Many people think that the LED light bulb is a relatively new innovation. But it may come as huge surprise to discover that in fact these forms of lights were actually developed more than a century ago.
The first kinds of light emitting diode (LED) bulbs invented were only able to produce a very dim yellow light. They weren't actually able to emit the kind of bright light that the models available today can.
Around 1907 in the laboratories of Marconi experiments were being conducted using semiconductors to learn what they were capable of doing. During only one such experiment being carried out by Henry J Round it was found that the junction of semiconductor had the capability to produce light. But during his experiments he used silicon carbide and since the light emitted was so dim they thought using semiconductors in this manner was useless. In turn this resulted in them thinking that further studies would not be necessary.
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At about the same time however several similar experiments were being carried out in Germany and Russia. Then in 1920, Oleg Vladimirovich Losev efficiently produced the first light emitting diode. However because his work didn't get the international recognition he thought it would what he had invented went pretty much unnoticed.
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Then in 1936 a breakthrough happened when a paper written by George Destriau on studies with Zinc Sulphide powder was published. His concept of electroluminescence gained acclaim all over the world after he detected light when an electric current was passed through the zinc sulphur powder during an investigate.
This unique phenomenon was then subjected to a great deal of research and further experiments during the later part of the 20th Century. It was then in the 1950's that British Scientists developed the first infrared LED light bulb. In the experiments used to create such the semi conductor termed as Gallium Arsenide was used. Development of this sort of LED light bulb was in its infant stages and in order to create light at room temperature a lot of effort was needed. Furthermore all the LED bulbs designed during this time would have to be immersed in liquid nitrogen when being operated.
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Further research took place and then in 1962 a research expert for GEC (General Electric Company) by the name of Nick Holonyak Jr was able to develop a red light that turned out to be the very first visible spectrum light. It was this discovery that helped to change the way LEDs were considered. It was his experiments that helped him to then become known as the father of LEDs. However it wasn't only him but additionally one of his students (M George Craford) who was working on such. M George Craford first created an LED light bulb that produced yellow light before then in 1972 coming up with ones that were able to emit light in red and red/orange colors.
LED lights in El Paso, Texas are being put to use more creatively than in other cities. They are showing up in recreation parks and shops, or even in courthouses.
So really as you may notice from above the creation of the LED light bulb is something that should be taken lightly.
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