• on Education & Information
  • Published in issue 6/2011 on page 76
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Solid Light: the Remarkable Prehistory of the LED

Retronics

Solid Light: the Remarkable Prehistory of the LED

Who invented the light emitting diode or LED? Nobody! Let’s re-phrase the question then; who was the first to discover light emission from semiconductor substances? The answer is Marconi’s research assistant, Henry (H. J.) Round, in 1907.

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