VIPER Tactical Protective Goggles
The VIPER Tactical Wrap Around Stealth Goggles have an elastic headband
and foam backed for close fitting.
Polycarbonate (aka Plexiglas) tinted lens provides both shatterproof eye
protection and UV protection against harmful sunlight.
Ideal for Paintball, AirSoft, shooting and other outdoor sports.
Complete with drawstring closure soft carry bag.
Polycarbonates are a particular group of thermoplastic polymers. They
are easily worked, moulded, and thermoformed; as such, these plastics are very
widely used in the modern chemical industry. Their interesting features
(temperature resistance, impact resistance and optical properties) position
them
between commodity plastics and engineering plastics.
Polycarbonate is a very durable material, and can be laminated to make bullet-
proof "glass", though “bullet-resistant” would be more accurate.
Although
polycarbonate has high impact-resistance, it has low scratch-resistance and so
a hard coating is applied to polycarbonate eyewear lenses. The characteristics
of
polycarbonate are quite like those of polymethyl methacrylate (PMMA;
acrylic), but polycarbonate is stronger and more expensive. This
polymer is
highly transparent to visible light and has better light transmission
characteristics than many kinds of glass. CR-39 is a specific polycarbonate
material — although it is usually referred to as CR-39 plastic — with good
optical and mechanical properties, frequently used for eyeglass lenses.
