Re: [NTLK] Red backlights (was: Need a new backlight)

From: Michael Cox (mcox_at_cdinc.net)
Date: Fri Feb 06 2004 - 15:03:12 PST

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On Thursday 05 February 2004 12:20 pm, Humphreys, David (URB) wrote:

> Er, actually, ~530nm is the most receptive and that's GREEN.
>
> The reason red is used for night lights is precisely for the opposite
> reason - the eye is fairly insensitive to it and so it doesn't ruin your
> night vision.

Indeed. Hence the plethora of red-lensed lighting devices for amateur
astronomers.

mc
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