Sunday Optics manufacture spherical lens include: plano convex lens, plano concave lens,double convex lens, double concave lens, meniscus lens, achromatic doublet lens. Material:H-K9L JGS1 Corning 7980, Sapphire, CaF2, Silicon Germanium Size:0.1-600mm+/-0.01 Surface quality:10-5 Flatness:1/10lambda Centeration.
