1941 A DIY Fresnel Lens From Tube
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How To Make Solar Concentrating Mirrors (super HOT focal point)
17:47
Giant Resin Magnifying Lens?!
10:59
Fresnel Lens Manufacturing - 2018 Michigan Lighthouse Alliance Conference
6:02
Different Fresnel Lenses, Different Capabilities - Different TVs
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Burning stuff with a giant fresnel lens + how a DLP projector works
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Make Your Own Optical Lenses
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The Fresnel Lens: the Invention That Saved 1000 Ships
7:53