PMMA Round Fresnel Lens 40-100mm, Focal 60-80mm, Solar Concentrator Capacitor for DIY Optics, 1 Piece (42mmx60mm)

Precision molded PMMA acrylic lens provides 92% light transmission, ensuring efficient solar concentration and bright, clear imaging for optical projects. Available in diameters from 40mm to 100mm with a focal length range of 60-80mm, offering flexible options for custom configurations, prototyping or educational use. The lightweight, durable 2mm thick device withstands temperatures from -40°F to +176°F, making it suitable for indoor experiments and outdoor solar applications. The fine thread pitch of 0.3 mm (0.5 mm for the 100 mm/120 mm focal version) provides a soft, uniform light refraction, ideal for condenser systems, magnifiers or projection devices. Each package includes a lens, ready to use for DIY solar furnaces, machine collimators or science fair demonstrations — no additional mounting hardware required.