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Development of LED - Research Paper Example

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However, energy is becoming more expensive due to its high demand by most of the industries and organization. This has forced most of the organizations and industries to opt…
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Development of LED
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The light-emitting diode produces light that is uniformly dispersed, and the output of the light is equally dispersed over the lens that makes them brighter than the lamps of incandescent. Light-emitting diodes are efficient in energy and can produce a light output of up to ninety percent while producing very little heat while the bulbs of incandescent generate heat by using ninety percent of there energy. An additional loss of energy is experienced in the lamps of incandescent when it comes to its use in the traffic signal.

This is so as it only produces white light which has to be filtered for a traffic signal. On the other hand, light-emitting diode produces light that are colored, therefore, dose not need any filtering out. All the energy produced is intense around one colored band, and no energy is wasted on colors that are undesired. The need for finding a way to the reduction of the energy consumption and reduction in the global warming is the drive for the development of energy saving electrical device. The innovation of the light-emitting diode has greatly contributed to energy conservation.

However, the little problem face by the device is that it dose not operate efficiently in regions that experience snow and in the very cold environment. However, the technologies in developing heat sink which will transfer heat that is produced at the junction to the recommended areas of the light fixture the problem will be solved. The device will work well in all the climatic condition (Gu, Alex and Nadarajah, pg 1-10). Light emitting diodes are p-n junction devices that are constructed using semiconductors such as gallium phosphide, gallium arsenide, or gallium arsenide phosphide emitting light in the far IR (940m), red or yellow and red or green regions respectively.

In a light-emitting diode, the light color depends on the semiconductors used band gap, as the gap increases, the light changes from red, orange, yellow,

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