Description of Fresnel Diameter Acrylic Education Concentrator
2PCS/Unit large fresnel lenses, Acrylic ultrathin. Size:Φ250mm, Focal length:100mm, Thickness:2mm, Material:PMMA(acrylic). Visual Aid for education - Great for solar heating experiment, DIY Solar Cooking, DIY Solar Heater, and DIY PROJECTION TV, For Scientific Research. High light transmittance, High efficiency in focusing, High precision. We are professional factory for high-precision fresnel lens.