From: Ron Kean (ronkean@juno.com)
Date: Thu Aug 05 1999 - 21:25:48 MDT
On Wed, 4 Aug 1999 22:18:32 EDT CurtAdams@aol.com writes:
>
> In a message dated 8/4/99 14:36:55, you wrote:
>
>
> >And any pointers to subject descriptions of UV colors?
>
> An extremely deep purple, flecked with transient green dots (which
> come from fluorescence of optical pigments).
That should probably be violet, not purple. Purple is a polychromatic
color created by mixing red and blue. The word purple is often misused
to mean violet, possibly because many people cannot tell the difference
between purple and violet. Violet can be monochromatic and is the
shortest wavelength which can be seen by the average person, about 400
nanometers. It is the next higher frequency (shorter wavelength) color,
from blue. For some reason, possibly having to do with the eye's lens,
people do not focus well on blue or violet light. If one looks at a
'black light' (when it's on), it appears blurry.
Ron Kean
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