Doug Bischoff |
July 11th, 2005 09:56 AM |
Nope
Quote:
Originally Posted by Alex Barabas
Shouldn't just plain glass absorb a lot of UVs?
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Nope: plain glass doesn't absorb much if any UV at all.
I work in a printing shop: if we leave a UV light-sensitive plate out in sunlight coming through a window it'll be exposed in no time.
We put the same thing in front of a 2-way UV filter and it can sit there all day.
Glass can be coated to absorb or block UV transmission, but there are (at least) 2 types of UV: UV-A and UV-B. Some glass gets both, but most get just one or the other.
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