Ray-Ban is a manufacturer of sunglasses, founded in 1937 by Bausch & Lomb. They were introduced for the United States Army Air Corps. In 1999, Bausch & Lomb sold the brand to the Italian Luxottica Group for a reported 1.2 billion dollars.
Ray-Bans were initially created in 1937 after Lieutenant John MacCready had returned from a balloon flying adventure in 1920. He complained that the sun had done permanent damage to his eyes. He contacted Bausch & Lomb asking them to create a type of sunglasses that would not only provide superb protection, but also look elegant. On May 7, 1937, Bausch & Lomb officially took out the patent. The prototype, known as Anti-Glare, consisted of an extremely light frame weighing 150 grams. They were made of gold-plated metal with two green lenses made of mineral glass to filter out infrared and ultraviolet rays. Pilots in the United States Army Air Corps immediately adopted the sunglasses. The Ray-Ban Aviator became a well-known style of sunglasses when General Douglas MacArthur landed on the beach in the Philippines in World War II, and photographers snapped several pictures of him wearing them.
Quoted from Wikipedia