22 Jul 2011
We are specialized in producing Meniscus Lens,Double concave lens, Planoconcave lens,Double convex lens,Planoconvex lens. Specifications Diameter 3.5~100mm Centration 2 arc minutes Flatness 3(0.5) Clear Aperture 90% Surface Quality Up to 40-20 Bevel 0.25mm at 45 deg