where can i find fresenal lens for solar prop? Answered

Try an old projection TV. They had fresnel lenses 3' wide and can burn holes in the road 2" in diameter ! Ahhhhhhhhh ! I LIKE FIRE ! Ahhhhhhh !

Old overhead projectors (like the one shown here) usually have a small one in the base of the assembly with the lamp...

Look for a discarded projection TV. There is a large fresnel lens in the viewing screen. They make great solar concentrators. ~Bob~

I found an A4 fresnel lens in a stationary / office supplies shop.
This sort of thing

L