So, just finished reading an article on WaPo about fireflies/lightening bugs and got me thinking further… Car headlights suck. They mess up our night vision when we pass another dickhead running white/blue lights. We mess up the habit(at) of many animals/bugs. So why not red lights? My hiking/camping headlamp has a red light option, which is the only function I use, and I can see fine. Why the FUCK do we still have these ungodly bright white/blue lights?

  • justanotherjo@kbin.cafe
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    1 year ago

    Actually, you can’t “see fine” with the red lights. Sure, once your eyes adjust to the darker light, you can see at some level. But the red light doesn’t allow you to see anywhere near near as well as you can in a white light. also, if you have poor night vision, red light isn’t very good at all. And, the biggest reason why you can’t use red headlights is color blindness. There are people who would be completely in the dark with those headlights.

      • SHITPOSTING_ACCOUNT@feddit.de
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        1 year ago

        Isn’t there some specific color blindness that would make people unable to see reasonably under red light because they lack red cones and the other cones aren’t sensitive enough at that wavelength, so they’d effectively be seeing like a normal sighted person would see with only 10-20% of the light that’s present?

        Shouldn’t affect the area outside the fovea since there are also rods but that’s not too helpful.