Quote:
Originally Posted by 9500ier
There is a reason the military use red and green at night, it allows you to use more of your sight to see other things (I do not know how to explain it... something about cones and rods). Anyhow, I like to see as much outside of my car as possible.
the simple reason for this is that blue light is very hard for the human eye to focus on, it scatters easily (hence the blue sky) and for many people can be painfully bright (the blue LED lightbars on cruisers around here are especially irritating to my eyes, they literally hurt my eyes to look at them)
Red light does not affect dark adaptation/night adaption, hence why the millitary and pilots use red when they want to preserve night vision, tests have proven that any light levels above 1 lumen that are not red can negatively impact night vision
Red; does not affect night vision, easiest on the eyes
Green; the Human eye is most sensitive to green light, so less is needed for equivalent brightness, bright green will damage dark adaptation
Blue; the *worst* color for preserving dark adaptation, as it scatters so easily and is hard to focus on, it looks the coolest though
I also keep my dash lights as low as possible, as my Saturn Ion doesn't have the most effective headlight reflectors, and I need to make the most use out of the light the headlights do produce (and I'm using GE Nighthawk bulbs to boot), a blue LED detector would be a major distraction to me
as always, YMMV
