3 ms·
Blue leds are an obviously incorrect choice; they are only used because are novel and trendy (well, I guess they used to be novel and trendy, anyway). Human col
by Sharlin 4y ago
Blue leds are an obviously incorrect choice; they are only used because are novel and trendy (well, I guess they used to be novel and trendy, anyway). Human color vision is the least sensitive to blue light – but human low-light vision is the most sensitive to it!
- exhuma 4y agoAs someone who is red/green colour blind, I disagree that they are an incorrect choice. Annoying at night yes. But wherever they are used I can finally make out the difference between an ok/nok status.
- Sharlin 4y agoAh, I’m red/green blind too but most blue leds in electronics don’t seem to have a status function beyond "on/off", they’re there just to look futuristic.
- xupybd 4y agoYeah my phone charger has a super bright blue led in it. It's kept in a draw at night as the entire room lights up. I keep meaning to cut out the led.
- adgjlsfhk1 4y agomy best guess for blue lights is that it's one of the ones with higher energy efficiency and red/yellow would indicate problems.