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Retro SunglassesRetro Sunglasses, the Way to Go
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More ArticlesPrimary Benefits Of Sunglasses The Dark History Of Sunglasses Creating Popular Sunglasses Mirrorshades The Faces Behind Famous Sunglasses
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More Articles... 1430, sunglasses were worn by Judges in the Courts of China. The smoky quartz, flat-glassed panes were not used as protection from the sun. They were used to conceal any expression in their eyes to keep from giving away the outcome of their decisions. Prescription sunglasses were developed in Italy in 1430 and were later used by the Chinese Judges. By the 1600's people began to realize the benefits of prescription glasses as helping the elderly to see better and the motto "A Blessing to the Aged" came into being in 1629. In the mid 18th Century, James Ayscough developed blue and green corrective ... ... plastic can change its color and transparency when the sunglasses receive an electrical charge. The lens contains a gel-like solution in between the layers that helps transport charged particles. A watch battery delivers the charge. When the electricity is transmitted, the molecules change from transparent to a variety of shades and tints in seconds or less and your glasses become your sunglasses! Visual effects are not the only advances made for sunglasses in recent years. Many product developers are beginning to see the need to further integrate technology and communication into everyday life. ... ... a killer outfit. It is important to know what these things are and how they are done to ensure your sunglasses are doing their job. As you probably already know, sunglasses provide protection from ultraviolet rays in sunlight. UV rays can cause serious damage to the corneas, and a good pair will shield 100% of these rays. A protective coating on the outside of sunglasses acts as a kind of filter. While it allows light through, it helps to filter out the radioactive light waves that can lead to so many dangers to your eyes. Possibly the most prevalent purpose sunglasses serve is to provide protection ... ... anyone passing by, but are they really necessary? This idea seems silly at first, but is another that becomes more reasonable when you consider all of the factors. Babies are the most sensitive creatures of all of us. This goes double for their eyes. A newborn's eyes are capable of seeing no more than about ten inches away from their face. Even at this distance, most things are very blurry. When the sun reflects into an already blurred perception of the world, the results can be very harmful. Baby sunglasses are not just a cute idea, they are essential to protecting your child's eyesight. Anytime ... ... men's, women's, unisex, children's, designer, and custom-made sunglasses. There are police, pilot and rescue sunglasses, biker, skier and other sports sunglasses. There are even sunglasses with built-in audio digital players. How are all these different sunglasses made? Sunglasses have various types of lenses. Glass lenses have better visual quality and are more scratch-resistant than plastic ones. Photo chromic lenses darken in reaction to light. Glass photo chromic lenses are more efficient in the reduction of Ultra Violet light rays. Gradient Lenses are darker on top and gradually become lighter ...
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