New Frontiers For Public Lighting: Led

The lighting, however, has significant costs, especially out of the city

, into the campaign where to lit long distance become very expensive for the municipalities. But you cant give up what, at the perceptual level, is a guarantee of safety. That was a question that recently had no solving but with new technology has come to a solution that combines high yield at low light and economic costs compared to traditional lights present along our streets: citizen led lighting.




LED Light Emitted Diode stands in 1962 developed by Nick Holonyak Jr., inventor who designed the prototype while working as a consultant for General Electric. The diode is the simplest type of existing semiconductor composed of aluminum and gallium arsenide. The principle is precisely what led to exploit the optical properties of these materials to produce photons, and light. Precisely because of these technical characteristics of the LED is a more economic opportunities to illuminate large areas without impacting too much on banks that finance these plants. There are also many other elements for this type of illumination: the long life, high reliability, high efficiency and low consumption.




Still talking about the public lighting the LED lamps can replace incandescent, halogen or fluorescent (energy saving) as the efficiency of light / consumption is currently listed 3 to 1. So the commercial strength of this product is based on its low price the same and their compatibility with silicon circuits particular that makes them especially attractive to replace existing plants. Furthermore, no minor factor, the LED lights hardly need maintenance and can be installed in several points. Something that traditional systems do not allow.




The led light has also special characteristics that make it particularly suitable for precisely the lighting: the ease of setting up efficient optical plastic color saturation, the possibility of a strong spot effect, necessity of a low voltage, the almost absence of sensitivity to vibration and moisture, the absence of mercury and the duration is not influenced by the number of starts and stops and especially lack of IR and UV components.




So far the main uses that have been made of this technology has been limited in recent years but are growing more and more. In fact the LED in now used in electronic components, infrared remote controls, in indictors of status (light bulbs found in many household appliance such as TV, stereo hi-fi)in the backlight of LCD screens and in traffic lights and stop in the car, the flashing of emergency vehicles (like ambulance, police, ) the variable message in boards and now, white led can be used even for public and private lightning.




by: AndreaPP

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