History of Glasses

Discovery glasses technology is closely related to the development of a magnifying glass. Owned by the oldest historical societies in the ancient city of Nineveh. They have known "glass eye", which actually serves as a magnifying glass over the lens material instead of glass but crystal. Ancient BangsaYunani also has a magnifier glass bulb contains intangible air.Baru the XII century, almost simultaneously magnifying glass on the outside honey mounted on the frame appears in Chinese society and Eropa.Melihat benefits magnifying glass, then in 1268 Roger Bacon, philosopher, scientist and berkebangsan British educational reformer, argued the need for a lens optical equipment. But not everyone is willing to put Bacon as the originator of the first birth of a glass eye.

With the evidence at hand, some have argued kemungkinanbesar sunglasses born in Italy in ± in 1286. As for who the inventor appeared two versions, whether Alessandro di Spina of Florence Florentine or Salvina Armato.Dalam singakt time, in the 1300s eyewear began to be produced by manufacturing center in Venice. But it's not like the glasses while now. Simple lens quality, its use is also commonly used merepotkan.Alat read the monks with farsightedness disorder that only consists of two lenses which are connected, without stalks. After gluing on the nose connection, the user should continue to hold him. Although the connection is slowly getting stronger, the glasses still considered dangerous.

Various kinds of experiments were conducted to find the best and safest way to wear glasses. There were installing metal plates mounted long from nose to goto the middle and then head down to the neck. Because the installation is complicated and impractical, the goggles were not diminati.Model other is with a small chain attached to both sides of the glasses. Then the chain is attached at the back of the head, like special glasses for swimmers or bikers. Anything else is hooked on hats sunglasses. It was inconvenient, even annoying, especially when I had to read in the room or open the cap to give salam.Akhirnya, there are people who are creative enough to put up the stalk, so the glasses can "hold" on the ear.

The end of the XIV century when the glasses came into common use and are considered as precious objects, tools read it often appears as a subject in painting accessories. One of them is a painting of Pope Leo X made by Raphael 1517.Perkembangan next year is now successfully found glasses bifokus, which has a well and a concave lens convex lens in one frame. In 1784 the world's first glasses bifokus made by Benjamin Franklin - politicians, writers, scientists as well as America. However, optical devices which can make it convenient when traveling, because in addition to enjoying the scenery at the same time also to read his favorite books, still simple shape.

After successfully separating convex and concave glass, he cut horizontally each section stersebut hand lens. Then with clamped by frame, the piece convex lens in the lens cut ditumpankan cembung.Hingga 1884 was also produced bifokus lenses are made from the pieces, though it was sticky. It was only in 1908 and 1910 known convex and concave lenses are completely fused in one lens lensa.Materi also helped develop, the first of quartz, glass lens made subsequently. Last few decades, even more diverse selection of lenses when introduced plastic lenses. Diperancis 1888 produced the first contact lenses as medical devices, because the view of the patient's disorder may no longer be helped by regular glasses. But the lens was only used a few people, it was forced. When fitted contact lenses are made of glass that will cover the entire front of the eye. In 1938 found a plastic contact lens. A decade later, the contact lenses were introduced which only cover the cornea.