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Polycarbonate lenses are made from a similar material to that of bulletproof glass, these lenses are 10 times more impact resistant than standard plastic lenses however this material is relatively soft, subsequently polycarbonate lenses need a scratch-resistant coating to prevent surface scratches.
We also include a scratch resistant coating and UV400 treatment FREE OF CHARGE. Polycarbonate is a thermoplastic material which is produced from small pellets, these pellets are heated to melting point, from here this liquid polycarbonate is then injected into lens molds by a process known as injection molding. Most other plastic lenses are made from a cast molding process, where a liquid plastic material is baked for long periods in lens forms, solidifying the liquid plastic to create a lens. |
5 Lastest Threads by Natalya Eyeglasses
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Prescription Lenses | Natalya Eyeglasses | 0 | 454 | 09-23-2010 08:06 PM |
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Prescription Lenses | Natalya Eyeglasses | 0 | 333 | 09-23-2010 08:04 PM |
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Prescription Lenses | Natalya Eyeglasses | 0 | 240 | 09-23-2010 08:03 PM |
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Prescription Lenses | Natalya Eyeglasses | 0 | 282 | 09-23-2010 08:02 PM |
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Prescription Lenses | Natalya Eyeglasses | 0 | 310 | 09-23-2010 08:01 PM |
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