which material make the best lenses for sunglasses?
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Polycarbonate
Polycarbonate has excellent impact-resistance and very good optical clarity. It's affordable, lightweight and low-bulk, but less scratch-resistant. Acrylic is an inexpensive alternative to polycarbonate, best suited for casual or occasional-use sunglasses.
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Polycarbonate
PolycarbonateSo, to sum it up: Both Polycarbonate and Trivex have high-impact resistance. Trivex is stronger, but both are excellent for sunglasses and active sports. Lumina Polycarbonate and Lumina Trivex both provide full protection from the sun's harmful UVA, UVB and UVC rays.
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