Wed, 21 Sep 2005
Car windows polarized
Do you have a polarizing filter or polarizing sunglasses? It is interesting how many unusual things can be seen through the polarizing filter.
I have found that when you look at car windows through the polarizing filter, strips, spots, or chequered pattern can be seen. On most cars only the rear window shows this behaviour, altough I have seen an old Wartburg, which had this pattern on all windows, including the windscreen.
Does anybody know how this pattern is created, and why only the rear windows have this? Does it have something to do with rear window heating/defrosting?