Making a glass Fresnel lens with its concentric rings requires even more work, but as the ever-resourceful [Robert Murray-Smith] shows us, a Fresnel lens can be made from far more mundane materials.

Fresnel lenses are specialized optical components with grooved surfaces instead of traditional curved ones. Owing to their unique design, Fresnel lenses are thin and lightweight, typically have short ...

Pronounced "fraynel zone." The pattern of electromagnetic radiation that is created by a transmitting station from its antenna to receiving antennas. It is in the shape of an ellipsoid, or 3D ...

Find 21 Fresnel Lenses suppliers with GlobalSpec. Our catalog includes 105,715 manufacturers, 20,956 distributors and 94,437 service providers. The GlobalSpec database includes 62,217 manufacturers ...