Giant Fresnel Lens

From: M & G O'Brien (
Date: Sat Oct 03 1998 - 14:33:01 PDT

My name is Greg O'Brien and I am interested in finding who manufactures
the largest fresnel lenses. I have an idea to use it for live theater
and for this application would need a 6' X 6' lens. I am curious if the
effect I imagine is even possible or would the focal point be
prohibitively distant for this size lens? In fact, I don't really know
anything about how these lenses work except what I learned here today.
Thanks for any info you can forward. Greg O'Brien

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