LITAO-XIE, Double Concave Glass Lens 100mm Diameter Optical Glass Large Optics Focal Length -300mm Biconcave Lens 1pc
HOMOCONO Double Concave Glass Lens 10cm Diameter Optical Glass Lens 300mm Focal Length Beveled Grounded Edges Easy to Clean for Laboratory and Scientific Experiments
JEWEDECO Double Concave Glass Lens for Science Education, 300Mm Focal Length Optical Glass Lens 10Cm Diameter, Bevelled Grounded Edges
Flat Convex Lens: 69mm Plano Convex Glass Element High Purity Optical Glass
TGDGFKIAS Glass Prism Optical Glass Lens, 1pc Double Concave Lens Optical Glass K9 Material Diameter 12mm Focal Length -19.3mm Prism Lens
2PC Dia.5-7mm Aspheric Acrylic Plano-convex Focusing Lens PMMA Collimated Lens
