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Man with glasses. A woman with glasses. Glasses, also known as eyeglasses or spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears for support.
In 1939 Day Glasses were the source of most of Polaroid's $35,000 profit, which introduced the first 3D movie glasses that same year. [6] Although sales rose to $1 million in 1941, the company's 1940 losses had reached $100,000, and it was only World War II military contracts that saved Land and his 240 employees.
About a year after Essilor acquired Foster Grant, Luxottica further acquired sports eyewear manufacturer Oakley in 2007 for US$2.1 billion. The acquisition followed a pricing dispute between the two companies, with Luxottica causing Oakley's stock price to plummet by pulling its product out of Luxottica-owned Sunglass Hut and LensCrafters.
Edward Scarlett (1688 – 1743 in London) was an English optician and instrument maker, who first invented an eyeglass frame with earhooks in 1727. This frame is held by the nose and ears, at times the glasses were called in contrast to the nasal cannula and temples because they had short straps that pressed on the temple.
Ibn al-Haytham (Alhacen) wrote about the effects of pinhole, concave lenses, and magnifying glasses in his 11th century Book of Optics (1021 CE). [ 45 ] [ 47 ] [ 48 ] The English friar Roger Bacon , during the 1260s or 1270s, wrote works on optics, partly based on the works of Arab writers, that described the function of corrective lenses for ...
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When the ball becomes out of play, play is restarted by one of eight restart methods depending on how it went out of play: Kick-off: following a goal by the opposing team, or to begin each period of play. [99] Throw-in: when the ball has crossed the touchline; awarded to the opposing team to that which last touched the ball. [134]
Browline glasses are a style of eyeglass frames where the "bold" upper part holding the lenses resembles eyebrows framing the eyes. They were very popular during the 1950s and 1960s, especially in the US. The glasses were first manufactured by Shuron Ltd in 1947 under the "Ronsir" brand, and quickly emulated by various other manufacturers.