... Optics is the only Chinese listed manufacturer in the optical lens industry. In 2009, according to Chinese customs statistics, we ... produce single vision, bifocal, progressive, photochromic(Grey, Brown), polarized(Grey, Brown and G-15), polycarbonate, tinted, RX lens(uncoated, hard coated, HMC ... .499, 1.56, 1.60, 1.67, both in finished and semi-finished. At the same time, we have a leading lab with ...