50mm PMMA Fresnel Lens for DIY Projector VR Magnifier(Focal Length 28mm)

50mm Diameter Optical Lens: This round Fresnel lens measures 50mm in diameter with a 2mm thickness, suitable for DIY projector, magnifier, and VR lens projects that require a compact optical component. PMMA Acrylic Material: Made of optical PMMA (acrylic) with approximately 93% light transmittance, this Fresnel lens delivers clear optical performance for hobby and experimental applications. 0.3mm Pitch Concentric Grooves: The concentric focusing Fresnel thread devise features a 0.3mm pitch, enabling precise light concentration for projection and magnification setups. Wide Operating Temperature: This optical Fresnel lens performs within an operating temperature range of -40° to 80°, making it suitable for use in varied indoor and outdoor environments. Versatile DIY Applications: Ideal for DIY projector builds, plane magnifiers, VR lens experiments, and other optical focusing projects; package includes 1PC Fresnel lens.