Double Convex Glass Lens Optical Lens for Scientific Experiment Laboratory 30mm Diameter 50mm Focal Length

Please kindly noted that this item is sold by third-party sellers from Joybuy marketplace.Description This product is a double convex lens made of high-grade glass reliable and built to last. This convex lens guarantees practicality through high performance. It s the perfect accessory for science experiments suitable for science experiments and classroom presentations. Nice gift for students and teachers who love physics and optics. Features -Material: Glass -Color: Transparent -Diameter: 3 cm / 1.18 inch -Focal Length: 5 cm / 1.97 inch -Double convex lens: The biconvex lens is used to demonstrate optical principles and effects perfect accessory for scientific experiments. -Theoretical principle: Made according to the principle of refraction of light it s thicker in the center and thinner at the edge. -Glass material: Made of polished glass with smooth edges realistic surface and clear vision convenient to use. -Extensive use: As an experimental prop in physics classrooms used for experimental display optical research etc. -Science education gift: This lenticular lens is a practical science and education gift for students and teachers who love physics and optics.