Re: good uv light meter



On Sat, 29 Dec 2007 22:24:16 -0800 (PST), Barry Cense
<barry_in_boston@xxxxxxxxxxx> wrote:

On Dec 28, 4:32 pm, ChrisW <san...@xxxxxxxxx> wrote:
Anyone know of an accurate uv light meter for measuring through
eyeglasses?

Try a UV power meter: http://www.google.com/search?hl=en&q=uv+power+meter

But if the glasses are made from polycarbonate, there should be no UV
transmission.

The OP wants to be accurate.

Absorption is proportional to some absorption factor times thickness
yielding exponential decay of intensity and the result will
theoretically never be zero, slowly approaching the lowest
measurable limit of the detector.

w.
.


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