Optical Lens Set, 2", 6-Piece, Convex and Concave Capacity_25000mL Low temperature gradient - can

Low temperature gradient - can withstand high temperatures & thermal shocks

and accessories for comprehensive laboratory setup

5-inch maximum opening for glassware support

illustrating additive color mixing

Optical Lens Set, 2", 6-Piece, Convex and Concave Capacity_25000mL Low temperature gradient - canSPHERICAL Each lens is spherical in shape and measures 2" (50mm) in diameter FOCAL LENGTH VARIETY Converging and diverging focal lengths in 200mm, 300mm and 500mm OPTICALLY WORKED GLASS Made of high quality, optically worked glass. Highly polished with ground edges GREAT FOR PHYSICS CLASSROOMS This optically true lens set is excellent for physics classroom demonstrations in optics and light refraction Set of Six Optically True Concave & Convex Lenses