[Radiance-general] Re: trans dashboard widget

[Lars O. Grobe]

Hi!

> If you want the manufacturer to provide test data there is a european 
> standard that describes a blind measurement procedure for hemispherical 
> transmission.  I don't know the standard number, but perhaps someone 
> else on the list knows what it is?  This procedure only measures values 
> for normal incidence though.

You would probably end up doing a full measurement of the bidirectional 
reflection / transmission distribution. Then you could use the data to 
e.g. fit a trans material to it. The normal incidence alone is not 
really suitable to reflect the incident distribution for a window...

Cheers, Lars.
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