Blue LED
part · 1993 · Digital age
A gallium nitride LED (Nakamura) that opened the way to white light.
Inventors: H. J. Round, Oleg Losev, James R. Biard, Nick Holonyak.
Principles and materials it uses
- Gallium nitride — is made of. Gallium nitride.
Where it is used
- LED lamp — is part of. White light comes from a blue chip and a phosphor.
What it is a kind of
- LED — is a kind of. A blue LED.