Tag Archives: Fresnel lenses

Fresnel Lenses can be a Useful Tool for Preppers

Fresnel lenses

The Fresnel lens set in its wooden frame.

The other day a friend gave me a Fresnel lens that he removed from a projection television.  It is huge, it measures 50 inches by 37 inches.  We took and installed it in a wooden frame and have been experimenting with it.  Now many of you may be familiar with the small Fresnel lenses that come in many survival kits as a fire starter.  They measure approximately 3 ¼ x 1 ½ inches and are very close in size to a business card.

I have had small one for years in a pocket survival kit that I often carry. …

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