HuntingNet.com Forums - What Does a Fresnal Lens Do?

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meyerske

07-29-2007 05:26 AM

What Does a Fresnal Lens Do?

What Does a Fresnal lens do? Does it detect heat/motion?

AR Bowhunter

07-29-2007 09:34 PM

RE: What Does a Fresnal Lens Do?

I wish someone would tell us, been waiting for an answer!!

Sea Monkey

07-30-2007 03:50 AM

RE: What Does a Fresnal Lens Do?

If we're talking about the same kind of Fresnel lens, it was used on lighthouses to concentrate the beam. They are actually made up of thousands of individual pieces of glass.

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