We did experiments at uni on sterilising things. UV
only kills microbes on a flat surface, and won't
penetrate glass or even plastic very well. Some people
say you can get sunburn through a closed car window,
but I have yet to see the evidence. I think the warmth
of the sunlight will in fact encourage the fungus to
grow.
Jody.
> Probably, but window glass is not an efficient
> transmitter of UV. I'm not
> sure how good the lens glass is at UV transmission
> either. No doubt some of
> the beneficial effect comes from the rise in
> temperature within the lens,
> along with this lowering the humidity within the
> lens.
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