In 1929, US Army Air Corps Colonel John A. Macready worked with Bausch & Lomb, a Rochester, New York-based medical equipment manufacturer, to create aviation sunglasses that would reduce the distraction for pilots caused by the intense blue and white hues of the sky.[2][3][4] Specifically, MacCready was concerned about how pilots\' goggles would fog up, greatly reducing visibility at high altitude.[5] The prototype, created in 1936 and known as \"Anti-Glare\", had plastic frames and green lenses that could cut out the glare without obscuring vision. The name \"Ray-Ban\" was hence derived from the ability of these glasses to limit the ingress of either ultra-violet or infra-red rays of light.[6] Impact-resistant lenses were added in 1938.[7] The sunglasses were redesigned with a metal frame the following year and patented as the Ray-Ban Aviator.[5] According to the BBC, the glasses used ?Kalichrome lenses designed to sharpen details and minimise haze by filtering out blue light, making them ideal for misty conditions.?[5] In 1999, the Global Eyewear Division of Bausch & Lomb, including Ray-Ban was acquired by Luxottica Group for US$640 million.[1] In 2021, Ray-Ban commercialized a model of smart glasses that they developed with Facebook Reality Labs called Ray-Ban Stories.[8][9] Sunglasses lines Ray-Ban\'s most popular sunglasses are the Wayfarer, Erika, and Aviator models.[5][10][11] During the 1950s, Ray-Ban released the Echelon (Caravan), which had a squarer frame. In 1965, the Olympian I and II were introduced; they became popular when Peter Fonda wore them in the 1969 film Easy Rider.[12] The company has also produced special edition lines, such as The General in 1987, bearing similarity to the original aviators worn by General Douglas MacArthur during the Second World War.[7] In the 1980s the Ray-Ban Clubmaster was added to the model line.[13] The Clubmaster has a browline frame and went on to become the third best selling sunglasses style of the 1980s, behind the Wayfarer and Aviator.[14]