One may ask the question...what is a Trivex lens?
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Advancements in lens materials in the last half of the 20th century allowed eyecare professionals to offer their patients higher performing lenses than ever before. The introduction of plastic lenses(CR-39) in the 1960s kicked off the revolution by presenting a lighter weight and thinner option over glass lenses.
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Polycarbonate, introduced in the ‘80s, offered eyecare professionals an impact-resistant option for their patients, although without the optical performance of CR-39 or glass. Advancements continued, and within the past decade, dozens of plastic lens materials in higher indices have enabled thinner and lighter lenses thanever before, though none exhibited the impact resistance of polycarbonate.
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Recently, PPG Industries introduced Trivex® tri-performance lens material, an optical polymer that offers the impact resistance of polycarbonate with excellent optics on par with CR-39 and glass. Additionally, lenses made from the material can be thin, because the material is so durable, and are ultra-light weight, because Trivex is the world’s lightest lens material. The combination of thes properties are:
Recently, PPG Industries introduced Trivex® tri-performance lens material, an optical polymer that offers the impact resistance of polycarbonate with excellent optics on par with CR-39 and glass. Additionally, lenses made from the material can be thin, because the material is so durable, and are ultra-light weight, because Trivex is the world’s lightest lens material. The combination of thes properties are:
• Excellent optics
• Impact resistance to the highest standard
• Ultra-light weight and thinness
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Trivex material is not simply a variation of an existing material. It is a completely new optical monomer. The monomer was first developed by the defense industry as “visual armor” for use in helicopter canopies, and was adopted for use in ophthalmic eyewear by PPG scientists. The Trivex lens polymer is extremely light weight on a molecular level, giving the material a specific gravity of 1.10. This enables Trivex material to be the lightest commercially available lens material, significantly lighter than other materials traditionally valued for their light weight, such as polycarbonate (specific gravity 1.22) and high-index (specific gravity 1.30 to 1.40).
• Impact resistance to the highest standard
• Ultra-light weight and thinness
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Trivex material is not simply a variation of an existing material. It is a completely new optical monomer. The monomer was first developed by the defense industry as “visual armor” for use in helicopter canopies, and was adopted for use in ophthalmic eyewear by PPG scientists. The Trivex lens polymer is extremely light weight on a molecular level, giving the material a specific gravity of 1.10. This enables Trivex material to be the lightest commercially available lens material, significantly lighter than other materials traditionally valued for their light weight, such as polycarbonate (specific gravity 1.22) and high-index (specific gravity 1.30 to 1.40).
