Views:77 Author:Site Editor Publish Time: 2020-07-25 Origin:Site
Today's glasses may no longer be a symbol of wealth or wisdom, but glasses can reflect your personal style. Sunglasses have always been very popular among people from all walks of life.
Glasses are lenses embedded in the frame, which are worn in front of the eyes to improve eyesight, protect the eyes, or be used for decoration. Glasses can correct a variety of vision problems, including myopia, hyperopia, astigmatism, presbyopia or strabismus, and amblyopia.
The glasses consist of lenses and frames. Divided into myopia glasses, farsighted glasses, reading glasses and astigmatism glasses, flat glasses, computer goggles, goggles, swimming goggles, night vision goggles, gaming goggles, gaming goggles, goggles, sunglasses, toy glasses. There are also special glasses for viewing 3D stereoscopic images or virtual real images. Modern eyeglasses usually have a nose pad in the middle of the lens and a cushion on the left and right arms resting on the ears. People who love beauty or are not used to wearing glasses can choose to correct their vision with contact lenses. Although contact lenses and laser correction surgery have become more and more popular in recent years, wearing glasses is still a safe and effective vision correction tool.
In 1268, Roger Bacon first recorded lenses used for optical purposes. However, at the same time, magnifying lenses that fit lenses into frames for reading have appeared in Europe and China. There has been controversy over whether glasses are introduced into China from Europe or China. In Europe, the earliest glasses appeared in Italy, introduced by Alessandro di Spina of Florence. The earliest glasses portrait "Hugh of Provence" was drawn by Tommaso da Modena in 1352. Before the Song Dynasty, glasses prototypes appeared in China.
It is said that it was invented by an optician named Almato and an Italian Spina living in Pisa.
American inventor Benjamin Franklin, suffering from nearsightedness and farsightedness, invented both far and nearsighted glasses in 1784; in 1825, British astronomer George Avery invented glasses that can correct astigmatism. Glasses appeared in China in the middle of the Ming Dynasty, and there are articles left by literati as textual research.
The formation of the folding industry: In the history of China, with the development of individual handicrafts, the use of glasses has evolved from natural crystal to the use of glass. The scope of use of glasses has been promoted and expanded to the private sector, and there have been new developments in production technology.
China's Gusu (Suzhou) is the birthplace of China's glasses. The production of glasses in Suzhou not only has a long history, but also played a great role in promoting the development of China's eyewear industry. Sun Yunqiu and Chu Sanshan, two outstanding technical talents who made glasses, promoted the formation and development of the Suzhou eyewear industry at that time. In 1735, a handicraft workshop dedicated to the production of glasses had appeared in Suzhou. By the time of Kangxi in the Qing dynasty, the production and sale of glasses had flourished in Beijing, Shanghai, Suzhou, Tianjin, Guangzhou and other places. Glasses have become specialized products.
Industry goes up: Since the Opium War of 1840, Western optician technology has been introduced into China, opening up a new path for the rise of the eyewear industry. In 1911, there was finally the first glasses company opened by the Chinese themselves. It has made new developments in China's eyewear industry, especially in terms of optometry and optics.
Wearing sunglasses can not only block ultraviolet and infrared rays, but also bring a cool and comfortable feeling because of changing the light intensity. There are many types of sunglasses, fashionable sunglasses, classic sunglasses, customised sunglasses and so on. According to the different frame, it can be divided into transparent frame sunglasses, square retro sunglasses and wooden frame sunglasses.