Double Convex Glass Lens, 50mm Diameter

This round double convex optical glass lens measures approximately 2" (50mm) in diameter and 15.5mm thick, with a 50mm focal length. Because the lens is manufactured for educational use, exact thickness may vary slightly from piece to piece and minor cosmetic imperfections may be present that do not affect optical function. Well suited to physics classroom demonstrations in optics, including image formation, ray tracing, and focal-length measurements.