Polycarbonate is transparent (something which can be seen through) thermoplastic. This material is tough and stable. It can resist a high temperature of 280°F and a low temperature of -40 °F. It is stain resistant and non-toxic. Polycarbonate weighs one tenth of glass.
Industries use clear polycarbonate to make eyeglasses. This is because it has a very good transparency and durability. Lenses made from clear polycarbonate can be thinner than lenses made from ordinary glass.
Companies that create electronic equipment use polycarbonate to create the cover of cell phones, laptops and other products. Although polycarbonate is non-toxic, it needs toxic chemicals during its production phase. (See, Bisphenol A).