Thanks to Ginny from the Cree 'Lighting the LED Revolution' blog for flagging this one - the 20th anniversary of the commercialisation of a blue LED, following red and green LEDs and thus enabling a fuller colour spectrum, including white lighting..."What were you doing in 1989? Maybe you were rocking out to "Don't Worry, Be Happy," the Grammy-award winning hit of the year. Perhaps you were killing time playing Tetris on the newly-released Nintendo Game Boy," she begins.
A highlight of the interview is his contrasting of a blue led circa 1990/1 (above) with a modern day counterpart (left). Both run from 3V but there's a 3-4,000x increase in brightness, from 8-9µW to 30mW. See the difference in this video of the interview:
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