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Polycarbonate Lenses – Tough Stuff Created To Protect Your Eyes

Posted in Discussions by thotrther on the July 28th, 2011

Polycarb has been among the best items of contemporary technology. It’s a shock-resistant plastic. In case your youngsters put on glasses, you get the scenario all too well. Polycarbonate lenses are the standard for all lenses in terms of impact resistance. You will find them in security glasses, sports activities goggles and most youngsters’ eyewear. Polycarbonate lenses turn up in sun glasses, particularly those that use UV filters as a way to protect the eyes from ultraviolet and other harmful rays. Just add the polarized feature to help to cut down onglare. The near indestructibility of polycarbonate is why mothers and fathers like them a lot.

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The historical past of polycarbonate

This material got here right out of the arms race when it was used as a transparent plastic alternative for tempered glass on apace rocket capsules and fighter planes. Nevertheless, that is not all; the material had one further property that made it perfect for its most common use today. These lenses give the wearer 100% ultraviolet ray shielding. They offer nice protection from dangerous sun’s rays. Though they have been in constant use by NASA and the army for decades, polycarbonate lenses had been lately introduced to the public in the 1980s.

These lenses are sometimes 20% thinner and lighter than other plastic CR-39 lenses and have much better optical properties.They arelight-weight and a type of hi- index lens or a thin lens (so your glasses do not look very thick). Optical makers can shape the lenses into distinctive shapes or drill holes through them for specialty eye wear, as they are far lesslikely to crack. This makes it an important option for everyday eye wear as an example, rimless and semi-rimless versions.

You might also need to know about sunglasses.

Vogue designers enjoy this substance as a result of it durable nature allows manufacturers to work with it in distinctive ways. They’ll shape polycarbonate, drill via it and benefit from its dominant qualities. Rimless glasses still are strong and eye wear can take on quite a lot of distinctive shapes and designs.

Built tough

Polycarbonate lenses are the most well-liked lenses materials on the market due to its manufacturing process. The majority of plastic lenses utilize a solid molding process. This is when a liquid plastic material goes by a baking course of for lengthy durations, till the liquid plastic solidifies into a lens.

Polycarbonate is a thermoplastic materials produced from small pellets. Due to this fact, the earliest phase of polycarbonate lenses begin from a solid source, eliminating the cast molding process and instead use a course of known as injection molding in which the pellets are heated to its melting point. Once it’s in liquid kind, the polycarbonate is quickly injected into lens molds. In a matter of minutes, they compress the lens molds in hi- pressure and funky them to kind the final lens product.

Universally accepted

Polycarbonate lenses are still very fashionable with consumers. The lenses are moderately priced with hi-shock-resistance and strength, a hi index of refraction, and low weight as in comparison with typical glass or plastic lenses. These lenses are good for people with very robust prescriptions, sports players, children, anyone who desires something light-weight and all people who’re security conscious. With built in UV safety and the application of a basic scratch protection coating, this lens is really useful to almost all individuals.

For a long time, polycarbonate lenses have been an ideal materials for manufacturing optical lenses. This modern compound has supplied unrivaled safety in quite a lot of eye wear merchandise from safety glasses for builders, helmet visors for astronauts and jet pilots to tough wear-resistant lenses for schoolchildren. Whether or not you need corrective glasses

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