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Pete Stryjewski (pstryjew@colsun.Central.Sun.COM) wrote:

>How does the human eye perceive "Neon/Florescent" color (i.e. hot pink,
blaze
>orange, the Crayola Florescent Crayons)?  

>I assume it has something to do with absorption of UV light, but where in
the
>spectrum do they reside?  Are they hiding in the "visible" spectrum?  How
are
>the dyes made, I can't make them with additive mixing of the three
primaries.

>I haven't been able to get an answer to this question for years (well, I
just
>asked a couple people, that is the extent of my research).

>Answers/Ideas?

My understanding is that these colours actively floresce in the presence of
the UV in natural light, you can't expect to reproduce their properties with
any mix of conventional dyes.

I believe similar stuff is put in washing powder to make your wash "whiter"
and "brighter" [than what one wonders...].

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Geoff, Sysop Equinox (equinox.gen.nz) +64 (3) 3854406 [4 Lines]
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