PC Transition Lens Glasses material: the material of this lens is solid, mainly composed of polycarbonate, a thermoplastic material. Lenses can only be formed after heating, so this kind of Transition Lens Sunglasses has strong toughness and is not easy to break, so it is called safety lens. At just 2 grams per cubic centimeter, it is the lightest material currently used for Transition Lenses Colors.
Advantages: Light, safe, suitable for Frameless Eyeglasses, because it is not easy to crack;
Disadvantages: processing is difficult, the surface is easy to scratch, thermal stability is not good, 100 degrees will become soft.
