The emerge of sunglasses

The emerge of sunglasses

The emerge of sunglasses

Nowadays, people know sunglasses very well and everyone wants to have one to prevent the UV radiation and HEV radiation. Besides, sunglasses can make them more fashionable. They are as common as ties gloves hats and so on. There are several kinds of sunglasses, such as prescription sunglasses, non-prescription sunglasses. Do you have any ideas how the sunglasses come into being, especially the fashion ones?

It was in the 12th century that the first sunglasses appeared in China and looked like a crude slab of smoked quartz. Later, this simple design developed into a slab with a roughly shaped frame to hold the quartz. Exclusive to the rich, these primary sunglasses could not only block out sunlight, but also hide emotions during conversation. Later in the 18th century, sunglasses with vision correction were conceived by James. And sunglasses with blue or green tint were believed to correct certain vision problems, rather than solely shield the eyes from bright sunlight.

In fact, sunglasses became popular only until the 1920s, which was contributed by the prevalence of the film industry. At this time, many Hollywood stars and starlets used sunglasses to block out stage light and the blinding flashbulbs of cameras. Promoted by the film industry, mass production of sunglasses occurred. During the 1950s and 1960s, sunglasses were accepted widely by the public. Until now, sunglasses have a substantial change. With the improvement of technology, the material used in sunglasses are more advanced than before.

Today, sunglasses are welcomed by a great number of people for three main reasons. Firstly, sunglasses can resist the UV and HEV radiation, which are harmful to people's skin. Secondly, they have the function of vision correction. And last, modern sunglasses are fashionable. There are different kinds of styles and colors. Many brand names also concentrate on sunglasses making, which provide a wider choice. Many celebrities and ordinary people would like to wear them to show they are special. With time flying, modern sunglasses will be more and popular and the shapes, colors and styles will be much more various.

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