H. J. Round

✶June 2, 1881

†August 17, 1966

1 candle burning, 5 lit in all

About their life

Captain Henry Joseph Round was an English engineer and one of the early pioneers of radio. He was the first to report the observation of electroluminescence from a solid state diode, leading to the discovery of the light-emitting diode. He was a personal assistant to Guglielmo Marconi.

British inventor (1881–1966)

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Biography from the article H. J. Round on the English Wikipedia, available under CC BY-SA 4.0.