200mm Round Acrylic Fresnel Lens, 350mm Focal Length Concave Magnifier for Wide Field LED Optics

Precision-molded acrylic Fresnel structure delivers a wide field of view with a focal length of -350mm, ideal for beam expansion, projection, and optical bench experiments. High light transmission of 93% ensures minimal loss in brightness, making it suitable for LED light shaping, stage lighting, and solar concentration applications. Ultra-lightweight at just 65g with a slim 2mm profile, this lens is easy to mount, handle, and integrate into custom optical setups or educational demonstrations. Threaded outer edge allows secure fitting into standard lens holders or custom frames, reducing stray light and simplifying alignment in optical assemblies. Made from durable acrylic, this lens resists chipping and scratching, offering a safe, cost-effective alternative to glass for prototyping, hobbyist, and classroom use.