rurmonas@senet.com.au
Date: 11/25/02-07:45:45 AM Z
Quoting John Prokos <johnprokos@hotmail.com>:
> I have some fairly quirky ideas, in general I am a touch crazy. Anyway, I
> was looking at the packaging on the Phillips 175 Watt Metal Halide bulb, in
> particular the warnings on the back, It says if the outer envelope of glass
> was cracked or broken that a person could get burned from short wave UV
> radiation. And that some Metal Halide bulbs were available that had an
> automatic shut off feature in case the outer glass envelope was broken,
> however this did not. This made me wonder what would happen if I
> intentionally broke the outer envelope of glass and exposed my prints with
> that bulb. Would I die quicky or slowly from noxious fumes, intense UV
> radiation, or from flying 1000 degree C. shards of glass? I am still to
> afraid to try, mostly because the bulb cost 25 bucks and if it doesn't work
> I won't be able to return it to Home Depot. Any ideas anyone?
John,
Short wavelength UV is very damaging to the eyes (so you would go blind
first). As far as I am aware, alternative printing is most sensitive
to long wavelength UV (i.e. not far out of visible range). Further
the glass in the contact printing frame will stop the short UV
getting through anyway. Finally the second glass envelope does provide
some safety if the inner glass shatters. I hope no one is ever unlucky
enough to have both envelopes fail.
Richard
--- Richard Urmonas rurmonas@senet.com.au ------------------------------------------------- This mail sent through SE Net Webmail http://webmail.senet.com.au
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