Re: [Paddlewise] compass and red light

From: Mark Zen <canoeist_at_netbox.com>
Date: Tue, 02 Mar 1999 12:03:57 -0700
At 11:24 02-03-99 -0600,  CHUCK_at_multitech.com (Chuck Holst) wrote:
>
>
>>>
>At night the only color that will not damage your night vision is
>red. The yellow and green cyalume lights will ruin your night vision
>completely.  Red has no effect.
>>>
>
>I've heard it said lately that the color of the light is not so
>important as its intensity -- that a dim white light will not harm
>night vision more than a dim red light. I have also seen references
>to the military using green lighting to protect night vision.
>
>Jack, what do you know about this?
>
>Chuck Holst

last time this came up, someone provided a reference to a "reliable source"
saying this wasn't true [the red light] although we used it on our ships in
1990, i can't say what they use now, mainly cause i got out in '90, and moved
2000 miles from the nearest ocean ;-)

mark
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Received on Tue Mar 02 1999 - 11:04:36 PST

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