Plastic Kicks Glass
Well.......sometimes anyway! And when you combine them, as in the picture above, you can achieve some pretty amazing results! Glass has some advantages over plastic. It is far more resistant to heat, does not outgas, has a significantly larger range of refractive index and Abbe values, does not exhibit “knit lines”, is able, with care, to hold better surface power and irregularity specifications than plastic in certain surface forms, and has less haze in very thick sections
