Polycarbonate was first prepared in 1953 by Dr.H.Schnell of Bayer AG, Germany and by D.W. Fox of General Electric Company, USA. This special material is an alloy of polycarbonate and metal and used in the construction of the lens barrel. If the combined lenses turn … Polycarbonate plastic contains Bisphenol A (BPA) as a key building block. Aspheric lenses have complex curved surfaces that gradually changes in curvature from the centre of the lens to the outer edge. Generally speaking, contact lenses are always corrective and manufactured according to the customer’s individual requirements, but colored contact lenses for cosmetic purposes may not be.. Aside from this, plano contact lenses need to be treated in exactly the same way as normal contacts should be: that means … 1.59 index offers optical clarity and also 100% UV protection. Conventional cover lenses are generally made of glass. A wide variety of polycarbonate raw material options are available to you, such as graphic design, none, and others. Designed for glazing and industrial uses, the Clear GP stands alone as the best polycarbonate on the market for protection against vandalism and intentional breakage. Our polycarbonate lenses have a 1.59 index which, while quite thin, is more focused on durability than lightness. Polycarbonate lenses (often abbreviated as PC), are the most common lens type and considered the industry standard. The first type of coatings that were applied to polycarbonate were so resistant to tints that obtaining a sunglass shade was almost, if not, impossible. Polycarbonate lenses are also as much as 10 times more impact resistant than plastic or glass lenses, meaning they are harder to fracture or shatter and resulting in fewer cracked or sharp broken pieces in case of an accident. To tint polycarbonate lenses one must tint the scratch coating and the better the scratch coating the harder it is to tint. Check out our guide to Nikon, Canon, Tokina, Sony or Tamron lens abbreviations next! 1.59 Index Lens Lenses with this index are made from special polycarbonate materials. However, Trivex lenses offer sharper central and peripheral vision than polycarbonate lenses, but are not as widely available in as many lens types. The pros of PC lenses is that they’re thin, light, and impact-resistant, making them … Polycarbonate. It … Place the lens of your sunglasses at a 90-degree angle to the lens of the drugstore sunglasses. It was developed in 2001 by PPG Industries as an alternative to polycarbonate. They also offer 100 percent protection from the sun's harmful UV light and are up to 10 times more impact-resistant than plastic or glass lenses. These impact-resistant lenses are a good choice if you play sports, work where your eyeglasses could easily get damaged, or have kids who are tough on their specs. Polycarbonate lenses are a good “thin” choice for prescriptions up to +/-5.00. It offers elasticity, meaning that lens elements will not warp in adverse temperatures. Polycarbonate has obvious applications for the transmission of light where the risk of impact is great: for example, automotive headlamps, security windows, motorcycle face shields and windscreens, prescription lenses, safety glasses, machinery guards, skylights, streetlamps, etc. In addition to standard Trivex®, Zenni also offers Blokz ™ Trivex ® Blokz ™ Trivex ® is a superior impact-resistance lens that is designed for all-day wear and protection from blue light. This means that they can provide 100% UV protection. Trivex lenses are made from a lightweight, impact-resistant material. If your prescription is higher than that, you would achieve a thinner and lighter lens by selecting a lens with a higher index, 1.67 or above. Ideal for Safety. While they’re not the thinnest kind of lens out there, they still retain their position as the swiss-army-knife of eyewear lenses. Polycarbonate lenses took some time to … As a result, the image you see with polarized lenses is a bit darker than usual, but objects look crisper and clearer, and details are easier to see. However, due to the requirements mentioned previously, the cover lenses are increasingly made of plastic (polycarbonate, PC). Some of the common applications are compact disc, safety helmets, bullet-proof glass, car headlamp lenses, baby feeding bottles, roofing and glazing etc. These lenses are thinner and stronger than lenses with a 1.5 index and can deal with prescriptions with an SPH correction between +/- 5.00 and +/- 4.00 and a CYL correction of +/- 3.00 and lower. And Then Came Poly. Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG). Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. Polycarbonate is still lighter, and can be made in higher index - meaning that a strong prescription lens can still be quite thin. If you're unsure whether your lenses are polarized: Take your sunglasses to the drugstore and grab a pair of polarized sunglasses from the shelf. Lesmore Polarized. Our 1.6, 1.67, and 1.74 index lenses can all be considered high index. Polycarbonate also has very good heat resistance and can be combined with flame retardant materials without significant material degradation. This high-impact sheet boasts an impact strength 250 times that of glass and 30 times that of acrylic sheeting, meaning that whatever it’s protecting is going to stay protected. The estimated dietary intake of BPA from polycarbonate is more than 4000 times lower than the maximum acceptable daily dose for BPA, established by the U.S. Environmental Protection Agency. Polycarbonate definition, a synthetic thermoplastic resin, a linear polymer of carbonic acid, used for molded products, films, and nonbreakable windows. Aspheric Lenses . Because of their resilience, polycarbonate lenses are great for kids, offering extra safety. This feature includes clear lenses. They are more than 10-times more impact resistant than your average plastic or glass lens. Plano Contact Lenses. Another example of plano lenses are colored contacts. Creators use a mold to construct the lenses in much the same way regular plastic lenses for glasses are made. The Advantages of Polycarbonate Lenses They are much thinner and lighter than lenses made from other types of plastic, meaning they are more comfortable, especially for the smaller faces of children. Since polycarbonate lenses naturally filter out UV light, they do not need any additional coatings. See more. Joshua Ho of AnandTech explains : Polycarbonate lenses were first introduced into the optical world through safety glasses. If you don’t know what type of lenses you have, they’re probably polycarbonate. Several months in the making, finally, we do a side-by-side comparison of the Trivex and polycarbonate lens materials. 1.59 Index Lens – Polycarbonate Lenses Polycarbonate lenses were initially used for safety glasses and now this material is actively used in making kids glasses, sports glasses and for almost every prescription. You can also choose from modern, industrial, and traditional polycarbonate raw material, as well as from pc polycarbonate raw material, and whether polycarbonate raw material is more than 5 years, 5 years, or 1 year. Standard polycarbonate bifocal lenses for reading and distance vision viewing means that the reading area has a half moon shape with a "flat top", in the bottow area of the lens. Meaning they do not require any other UV coatings to protect the wearer from harmful rays. With polycarbonate’s super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. The standard polycar Crystal Vision polycarbonate bifocal lenses for reading and distance vision viewing means that the reading area has a half moon shape with a "flat top", in the bottow area of the lens. When eye safety is a concern, polycarbonate or Trivex lenses usually are the best choice for your eyeglasses, sunglasses and sports eyewear.. polycarbonate lens meaning and how its different from plastic lens . Similar to polycarbonate, Trivex lenses are thin, lightweight, impact-resistant, and provide 100% UV protection. but regular plastic lens can break easily, however it also depend on the type of frame. Whereas conventional lenses have a front surface that is spherical, meaning it has the same curve across its entire surface, much like a football. Polycarbonate Lens. This must be free of streaks and bubbles. The lenses will block out all the horizontal light waves bouncing off a smooth pond or a shiny car hood, for instance. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. They’re light weight means that they absorb energy without fracturing, giving them up to 10 times the impact resistance of other plastics. Compared with polycarbonate lenses, Trivex® is a premium material that provides crisper vision and is 10% lighter. Polycarbonate lenses are a very common choice for prescription sunglasses. Story: Say hello to the Lesmore.As the name invokes, it’s a perfect combo of less and more, meaning you get a frame free of glitz and chock full of things you really need—like a modern silhouette, polycarbonate lenses and an array of colors to … When it comes to lenses, you’ve got options: tinting, mirror coating, gradient, transition, polarized or non-polarized, and, of course — lens material. Looking for the abbreviation of PolyCarbonate? This is unlike CR-39, which does not fare so well with higher prescriptions. polycarbonate lens are also known as impact resistance lens, polycarbonate lens does not break easily. As a manufacturer for polarized lenses,we got many questions from our customers about the advantages and disadvantages of different lens materials.Below are my personal opinions to … On the flip side, polycarbonate does not conduct heat well, meaning it can actually affect the performance of the phone under a heavy workload. The Web's largest and most authoritative acronyms and abbreviations resource. Trivex lenses are made from a urethane-based monomer. These lenses are super-thin but are also more expensive than the polycarbonate option. Polycarbonate, unfortunately, is very resistant to tints. Polycarbonate lenses already provide 100% protection from the UV rays of the sun. PC is commonly used for plastic lenses in eyewear, in medical devices, automotive components, protective gear, greenhouses, Digital Disks (CDs, DVDs, and Blu-ray), and exterior lighting fixtures. Find out what is the most common shorthand of PolyCarbonate on Abbreviations.com! For some clarity on which lens material is best for you, let’s have a little face-off between the generations-old glass and the (relatively) young upstart polycarbonate. Trivex ® Lenses. Our 1.6, 1.67, and 1.74 index lenses can all be considered high index other coatings!, 1.67, and provide 100 % protection from the UV rays of the sun CR-39 which... 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