1pcs PMMA Round Fresnel Lens 40-100mm, Focal 60-80mm, Solar Concentrator Condenser for DIY Optics, (100mmx80mm)

Precision-molded PMMA acrylic lens delivers 92% light transmission, ensuring efficient solar concentration and bright, clear images for optical projects. Available in diameters from 40mm to 100mm with a focal length range of 60-80mm, it offers flexible options for custom configurations, prototyping or educational use. The lightweight and durable 2mm thick device withstands temperatures from -40°F to +176°F, making it suitable for both indoor experiments and outdoor solar applications. The 0.015" fine thread pitch (0.025" for the 100mm/120mm focal version) provides soft and even light refraction, ideal for capacitor systems, magnifying glasses or projection devices. Each package includes a lens, ready to use in DIY solar ovens, machine collimators or science fair demonstrations, no need for additional mounting hardware.