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Sunglasses are a great way to protect your eyes from the sun’s harmful ultraviolet (UV) rays. But to get the most out of your sunglasses, you need to choose the best lens material for your type of sunglasses. Different materials have different benefits, so it’s imperative to understand the different types of lenses and what they can offer.
What are the Different Types of Sunglass Lens Materials?
Polyamide
Polyamide is the premium option for sunglass lens material and Sunglass Fix lens of choice. Even though it is the most expensive compared to glass, it has nearly the same optical clarity, it is shatterproof and it’s flexible enough to self install into sunglasses.
Glass
Glass is one of the best sunglass lens materials. It refracts light more efficiently than other alternatives, such as plastic, and offers an incredible optical experience. It is also the most scratch resistant and effectively filters UV light than other materials. While it is the best lens material for sunglasses, glass is heavier, costlier, and prone to cracking.
Polycarbonate
This sunglass lens material provides optimal impact resistance and excellent optical clarity. This has made polycarbonate the standard material for safety, sports, and children’s eyewear. Polarized polycarbonate lenses are lightweight and affordable but less scratch- resistant.
AC Lenses
Acrylic lenses are a cheaper alternative to polycarbonate. These types of sunglass lens material are designed for your occasional or casual use of sunglasses. They are optically less clear than glass and polycarbonate lenses and have some image distortion.
CR-39
An abbreviation for Columbia Resin #39 CR-39, sunglass lenses have gained massive traction since their introduction in 1947. They are affordable, boast excellent optical clarity, are more resistant to radiation, aging, material fatigue, and chemicals, and are not likely to shutter. CR 39 polarized lenses are also lighter and easy to tint.