WBUR News

Fifty Years Ago, A Bright Idea12:25

Play

In October 1962, Nick Holonyak and colleagues at General Electric built the first practical light-emitting diode, or LED, that could emit visible light. Semiconductor LEDs are now a part of uncountable electronic devices. Holonyak discusses the invention, and his work since then.

Share

Support the news

Next Up

Where to now?

More NPR or Explore Audio.