"Fred Cisin (XenoSoft)" wrote:
>
> > > >A related tool would be a scanner and Adobe Photoshop. As long as it
> > > >doesn't have chips that the scanner will erase you
> > > Huh? Scanners have little fluorescents in them, not UV lamps...
>
> Could somebody please explain to me how flourescent lamps work?
> They put out a LOT of UV light.
> So much so, that I thought that the name implied that they operated by a
> coating that flouresced under UV.
That's certainly the case with most of the beasts. They are (or perhaps
were -- I don't make a habit of keeping track of lamp technology)
mercury gas discharge tubes -- heaters vaporize mercury, you dump current
through the tube (using the ballast to keep the tube from appearing as the
dead short it is) and it emits in the UV range, which in turn excites the
phosphor coating of the tube which emits in a narrow fraction of the
visible spectrum...
--
Chris Kennedy
chris_at_mainecoon.com
http://www.mainecoon.com
PGP fingerprint: 4E99 10B6 7253 B048 6685 6CBC 55E1 20A3 108D AB97
Received on Thu Dec 07 2000 - 18:29:22 GMT