Thursday, March 3, 2011

LEDs and Some Real World Applications

LEDs and Some Real World Applications: Since their inception, Light-Emitted Diodes have powered the indicator light features of electronic devices. As time wore on and the cost to develop multiple uses for LEDs came about, LED applications stretched as wide and as far as human imagination could take them. One of the most common applications using LEDs today are still for indicators and signs, although which indicators and which signs certainly don't resemble the LED usage of yesteryear.

These days you will find LED lighting up stadiums at sporting events, dynamic billboard signage, at train, bus and airport stations, including on the planes, trains and automobiles themselves. Single color lighting is used in traffic signals, emergency vehicle lighting, navigation lights on ships and planes, even Christmas lighting. Yellow and red LEDs are useful applications in areas where night vision is critical, such as in the cockpit of airplanes, on board ships, and within submarines. Observatories also benefit from these low heat, low energy light sources.

In the automotive industry, LED applications have found their way into the brake lights, turn signals and marker lights. Because LED has a faster switching time, they have actually increased automotive safety, by lighting up faster than the old incandescent styles, thereby increasing the reaction time by as much as one car length. There are even some manufacturers who are introducing LEDs into the headlamps, producing a thinner, more pleasing light beam

You'll find, because the low output LEDs are so inexpensive to produce, that growing popularity has increased in items that don't have a long shelf life, like glowsticks and things at concerts and event, and the photonic textile known as Lumalive. There is even a movement known as LED art, where artists use LEDs in their creative pieces.

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