Square Fresnel Lens 30x30 40x40 50x50 100x100mm PMMA Acrylic DIY Projector Solar Condenser Magnifier(100x100mm-FL90mm)

Precision-molded PMMA acrylic Fresnel lens with 92% light transmittance, offering clear magnification and efficient light condensation for DIY projectors, solar concentrators, and optical experiments. Available in multiple sizes (30x30mm, 40x40mm, 50x50mm, 100x100mm) with focal lengths clearly marked, allowing flexible integration into custom lighting, stage lights, flashlights, and fishing lamps. Threaded surface devise (0.3mm or 0.5mm pitch) helps reduce glare and improve light diffusion, while the flat 2mm thickness ensures easy mounting in various frames or housings. Durable acrylic material withstands temperatures from -40°C to +80°C, making it suitable for both indoor and outdoor applications, including solar collection and heat-exposed environments. Ideal for educational physics experiments, optical research, and product prototyping, this single-piece lens delivers consistent performance and reliable optical characteristics for hobbyists and engineers.