When Were Polycarbonate Lenses Invented?
When Were Polycarbonate Lenses Invented? Polycarbonate lenses were introduced sometime in the 1980s by the Gentex Corporation. This new eyeglass lens material had a high index of refraction, making it to be the lightest and thinnest lens material available then. When did polycarbonate lenses start? Glasses with polycarbonate lenses were first developed in the 1980s,