Not all sunglasses are made equally; however, polarised sunglasses by Ray-Ban meet and exceed industry standards. New styles have been added, as well as new elements incorporated into the design of old favourites. The Ultra Limited Edition version of the Wayfarer style includes the company's "Plus" series of polarised lenses. Maintaining strict specifications make wearing Ray-Ban sunglasses both fashionable and functional.
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Ray-Ban's polarised sunglasses block almost 100 per cent of polarised light waves. The sunglass maker's polarised lenses block 100 per cent of radiation up to 400mm, which exceed the legal requirements for the United States and Europe. In addition, only 15 per cent of visible light reaches the eye; the lenses protect up to 100 per cent from glare, and the lenses provide high protection from potentially dangerous blue light.
Ray-Ban's polarised sunglasses are easily identified by the letter "P" laser-etched directly onto the lens. Additionally, these lenses have an anti-reflective coating to provide ultimate protection. Lenses baring the laser-etched "P3" and "P3 Plus" have an added hydro-oleophobic coating, which is the company's highest-quality lens. Only the "P3 Plus" lenses have the high-colour enhancement technology.
For clarity and quality, polarised sunglasses are composed of a high-quality crystal or plastic lens material. These materials are high-grade and ensure that sight is clear and bright. As a result, images are viewed without the distracting glare of highly reflective light from items like a car or large body of water.
Safety regulations for lenses were mandated by the FDA in 1972, but Ray-Ban voluntarily began testing in 1962. The company instituted its own drop ball test, where a 5/8-inch steel ball was dropped from a height of 50 inches onto both the crystal lens and the plastic lens. Conclusive test results revealed that the crystal lens was resistant even at the lowest thickness, and the plastic lens was similar in strength to the crystal lens. All of the lenses used in their polarised sunglasses offer superior scratch resistance and high rigidity.
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