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Light-emitting diode


A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode, which emits light when activated. When a suitable voltage is ...

How Light Emitting Diodes Work | HowStuffWorks


Light emitting diodes, commonly called LEDs, are real unsung heroes in the electronics world. They do dozens of different jobs and are found in all kinds of ...

Light Emitting Diodes - HyperPhysics


Light can be produced and/or controlled electronically in a number of ways. In light emitting diodes (LEDs), light is produced by a solid state process called ...

Light Emitting Diodes - Excelitas


At Excelitas, we are focused on helping our customers accelerate LED-based lighting designs which are innovative, energy-efficient and contribute to reduction  ...

What is light-emitting diode (LED)? - Definition from WhatIs.com


A light-emitting diode (LED) is a semiconductor device that emits visible light when an electric current passes through it.

LED Lights - How it Works - History - Edison Tech Center


Introduction: The LED is a light source which uses semiconductors and electroluminescence to create light. There are two major kinds of light emitting diodes: ...

Light-Emitting Diodes (LEDs) - learn.sparkfun.com


The positive side of the LED is called the “anode” and is marked by having a longer “lead,” or leg. The other, negative side of the LED is called the “cathode.

How do diodes and light-emitting diodes (LEDs) work?


But, even better, there are LEDs (light-emitting diodes) that are just as bright as bulbs, last virtually forever, and use hardly any energy at all. An LED is a special  ...

Light-Emitting Diodes: E. Fred Schubert: 9780521865388: Amazon ...


Editorial Reviews. Review. 'Light-Emitting Diodes is an excellent examination of the physics and technology of semiconductor LEDs. The narration is simple and ...

Learn About LED Bulbs | ENERGY STAR


Why should I choose ENERGY STAR certified LED lighting products? What are LEDs? LEDs, or lightemitting diodes, are semiconductor devices that produce ...

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