[elektro-etc] Napozás üvegen keresztül ?

[Kaczmarek Edvard]

> Viszont az uv lehet nem szorodik amig a lathato feny igen. Fenytores 

Dede.


http://www.uio.no/studier/emner/matnat/fys/FYS3610/h04/undervisningsmateriale/Moan7.pdf

Nitrogen and oxygen molecules are much smaller than the wavelengths of UV and
visible radiation and cause Rayleigh scattering. The probability that a photon
will be scattered by an angle θ with respect to its initial path is:  

Is = K * λ^-4 * sin^2 * (π / 2 - θ)

where K is a constant. 

...

With the sun at its zenith, about 10% of the total solar radiation and about
30% of UVB and UVA is diffuse. For a solar elevation angle of 20° about 20% of
the total radiation, 70% of UVA and almost 80% of UVB, is diffuse.