According to The Book, "It was in 2283 BC that the Chinese emperor observed the stars through a lens. Stylish Glasses For Men were introduced from China to foreign countries. According to Confucius (551 BC? Fashion Glasses For Men made of crystal and other transparent minerals were worn in China to heal the eyes or protect them from the sun, said The Author.
According to preliminary research, the history of lenses and Eyeglasses Frames For Men in China is as early as the Warring States Period (2300 years ago), in Volume 5 of Mozi l, there are many discussions on light and flat mirror, convex mirror and concave mirror. In the third concave century BC, Glasses Frames For Men our ancient people made fire through a lens. In the early eastern Han Dynasty, Zhang Heng discovered the phases of the moon and the primary cause of lunar eclipses, also with the help of lenses.
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