One day after the rain, Bacon went for a walk in the garden and saw many rain beads on the spider web. He found that when he looked at the leaves through the rain beads, the veins of the leaves were enlarged a lot, and even the fine hairs on the leaves could be seen.
He was overjoyed to see this phenomenon. Bacon immediately ran home, rummaged through everything and found a glass ball. But through the glass ball, the words on the book are still blurred. He found a diamond and a hammer, cut off a piece of glass, and put the glass close to the book. The text was indeed enlarged. Bacon was ecstatic about the success of the experiment.
Later, he found a piece of wood, dug a round hole, put a glass ball on it, and put a handle on it to make it convenient for people to read and write. After continuous improvement, this kind of lens has become the glasses that people wear now. There are myopia glasses for teenagers, reading glasses for the elderly and glasses for other purposes, which are more convenient for people to study and work.
Benjamin Franklin, an American inventor, first invented myopia glasses.
Benjamin Franklin, an American inventor, suffers from myopia and hyperopia. 1784, he invented myopia and hyperopia glasses.
1825, British astronomer George Avery invented glasses that can correct astigmatism.
Some people think that glasses were invented by China 2000 years ago, and glasses appeared in China in the middle of the Ming Dynasty. In the second volume of "Stay in Youth Day" in the Wanli period of the Ming Dynasty, Heng wrote: "Every time I read an article, my eyes are tired, I don't know the essence of the book, so I can cover my eyes, my spirit is not scattered, and my brushwork is clear. It was tied to the back of the head with silk, and no one knew, so I asked more questions. Yu Yu said, "That's right. "At this time, Babali is the original name.
Extended data
Glasses are lenses embedded in the frame and worn in front of eyes to improve vision, protect eyes or play a decorative role. Mirrors can correct a variety of vision problems, including myopia, hyperopia, astigmatism, presbyopia or strabismus.
Glasses consist of lenses and frames. Myopia glasses, hyperopia glasses, presbyopia glasses and astigmatism glasses. There are also special glasses for viewing 3D stereoscopic images or virtual real images. Other types of glasses include goggles, sunglasses, goggles, etc. , provide all kinds of protection for the eyes. Modern glasses usually have a nose pad in the middle of the lens and a cushion where the left arm and right arm rest on the ear. 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, glasses are still the most common tool to correct vision.
References:
Baidu encyclopedia-glasses