Glass and transparent plastics, especially acrylic resins, have long been used in the lighting industry for various aesthetic and functional purposes. As the industry has evolved, light-emitting diode (LED) lighting has moved from niche applications to more mainstream commercial and residential use, and there has been a growing interest in plastics — especially polycarbonate — because of the properties of the material and the versatility it provides. Polycarbonate is now seen in a variety of areas in LED lighting including lenses, optics, covers, channel letters, sign facing, globes, and light diffusers.
