50mm Round Fresnel PMMA Acrylic Focal Lens 28-100mm for DIY LED Light Projector(70mm)

High transparency PMMA acrylic material provides 92% light transmittance, ensuring bright and efficient light concentration for LED applications, stages and flashlights. Threaded surface with 0.3mm pitch and 2mm thickness provides precise radius control and easy mounting in optical housings or DIY frames. The versatile range of focal lengths from 28mm to 100mm is compatible with various capacitor, magnification and projection configurations, including VR glasses and projectors. Wide operating temperature range from -40 °F to +176 °F makes it suitable for indoor and outdoor optical devices, experiments and product development. 50mm diameter flat frame fits standard media - ideal for magnifying small details, optical research and educational science projects.