Polycarbonate Trivex

Just like polycarbonate, Trivex had not been originally developed to be used in eyewear. It was developed keeping in mind the need for durable military jet windshields along with other similar military applications. In the year 2002, PPG industries developed a chemical process with material to be specifically useful for eye lenses.

• These vision experts ensure this content is fact-based and up-to-date.
• He material that a lens is manufactured has little impact on the corrective power of the lens, but it can have a significant impact on lifestyle.
• Polycarbonate lenses are available in a wider variance of lens designs (e.g., progressive lenses and other multifocals) than Trivex lenses.
• However, glass lenses are heavy, thick and dangerous if broken and cannot be used in certain frame styles.

Whether you’re climbing Mount Everest or mountain biking in Colorado, you are going to need sunglasses that can keep up with you. Produced by PPG Industries in 2001, Trivex lenses are lightweight and many more impact-resistant than regular plastic or glass lenses. High index lenses provide a thinner lens but usually have lower abbe values. The Abbe value determines to a big part the optical integrity of the lens. The benefit of Trivex over polycarbonate, is its higher Abbe value of 45, making it optically superior. As the eye comes with an Abbe value of around 45 – 50, Trivex’ properties are perfectly matched to the eye.
With an increased index of refraction and lower specific gravity, polycarbonate lenses are thinner and lighter than their plastic and glass counterparts. Inherent UV protection and wide product availability also donate to its popularity.

Trivex Lenses

Flexible spending accounts , health savings accounts , and out-of-network vision insurance plan can all be utilized towards awesome new prescription sunglasses, eyeglasses, and goggles. Choosing a small lens size frame is the biggest determinant of lens thickness and weight! Smaller frames also reduce the amount of lens distortions/aberrations. Due to the density of the high index plastic-type material it isn’t usually the lightest material though it is thinner. Sports sunglasses have an attachment for prescription lenses behind the sunglass lens, and so are designed for intense sports use.
Polycarbonate lenses have an increased index of refraction and in high prescription powers will be noticeably thinner than Trivex lenses. Rimless frames tend to be more expensive than full-frame glasses. Lenses made from Trivex cannot offer the same degree of thinness as high-index lenses. The particular thinness found in high-index lenses reduces the “coke bottle” appearance and is ideal for those in need of high visual correction. Specific gravity describes the ratio of density of any given material compared to that of a reference substance.

Seven years ago we had a newcomer to the lens material arena. Trivex material supplies the perfect combination of optical quality, lightweight comfort, strength and protection—the critical performance characteristics needed in everyday living. Lenses will be the best lenses in the sport, fishing, and active lifestyle eyewear industry.

Pros Of Trivex Lenses

Specific gravity or density of a material is its weight expressed in grams per cubic centimeter. The precise gravity of polycarbonate is 1.20 and Trivex is 1.11. Trivex is really a lighter-weight material in this regard and the lightest lens material on the market.

Trivex has a high Abbe value that offers clean, sharp vision. This is often more important for those whose prescription powers are stronger but who don’t desire to sacrifice visual clarity. In the United States, the usage of Trivex as glasses material is continuing to grow in popularity. Lenses made from Trivex material match the same safety standards as those made from polycarbonate.

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Depending on the degree of chromatic aberration, images viewed through eyewear may appear more or less distorted. Polarized lenses, photochromic lenses and most sunglass lenses. Finally, when comparing the cost of Trivex to polycarbonate, be sure to are comparing apples to apples. If you are looking at a spherical polycarbonate product, compare it to a spherical Trivex product. You’ll likely discover the difference to be less than you might think.
Vertically polarized lenses decrease bright glare and reflections by blocking horizontal polarized reflected light. Polarized lenses have already been used by fishermen for years to better deal with a bright light being reflected off the water and to see deeper into the water. Unlike most polycarbonate lenses, Trivex lenses are internally stress-free. Because of this such lenses have less potential for breaking when under great pressure, like from thick frames. Those who desire to avoid scratches on their eyewear can require an anti-scratch coating on this type of plastic-type material.