Polycarbonate is any of a group of extremely tough polyester plastics. Polycarbonates provide excellent impact strength and heat resistance. They are naturally transparent. However, they can be dyed easily to produce a wide range of colors that may be transparent, translucent, or opaque. Products made from polycarbonates include automobile headlamps, baby bottles, camera parts, compact discs, computer housings, and protective eyewear.