Originally Posted by jage
I also think the film just keeps the window intact, I'm not sure it would keep the glass from breaking in the first place.
Does plexiglass absorb UV?
If solar works on UV and windshields / autoglass cut UV then how do those "plug into your cigarette lighter, leave on your dash" doo-dads work?
My initial guess would be: Not very good.
Anybody have one? Can you measure the output behind the windshield and in open sunlight? It might be interesting to check the plastic protection film mentioned earlier also. A thin section of material absorbs less than a thicker one. How much loss? And the loss would increase as the sun angle from vertical increases. More loss when you least want it. How much panel do you have and how much power do you need?
I worked in UV optics for quite awhile. Plenty of need for UV transparent plastics (especially inert ones), but no products exist. If you could invent one, you might get rich and be able afford an SMB for each of you several homes.