![]() Close up image of a surface mount LED A bulb-shaped modern retrofit LED lamp with aluminium heat sink, a light diffusing dome and E27 screw base, using a built-in power supply working on mains voltageA light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. The flat bottom surfaces of the anvil and post embedded inside the epoxy act as anchors, to prevent the conductors from being forcefully pulled out via mechanical strain or vibration. Biard (1961)Nick Holonyak (1962)First productionOctober 1962Pin configurationAnode and cathodeElectronic symbol Parts of a conventional LED. For application to area lighting, see LED lamp.Not to be confused with LCD.semiconductor light sourceLight-emitting diode (LED)Blue, green, and red LEDs in 5 mm diffused caseWorking principleElectroluminescenceInventedH. For other uses, see LED (disambiguation).This article is about the basics of light emitting diodes. ![]() ![]() From Wikipedia, the free encyclopedia (Redirected from Light emitting diode) Jump to navigation Jump to search 'LED' redirects here. ![]()
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