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IPU 40285 Version E Jan 2013
6
Figure 5 IWI 5520 15mm Window
Figure 6 IWI 5521 45mm Window
Both the 15mm and 45mm windows have an uncoated area on the inside. (Labeled side 2 in
Figure 5 and
Figure 6
). The other difference between the inside and the outside is that the
outside of the window is dark in appearance; whilst the inside shows rainbow hues when the light
strikes it at different angles.
