Index : 1.59 Polycarbonate Lens Abbe Value : 31 Gravity (g/cm3) : 1.20 UV Protection (UV--A) : 390nm HC, HC/ ... T, HMC+EMI, SHMC As the largest lens manufacturer in ... , bifocal, progressive, photochromic(Grey, Brown), polarized(Grey, Brown and G-15), polycarbonate lens, tinted, (uncoated, hard coated, HMC, EMI, Super Hydrophobic) including ...