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How Light Emitting Plasma™ Works
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2010.06.11  02:37:49
트위터 페이스북 네이버 구글 msn

LUXIM’s (www.luxim.com) LiFi® brand of Light Emitting Plasma™ is a new class of solid state high intensity light sources bringing clean lighting solutions to general and specialty lighting.

With energy efficiency, long useful lifetime, full spectrum color, and dimming, LiFi lighting applications work better compared to conventional approaches such as HID or even newer sources such as LED in many applications. This technology brief describes the general construction of LiFi lighting systems and the basic technology building blocks behind their function.

LiFi construction
The LiFi product consists of three primary sub-assemblies:
? Emitter (including bulb)
? RF Driver
? Power supply

The PCB controls the electrical inputs and outputs of the lamp and houses the microcontroller used to manage different lamp functions. An RF (radio-frequency) signal is generated by the solid-state Power Amplifier Driver and is guided into an electric field about the bulb. The high concentration of energy in the electric field vaporizes the contents of the bulb to a plasma state at the bulb’s center; this controlled plasma generates an intense source of light.


LUXIM_LiFi emitter.jpg

Function of the Bulb Assembly
At the heart of LIFI™ is the bulb sub-assembly where a sealed bulb is embedded in a dielectric material. This design is more reliable than
conventional light sources that insert degradable electrodes into the bulb. The dielectric material serves two purposes; first as a waveguide for the RF energy transmitted by the PA and second as an electric field concentrator that focuses energy in the bulb. The energy from the electric field rapidly heats the material in the bulb to a plasma state that emits light of high intensity and full spectrum.

The design and construction of the LIFI™ light source enable efficiency, long stable life, full spectrum intensity that is digitally controlled and easy to use.


For details, click http://www.luxim.com/dynamic/display.php/31

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