LED, is the abbreviated form of Light Emitting Diode in English and means "Light Emitting Diode". LEDs are semiconductor circuit elements that convert electrical energy into the light. It is the last artificial light source to be invented. The fact that it creates light in a completely different way than bulbs or fluorescents and has some advantages, is made LEDs one of the popular subjects of science. It was invented in Russia in the 1920s by a radio technician named Oleg Vladimirovich Losev. Oleg; he noticed that current is flowing through the diodes are used in radio receivers, and in 1927 he published his discoveries about LED in a Russian newspaper. In 1962, it was turned into an electronic component that could be practically applied in America.
