ocr: Sunglasses existed as early as the fifteenth century in China. At the time, however, the purpose ofthese glasses had nothing to do with sun. Smoked quartz lenses were devised to conceal a judge's eyes SO that his evaluation ofevidence would not be disclosed until the conclusion of a trial. The widespread use of tinted glasses to block the sun gained popularity after the US Army Air Corps hired All: objects isolated in Bausch & Lomb to design glasses for Army air pilots to the Series Object have block high-altitude solar glare. They were aptly named path acustom embed- Ray-Ban for their ability ...
