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

Precision-molded PMMA acrylic lens delivers 92% light transmittance, 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 setups, prototyping, or educational use. Lightweight and durable 2mm-thick devise withstands temperatures from -40°C to +80°C, making it suitable for both indoor experiments and outdoor solar applications. Fine 0.3mm thread pitch (0.5mm for 100mm/120mm focal version) provides smooth, uniform light refraction, ideal for condenser systems, magnifiers, or projection devices. Each package includes one lens, ready to use for DIY solar ovens, machine collimators, or science fair demonstrations—no additional mounting hardware required.