mobugs t1_j7m8zo0 wrote on February 7, 2023 at 8:39 PM Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23 I remember a physics professor in highschool being very excited about the blue led telling us it would allow for white light LEDs. Permalink 6
mobugs t1_j7m8zo0 wrote
Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
I remember a physics professor in highschool being very excited about the blue led telling us it would allow for white light LEDs.