From: Michael M. Butler (butler@comp-lib.org)
Date: Fri Dec 01 2000 - 10:24:06 MST
I have seen NIR laser light *diffuse reflections*. I don't make a habit
of it, but I can. 830 nm for sure, 850-860 possibly (that diode was not
well characterized). I would call it "dull" rather than dim, although it
is that, too.
I can also see what I think is a UV tail in very bright rainbows, though
I am not absolutely sure it's not some refringence effect or something.
Eugene.Leitl@lrz.uni-muenchen.de wrote:
> In fact some (imo rather foolish) people have purported
> to see a very dim red when looking into an operating NIR laser diode
> (don't do it at home, kids), at least for a while. I'm told an UV LED
> (also not healthy to look into) also projects a sort of sickly
> purplish glow (and making mineral-filler paper fluoresce),
<snip>
> (That sunrise is sooo ultraviolet... wow, man).
<snip>
> Say, that's a rather large soapbox.
And an excellent one! 'gene, you rarely disappoint.
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