EISCO Optical Glass Lens, 3" (75mm) - 200mm Focal Length - Ground, Beveled Edges - Use as Top Spinning Base

Descripción

🔭 See the World Differently!

The EISCO Optical Glass Lens is a 3-inch diameter, double concave lens with a 200mm focal length, designed for educational use in physics classrooms. Made from high-quality, optically worked glass with polished beveled edges, it serves as an excellent tool for light refraction demonstrations and creative top spinning activities.