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The Range
Gear Talk
Red vs Green Lasers
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<blockquote data-quote="mhphoto" data-source="post: 1650326" data-attributes="member: 6288"><p>I think they got that backwards. Our eye cones are most sensitive to the green/cyan part of the spectrum, so logic suggests that for daytime we'd want something that would stand out the most. When the cones shut down and rods take over, rods are essentially blind to the red end of the spectrum and won't be "turned off" if they see red light. But cyanish light resets the rods. Of course any really bright light will reset the rods. </p><p></p><p>There's a headlamp on the market that has cyan colored LEDs instead of straight white ones and it boasts that it's better for our natural night vision, which is exactly opposite of the truth. </p><p></p><p>Basically green lasers are a lot easier to see at all distances and due to rayleigh scattering. the beam is more visible in the air than red lasers.</p></blockquote><p></p>
[QUOTE="mhphoto, post: 1650326, member: 6288"] I think they got that backwards. Our eye cones are most sensitive to the green/cyan part of the spectrum, so logic suggests that for daytime we'd want something that would stand out the most. When the cones shut down and rods take over, rods are essentially blind to the red end of the spectrum and won't be "turned off" if they see red light. But cyanish light resets the rods. Of course any really bright light will reset the rods. There's a headlamp on the market that has cyan colored LEDs instead of straight white ones and it boasts that it's better for our natural night vision, which is exactly opposite of the truth. Basically green lasers are a lot easier to see at all distances and due to rayleigh scattering. the beam is more visible in the air than red lasers. [/QUOTE]
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