I'm wondering what color light, or LED light, is least likely to disrupt your night vision. I know if you use a regular indecent flashlight in the dark it takes a few moments for you to get your eyes readjusted to the dark. What light is best suited for not screwing up your night vision when in use?
I heard something about a red LED wasn’t hard on the eyes…?
2007-07-09 05:05:43 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Red...check any chart room on a ship, it will have a red light, not a green one.
From wikipedia:
In biological night vision, molecules of rhodopsin in the rods of the eye undergo a change in shape as light is absorbed by them. Rhodopsin is the chemical that allows night-vision, and is extremely sensitive to light. Exposed to white light, the pigment immediately bleaches, and it takes about 30 minutes to regenerate fully, but most of the adaptation occurs within the first five or ten minutes in the dark. Rhodopsin in the human rods is insensitive to the longer red wavelengths of light, so many people use red light to preserve night vision as it will not deplete the eye's rhodopsin stores in the rods and instead is viewed by the cones.
Some animals, such as cats, dogs, and deer have a structure called tapetum lucidum in the back of the eye that reflects light back towards the retina, increasing the amount of light it captures. In humans, only 10% of the light that enters the eye falls on photosensitive parts of the retina. An animal's ability to see in low light levels may be similar to what humans see when using first or perhaps second generation image intensifiers.
2007-07-09 08:38:48 · answer #1 · answered by Captain Algae 4 · 1⤊ 0⤋
I put my night vision on over my welder's hood. I use a Miller Elite set at #9 shade. That keeps the night vision about right for most day light situations.
2016-03-15 01:15:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Best Way Improve Your Eyesight!
2016-07-26 07:46:20 · answer #3 · answered by ? 4 · 0⤊ 0⤋
no i dont think so
the green light actually a very dark green light
it helps our pupil to remain in its position
u can buy it from the market as a night vision glasses
as per red led it could be an alternative but led's r not much effective which a night vision glass is.........okkk
2007-07-09 05:14:13 · answer #4 · answered by chirag j 1 · 0⤊ 2⤋
Red light is best. It does not saturate the receptors in your eye, I belive the cones.
2007-07-09 05:10:32 · answer #5 · answered by nyphdinmd 7 · 0⤊ 0⤋
green
2007-07-09 05:11:27 · answer #6 · answered by KnightRider 1 · 0⤊ 0⤋
red or green
2007-07-09 05:12:47 · answer #7 · answered by randy 7 · 0⤊ 0⤋
definatly always green
2007-07-09 05:15:50 · answer #8 · answered by xBrokenxHeartedx 2 · 0⤊ 1⤋