The US military switched from red to dim green for protecting night vision
in many applications years ago for many of the reasons you suggest.

Andy

----- Original Message -----
Sent: Sunday, August 26, 2001 7:07 PM
Subject: Re: [M]: A Night Vision Question


> A couple of weeks ago, a question came up on the proper color for a
> supplemental light that would still preserve one's night vision.
> Conventional wisdom dictates dim red light, but I've pursued this a bit to
> find an explanation. I haven't found this conclusion written anywhere in
> my sources, but then I didn't get too carried away with researching the
> topic either. Usually when I "discover" something it later turns out that
> it has been well known for 50 years or so.

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