ATM Which colour

[Andrew Melville <a.melville@mailbox.gu.edu.au>]

I found this page

http://members.cox.net/rigelsys/why_red.html

which has among other things


The first two papers (see below) show quite clearly that the redder the better for getting re-dark adapted after exposure to light.  The bottom line of these papers is that red lights are best, but if you can see that itís red on the paper you look at, then it's too bright.  You see people at star parties with blazing bright flashlights and light boxes for reading charts, thinking that since they're red itís okay.  But if the red light you're using shows any more colorfully than funny brown-grey, then it's too bright."


 "... it's been well-tested under laboratory conditions.  See the following papers, all of which were published 40 years ago in the "Journal of the Optical Society of America":

Hulburt, 1951, "Time of Dark Adaptation After Stimulation by Various Brightnesses and Colors, "  Journ. Optical Soc. America (JOSA), 41, 402.
Smith et al., 1955, "Effects of Exposure to Various Red Lights upon Dark Adaptation Measured by the Method of Constant Stimuli," JOSA 45, 5.
Kinney 1955, "Sensitivity of the Eye to Spectral Radiation at Scotopic and Mesopic intensity Levels," JOSA, 45, 507.
Sweeney et al. 1960, "Season Changes in Scotopic Sensitivity," JOSA 50, 237.

 Andrew J. Melville
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 Marine Biology

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