what are polycarbonate composite lenses

Polycarbonate - Wikipediapolycarbonate is a durable material. Although it has high impact-resistance, it has low scratch-resistance. Therefore, a hard coating is applied to polycarbonate eyewear lenses and polycarbonate exterior automotive components. The characteristics of polycarbonate compare to those of polymethyl methacrylate (PMMA, acrylic), but polycarbonate is stronger and will hold up longer to extreme temperature. polycarbonate is highly transparent to visible light, with better light transmission ...【Get Price】

Polycarbonate vs. Trivex Eyeglass Lenses - Which Is Right for You?When eye safety is a concern, polycarbonate or Trivex lenses usually are the best choice for your eyeglasses, sunglasses and sports eyewear. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. 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. This combination of lightweight comfort, UV protection and impact resistance also makes these lenses an ...【Get Price】

Lens Materials | The Vision Councilcomposite. Benefits: Varied materials; thin, durable lens. composite lenses incorporate polycarbonate, Trivex , and other ophthalmic materials. Designed to accommodate most eyeglass wearers, lightweight composite lenses are compatible with most protective treatments, including no-glare, photochromic and scratch-resistant coatings. Trivex lenses are virtually weightlessan attractive quality for those who wear glasses all day long. They are similar to polycarbonate varieties in ...【Get Price】

Polycarbonate Lenses are the Most Impact Resistant Lensespolycarbonate lenses are durable, lightweight and provide 100% UV protection. Learn how the right lens coatings and frames can enhance your polycarbonate lenses.【Get Price】

Transitions Signature VII Polycarbonate Composite Multifocal LensesTransitions Signature VII polycarbonate composite Multifocal lenses are now available from Younger Optics.【Get Price】

Eyeglass Basics - AllAboutVision.comMulti-colored inlays, composite materials, designer emblems, and enhancements such as insets of precious stones may also be found in popular frame styles. Rimless styles have become more popular in recent years as an understated way to wear eyeglasses without obvious frames. Rimless styles mainly involve attaching plastic or metal temples directly onto the lenses rather than onto a frame. New eyeglass frame styles continually are being announced. Innovations include wood ...【Get Price】

News - Younger OpticsDespite growing demand for progressive and digital designs, there is still a significant demand in the market for segmented lenses, said Catherine Rauscher, global director for lenscaster partners, Transitions Optical. what is unique about this product? Younger Optics and Transitions Optical have developed a polycarbonate composite lens that incorporates a thin photochromic front surface bifocal or trifocal layer made of Trivex<sup> </sup>resulting in a lens delivering Transitions Signature&nbsp;...【Get Price】

Polycarbonate vs Glass Lenses | Revant Blog | Revant Optics19 Oct 2015 ... polycarbonate vs glass lenses what are the pros and cons to each lens type and what choice is best for your sunglasses.【Get Price】

Polycarbonate lenses - All About VisionIf your child needs prescription eyeglasses, keeping his or her eyes safe should be your first priority. Glasses with polycarbonate lenses offer the highest degree of protection to keep your child's eyes out of harm's way while providing clear, comfortable vision. The polycarbonate material used for eyeglass lenses was developed by the aerospace industry for use in helmet visors worn by astronauts. Today, because of its lightweight and protective features, polycarbonate is used for a&nbsp;...【Get Price】

PolarizedPlus2 Lens Technology | Maui JimPolarizedPlus2 technology goes beyond shielding your eyes from glare and harmful UV to reveal and enhance the world's true vivid colors in detail【Get Price】

Which Prescriptions Go With Which Lenses? | Zenni Optical21 Feb 2014 ... Also free with single-vision prescriptions is the 1.57 mid-index lens. This lens is often described as polycarbonate composite, because in addition to polycarbonate the lens is composed of other polymers and resins that keep the lens thinner than the 1.50 lens. Its range is -4.00 /+2.00 or lower on the SPH and +/- 6.00 or lower on the CYL. These are the two free lenses that come with single-vision glasses at Zenni if your prescription qualifies you for these lenses.【Get Price】

Technical Specifications for Polycarbonate Lenses - Younger OpticsTechnical Specifications for polycarbonate lenses. THE FOLLOWING lenses are HARDCOATED . DIAMETER. NOMINAL. CURVE. TRUE. CURVE. BACK. CURVE. EDGE CENTER. MRP. DEC. SEG. INSET. FITTING CROSS. ABOVE MRP. SAG. AT 50. RADIUS. ADD. RANGE. RX RANGE. 76. 2.00. 2.02. 4.25. 12.8. 11.0. 3.5. 2.5. 2. 1.19. 262.38. 1.00-3.00. -9.00D to +7.00D. 76. 4.50. 4.28. 6.25. 12.5. 11.5. 3.5. 2.5. 2. 2.55. 123.83. 1.00-3.00. 76. 6.50. 6.26. 6.25. 10.0. 11.5. 3.5. 2.5.【Get Price】

Should You Buy CR-39 Lenses Instead of Polycarbonate ...9 Nov 2016 ... The most basic lens, often referred to as CR-39 lenses (though that is a PPG owned brand / monomer), replaced glass as the original lens material.【Get Price】

Transitions Availability - Younger OpticsProduct availability and technical specifications for Transitions lenses. Click here for Transitions Drivewear. ... Transitions Signature - polycarbonate composite - 7 x 28 Trifocal Gray & Brown. Transitions Signature - polycarbonate 1.586 - Image Progressive Gray ... Transitions Signature - polycarbonate 1.586 - Finished Spherical Single Vision Gray & Brown - with Super Hydrophobic AR Coating. Transitions Signature - polycarbonate 1.586&nbsp;...【Get Price】

Lens Materials | The Vision Councilcomposite. Benefits: Varied materials; thin, durable lens. composite lenses incorporate polycarbonate, Trivex , and other ophthalmic materials. Designed to accommodate most eyeglass wearers, lightweight composite lenses are compatible with most protective treatments, including no-glare, photochromic and scratch-resistant coatings. Trivex<sup> </sup> lenses are virtually weightlessan attractive quality for those who wear glasses all day long. They are similar to polycarbonate varieties in&nbsp;...【Get Price】

Glasses | Prescription Glasses | Contact Lenses | Mountain West ...We're not a warehouse or box store where you have to choose your glasses from a limited, mass produced selection. When you come to Mountain West Optical, you have a say in every aspect of your new glasses. We craft your lenses right in our facility, so you won't have to wait extra time for shipping. Below are some of the options you'll have: Lens Materials. composite. composite lenses incorporate polycarbonate, Trivex , and other ophthalmic materials to produce a thin durable&nbsp;...【Get Price】

Transitions Signature Polycarbonate Composite Multifocalpolycarbonate composite Segmented Multifocal lenses: FT28 Bifocal FT35 Bifocal 7 x 28 Trifocal. what's New? Transitions Signature VII polycarbonate composite technology is now available in FT28 bifocal, FT35 bifocal, and 7 x 28 trifocal lenses. This means even more multifocal wearers can now enjoy the unsurpassed photochromic performance of Transitions Signature VII. Why composite? Transitions Optical, Inc. uses a proprietary process to make&nbsp;...【Get Price】