coupled to the LED bulb base;
an over-mold encapsulating the front end power supply;
a solid state active heat sink electrically coupled to and driven by the front end power supply;
a plurality of light-emitting diodes thermally cooled by the solid state active heat sink; a digital micro-mirror device for receiving a light input from the light-emitting diodes, wherein the digital micro-mirror device is configured to control direction, intensity, or color of the light output of the LED lighting system; a prismatic mechanism to convert the color of the light emitted from the light-emitting diodes prior to inputting the light into the digital micro-mirror device; and an optic having a plurality of quantum dots disposed therein, wherein the quantum dots are configured to produce polychromatic light after being activated by light output from the digital micro-mirror device.
2. The LED lighting system of claim 1 , wherein the over-mold is substantially free of silicon-emitting materials.
3. The LED lighting system of claim 1 , wherein the plurality of light-emitting diodes are electrically coupled to and driven by the front end power supply.
4. The LED lighting system of claim 1 , wherein the over-mold further includes one or more additives selected from the group consisting of: silicon carbide embedded beads, silicon carbide coated on a plastic/metal mesh, boron nitride, silicon nitride, aluminum oxide, low grade industrial diamonds, long carbon fibers, and any combination thereof.
5. The LED lighting system of claim 1 , wherein the solid state active heat sink is selected from the group consisting of: a diffused-surface piezoelectric cooler; a plasma cooling system; a micro-channel heat exchanger; and a micro-fluidics heat exchanger.
6. The LED lighting system of claim 1 , wherein the solid state active heat sink includes a filter component.
7. The LED lighting system of claim 6 , wherein the filter component is charged to repel dust particles.
8. An LED lighting system, comprising:
a light emitting diode (LED) bulb base;
a front end power supply electrically coupled to the LED bulb base, wherein the front end power supply is configured to provide a high voltage power output and a low voltage power output;
an over-mold encapsulating the front end power supply;
a solid state active heat sink electrically coupled to and driven by the high voltage power output of the front end power supply; and
a plurality of light-emitting diodes electrically coupled to and driven by the low voltage power output of the front end power supply; a digital micro-mirror device for receiving a light input from the light-emitting diodes, wherein the digital micro-mirror device is configured to control direction, intensity, or color of the light output of the LED lighting system; a prismatic mechanism to convert the color of the light emitted from the light-emitting diodes prior to inputting the light into the digital micro-mirror device; and an optic having a plurality of quantum dots disposed therein, wherein the quantum dots are configured to produce polychromatic light after being activated by light output from the digital micro-mirror device.
9. The LED lighting system of claim 8 , wherein the over-mold is substantially free of silicon-emitting materials.
10. The LED lighting system of claim 8 , wherein the over-mold further includes one or more additives selected from the group consisting of: silicon carbide embedded beads, silicon carbide coated on a plastic/metal mesh, boron nitride, silicon nitride, aluminum oxide, low grade industrial diamonds, long carbon fibers, and any combination thereof.
11. The LED lighting system of claim 8 , wherein the solid state active seat sink is selected from the group consisting of: a diffused-surface piezoelectric cooler; a plasma cooling system; a micro-channel heat exchanger; and a micro-fluidics heat exchanger.
12. The LED lighting system of claim 8 , wherein the solid state active heat sink includes a filter component.
13. The LED lighting system of claim 12 , wherein the filter component is charged to repel dust particles.
14. The LED lighting system of claim 8 , wherein the high voltage power output is at least 2 kV higher than the low voltage power output.
15. An LED lighting system, comprising:
a light emitting diode (LED) base;
a front end power supply electrically coupled to the LED bulb base, wherein the front end power supply is configured to provide two distinct voltage channels;
an over-mold encapsulating the front end power supply;
a solid state active heat sink electrically coupled to and driven by one of the two voltage channels of the front end power supply; and
a plurality of light-emitting diodes electrically coupled to and driven by the second of the two voltage channels of the front end power supply; a digital micro-mirror device for receiving a light input from the light-emitting diodes, wherein the digital micro-mirror device is configured to control direction, intensity, or color of the light output of the LED lighting system; a prismatic mechanism to convert the color of the light emitted from the light-emitting diodes prior to inputting the light into the digital micro-mirror device; and an optic having a plurality of quantum dots disposed therein, wherein the quantum dots are configured to produce polychromatic light after being activated by light output from the digital micro-mirror device.
16. The LED lighting system of claim 15 , wherein the over-mold is substantially free of silicon-emitting materials surrounding the front end power supply.
17. The LED lighting system of claim 15 , wherein one voltage channel provides an output at least 2 kV higher than the other voltage channel output.
18. An LED lighting system, comprising:
a light emitting diode (LED) bulb base;
a front end power supply mounted on a substrate and electrically coupled to the LED bulb base, wherein the front end power supply is configured to provide a high voltage power output and a low voltage power output, wherein the high voltage power output is at least 2 kV higher than the low voltage power output;
an over-mold encapsulating the front end power supply, wherein the over-mold is substantially free of silicon-emitting materials surrounding the front end power supply;
a solid state active heat sink electrically coupled to and driven by the high voltage power output of the front end power supply;
a plurality of light-emitting diodes electrically coupled to and driven by the low voltage power output of the front end power supply, wherein the plurality of light-emitting diodes are thermally cooled by the active heat sink;
a digital micro-mirror device for receiving a light input from the light-emitting diodes, wherein the digital micro-mirror device is configured to control the direction, intensity, or color of the light output of the LED lighting system; a prismatic mechanism to convert the color of the light emitted from the light-emitting diodes prior to inputting the light into the digital micro-mirror device; and an optic having a plurality of quantum dots disposed therein, wherein the quantum dots are configured to produce polychromatic light after being activated by light output from the digital micro-mirror device.