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Comparison of Lenses for Solar Heating, Double-Convex, Plano-Convex, Double Concave, Plano-Concave - YouTube
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Double Concave Lens, 100mm Focal Length, 2" (50mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
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Lenses. Diverging and Converging Lenses Double Convex lenses focus light rays to a point on the opposite side of the lens. Double Concave lenses diverge. - ppt download
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Double Concave Lens, 150mm Focal Length, 1.5" (38mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
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Double Convex Lens, 50mm Focal Length, 2" (50mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
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United Scientific LCC504 Double concave lens, 50mm dia/ 100mm fl, each | Tools - Certified Material Testing Products
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