User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax)
Roger Breton wrote:
suspicion, I did. The recommended procedure is to measure the illumination
'indirectly' by aiming it at some surface of know spectral reflectance.
A good material for this indirect method is white expanded polystyrene foam.
Foam with a fine structure is usually better. Compared to many other
readily available materials, it seems to have a flat reflectance right
up to the U.V.
