Today, sunglasses are synonymous with ray ban glasses. Whether you are a man or woman, when it comes to sunglasses ray ban is a unanimous choice. The brand was founded by American Company Bausch and Lomb in 1937 and is best known for its aviator and wayfarer sunglasses. Ray ban glasses were originally designed for pilots. Their main purpose was to help improve the pilot's vision by reducing distractions caused by the sunlight bouncing off clouds. Another concern was that goggles being used by pilots at that time had a tendency to fog up and blind the pilot at high altitudes. Ray ban aviators were designed and patented in 1939 as a metal frame with green, impact resistant lenses. The green lenses filtered out blue light and made these glasses ideal for misty conditions. In 1969, Peter Fonda wore a pair of ray ban glasses for the movie Easy Rider and made them popular with the masses. Since then Ray Ban glasses have been constantly evolving. After that, the next design to be patented by Ray Ban was the wayfarers. These were designed with the iconic Eames chair and Cadillac tail fins as inspiration. Wayfarers were popular with a number of actors and musicians including Tom Cruise, Michael Jackson, Billy Joel, Elvis and Jack Nicholson. They even found themselves immortalized in Don Henley's words as lyrics for “The Boys of Summer� “You got that hair slicked back and those Wayfarers on, baby…" Another popular range of ray ban glasses is the browline or club master glasses. These feature a square frame with curved edges that are inspired by the 1950's. Ray Ban club master glasses are available with a number of different types of lenses including classic lenses, polarized lenses, gradient and flash lenses. Classic lenses offer clear vision and protect the eyes. While these lenses are available mainly in shades of brown and green, gradient lenses are available in a wide range of colors to match the season's trends. Polarized lenses help reduce glare and brightness thus reducing the pressure on the eyes. Polarized lenses are usually available in pink, light blue and shades of grey. Flash lenses make a bold statement with their mirror coating and are usually available in blue, green and silver. Today Ray ban glasses are available both online and offline. They can be personalized in a number of ways. To begin with, you could choose between a matte and glossy finish for your frames. You could also experiment with metallic rims and rubber nose pads. It is also possible toe engrave your name or initials on a pair of glasses. So what's your favorite Ray Ban Model?