According to information, glasses appeared earlier in Florence, Italy in 1289. It is said that the most important tool in the world was invented by an optician named Almato and an Italian named Spina living in Pisa. of. American inventor Benjamin Franklin, suffering from nearsightedness and farsightedness, invented dual-purpose glasses in 1784 to avoid the torment of frequently changing two pairs of glasses. In 1825, British astronomer George Ailey invented glasses that could correct astigmatism. Some people believe that the Chinese invented glasses 2,000 years ago. Although it is still a mystery who invented glasses first, it is an indisputable fact that glasses appeared in my country in the middle of the Ming Dynasty. Ming Wanli Tian Yiheng said in the article "叆叇", Volume 2 of "Liuqing Daily": "Every time I read an article, my eyesight is dizzy and I can't distinguish details. I use this to cover my eyes, my spirit is not scattered, and my strokes are clear. , tied to the back of the head, people don't know, so I asked Yu. Yu said: This is soo." At this time, Soo was the original name. There are not many images and physical materials of early glasses in my country. There is an old man wearing glasses in the Ming painting "The Scenery of Fanhui in the Southern Capital" in the Chinese History Museum. During the Qianlong period of the Qing Dynasty, my country was able to produce glasses. The frame was a black lacquered wooden frame, with a knotted ribbon, and the lenses were made of crystal. By the Jiaqing Year of the Qing Dynasty, glasses were popularized. Everyone who is short-sighted wears glasses, and the shades in the shop are clearly defined. It is more tolerant and light-hearted, and all competition to buy is from the descendants." Interestingly, the shades of glasses in the Qing Dynasty were divided according to the twelve earthly branches. Yes, this is in the Qing historical materials pen

It is recorded in "Xiangyanjieyi" written by Li Guangting. Since the invention of lenses in the 13th century, people have been grinding lenses with crystal glass. In 1937, France invented a plastic spectacle lens called acrylic. Although it is not easy to break, the clarity is poor. In 1954, an engineer from the French Essilor Company was inspired by the materials used to make aircraft cockpits and invented resin lenses, which are still in use today.