30-80mm PMMA Fresnel Lens Threaded Capacitor for LED Projector, DIY VR Optical (42mmx28mm)

Precision Threaded Concentric Device: 0.025mm pitch (0.025" for focal 100mm/120mm) ensures uniform light refraction and beam control for precise optical output. Wide size range from 30mm to 80mm: choose the diameter for LED spotlights, stage lights, flashlights, fishing lights, DIY projectors, VR headsets or optical experiments. 92% High Transmittance PMMA Material - Acrylic construction delivers clear, vivid images with minimal light loss, ideal for magnification and projection applications. Extreme Temperature Tolerance - Works reliably from -40°F to +176°F, suitable for indoor and outdoor lighting fixtures and experimental setups. Versatile optical applications: adjust beam angles, improve light concentration, magnify fine details or support research and product development in optics.