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IIRC that was because blue LEDs used to be more expensive than other colours, so it was (very briefly) an indicator of high price.
by creshal 11y ago
IIRC that was because blue LEDs used to be more expensive than other colours, so it was (very briefly) an indicator of high price.
- SyneRyder 11y agoThe inventors of the blue LED won the Nobel Prize for Physics, because it was so difficult to make, and paved the way for white LED lighting and lights with tuneable colours: http://www.extremetech.com/extreme/191580-blue-led-inventors-awarded-nobel-prize-for-enabling-white-led-lighting-revolution http://www.extremetech.com/extreme/191580-blue-led-inventors...
- blt 11y agoThey are still more expensive - a search on Mouser yields many 6-cent red LEDs and 10-cent green LEDs but no blue LEDs under 15 cents. But yeah, in the past the difference was muuuuch bigger.