20mm/30mm Round Fresnel Lens Focal Length 50mm PMMA Acrylic Capacitor for DIY LED Light Projector(20mm)

High optical clarity PMMA material with 92% light transmittance, ensuring efficient beam concentration and minimal loss for LED, stage or flashlight applications. The threaded edge device (0.3 mm pitch) allows for secure mounting in custom housings, ideal for light groups, solar concentrators or lamps devices. The versatile 50mm focal length allows for use in DIY projectors, VR headsets, magnifying viewers and detailed observation tasks with image reproduction. Durable acrylic construction withstands temperatures from -40 °F to +176 °F, suitable for optical devices and experiments both indoor and outdoor. Compact round profile (diameter 20mm or 30mm, thickness 0.3cm) fits standard optical media, perfect for prototyping, teaching laboratories and product development.