LED light source characteristics
(1) new green light: LED using cold light source, glare, no radiation, no harmful substances in use. LED's operating voltage is low, the use of a DC drive, ultra-low power consumption (single tube 0.03 0.06w), electro-optical power conversion close to 100%, more than 80% under the same lighting effects than traditional energy sources. LED environmental benefits of better, no ultraviolet and infrared spectra, and recyclable waste, no pollution, no mercury elements, safe touch, typical of the green lighting source.
② long life: LED solid cold light source, epoxy resin, anti-vibration, light body and no loose parts, there is no filament light easy to burn, heat deposition, the light fades and other shortcomings, the service life of up to 60,000 to 100,000 hours, is 10 times more than the traditional light source service life. LED performance -30 to +50 oC Environmental work properly.
To ③ transform: LED light source can make use of red, green, and blue color theory, under the control of computer technology to make three colors with 256 gray levels, and any mix, you can generate 256X256X256 (16777216) colors to form a different light color combinations thereof. LED combinations of light and color changing, can achieve a variety of dynamic effects and variety of images.
(4) High-tech: the glow of traditional light sources, LED light source is low voltage microelectronic products, the successful integration of computer technology, network communication technology, image processing and embedded control technology. The chip size used in conventional LED lights 0.25mmX0.25nm size of an LED for lighting usually is about more than 1.0mmX1.0mm. The LED die molding work desktop structure, inverted pyramid structure and the flip-chip design can improve the luminous efficiency, which issued more light. The innovative design of the LED package including a high conductivity metal block substrate, a flip-chip design and bare disc casting the lead frame, etc., using these methods can design a high power, low thermal resistance of the device, but these devices illumination than the traditional LED product illumination bigger.
A typical high-flux LED device capable of producing a few lumens to tens of Lumen, more LED updated design can be integrated in a single device or multiple devices installed in a single assembly, so that the output of a considerable number of lumens small incandescent. For example, a high-power 12-chip monochrome LED device can output 200lm light energy, the power dissipated in the 10 ~~ 15W between.
The application of the LED light source is very flexible and can be made into a point, line, face various forms of short, light products; LED control is extremely convenient, as long as the adjustment of the current, you can freely adjust the light; different combination of light color changing, the use of timing control circuit, a variety of dynamic effects can be better achieved. LED has been widely used in a variety of lighting devices, such as battery-powered flash, micro voice-activated lights, security lights, outdoor road and interior stairs lights and buildings and markers continuous lighting.
The emergence of white LED, LED lighting functions taken from the identification function substantive step. White LED closest to the sun, the better to reflect the true color of the irradiated object, so from a technical point of view, the white LED is undoubtedly the most state-of-the-art LED technology. White LED has begun to enter the number of application areas, emergency lights, flashlights, flash and other products have come out, but the price is very expensive, and therefore difficult to spread. White LED universal premise is to lower prices, while prices fell after a certain market size may be formed in the white LED, the fusion of the two ultimately depends on technological progress.
