The luminous principle of LED

So how do leds work? LED is an electronic part that can convert electrical energy into light energy, and at the same time has the characteristics of a diode, that is, with a positive electrode and a negative electrode, the most special place of LED is that only from the positive electrode is powered on,luminous led,luminous led lights,luminous intensity led,led luminous efficiency,led luminosity,luminous leds so generally given direct current, LED will emit light stably, but if connected to alternating current, LED will show a flashing pattern. The frequency of the flash depends on the frequency of the input AC. The luminous principle of LED is an applied voltage, so that electrons and holes are combined in the semiconductor, and energy is released in the form of light. At present, different kinds of LED developed by the global industry can emit different wavelengths of light from infrared to blue, and the industry also has purple ~ ultraviolet LED, the most attractive development of LED in recent years is to coat the fluorescent powder on the blue LED, the blue light into white LED products. The reason why LED is called the new light source of the century is that LED has the characteristics of point light source and solid state light source, which can save energy, high shock resistance, long life, small size and fast response, and high color saturation.