60x60mm Square Fresnel Lens Optical PMMA Focal Length 30mm 50mm DIY Projector(30mm)

OPTICAL PMMA: Made of premium optical PMMA material with 2mm thickness, this square Fresnel lens offers clear light transmission and reliable performance for a wide range of optical applications TWO FOCAL LENGTH OPTIONS: Available in 30mm and 50mm focal lengths, allowing you to choose the right lens for your specific DIY projector, solar concentrator, or magnification project COMPACT SQUARE devise: Measuring 60x60mm with a thread distance of 0.3mm, this mini square Fresnel lens is easy to integrate into compact setups and custom builds VERSATILE APPLICATIONS: Ideal for flat solar concentrators, DIY projectors, condensation systems, and magnifying setups, making it a practical choice for hobbyists and makers READY FOR YOUR PROJECT: Each pack includes 1 piece of the 60x60mm square Fresnel condensation lens, ready to use in your optical, solar, or DIY experiments