The History Of Smart Glasses

The oldest spectacles unearthed in the world come from the end of the Eastern Han Dynasty (about 1800 years ago, perhaps with the further research of archaeologists, the birth of spectacles will begin in an earlier period). The development history of domestic glasses has successively experienced 5 stages of primitive legend, single-piece single-handle, double-piece without legs, double-piece single-leg, and double-piece bent leg. In the Southern Song and Yuan Dynasties, the workmanship of the spectacle frames became quite exquisite. The materials included copper frames, horns, ivory, and even tortoiseshell frames. Even the spectacle cases were made of snake skin.

The history of the development of glasses in the West is related to the famous traveler Marco Polo (Italian) who came to China in 1270 (China's Yuan Dynasty). Based on what he saw and heard in China, the book "Marco Polo "Travel Notes", in addition to recording China's customs, economics, technology, etc., it also brings the production and use of glasses back to the West. Therefore, in the Western world, the invention of glasses is generally believed to be between 1268 and 1289. At that time, the main wearers were monks and scholars. Since the glasses at that time could not be as accurate as they are now, they could only be placed on the nose to manually adjust the distance. . In 1452, with the popularity of glasses, it was favored by the middle class and upper class, and more elegant and delicate gold and silver framed glasses appeared. The first important development in frame glasses design occurred in the 17th century. The fixed frame replaces the riveted lens, so that the glasses can be mounted on the nose smoothly. In 1784, the American inventor Benjamin Franklin invented both distance and myopia glasses; in 1825, the British astronomer George Avery invented glasses that can correct astigmatism. Stained lenses (sunglasses) etc. also appeared later, and the material of lens frames also changed continuously. In modern times, contact lenses, smart glasses, etc. appeared, which shows the infinite creativity of mankind.