Detailed Product Description Optical lensPlano-convex lens, also called positive lens ... devices including telescopes, collimators, magnifiers, optical transceivers, condensers and other optical display or imaging optical systems. AR/NIR or other coatings ... :Material-------------------Fused cilica, BK7 Grade A or equivalent optical glassesDesign Wavelength------546.1nmDiameter Tolerance------±0.1mm, ±0 ...