Sunglasses are a very common parts in these days. Most people would think, a
pair of sunglasses is used to prevent excessive sun. But in fact, there are
different types of sunglasses,, such as regular sunglasses, polarized sunglasses
and prescription sunglasses. The wearer by modern manufacturers of brand-name
sunglasses can also provide design and fashion style. It is very easy for
customers to find a pair of sunglasses, supplement their personality. This paper
mainly introduces the polarized sunglasses and prescription sunglasses.
In
general, polarized sunglasses use environment, there are many sun glare. When a
person is in the sun, it is quite common. From the sun glare is always difficult
to see the light, can damage the eyes and fuzzy details hidden behind. Equipped
with polarized lenses sunglasses can effectively filter out the excess solar
glare. As everyone knows, using colored shielding automobile windshields,
driving the sun. In a similar way, the second layer of protection, allowing only
vertical wave by polarizing sunglasses feature. In other words, polarized lenses
capable of preventing most in the sun on the horizontal wave. There are many
different occupation, can benefit from wearing polarized sunglasses as fishermen
and rowing, and those who are always on the outside.
Another popular type is
the prescription sunglasses. The name of this one proposal special requirements
and visual aid and sunlight filters. When it comes to prescription sunglasses
anti-ultraviolet function, there is no significant difference of regular
sunglasses. The lens material almost all can be used, such as Trivex,
polycarbonate, plastic and glass regular high refractive index. In addition,
lighter, cheaper materials to be used. When it comes to the function of
correctional eyesight, in charge of regular prescription eyeglasses prescription
sunglasses. However, prescription sunglasses as a composite sample products more
convenient to carry prescription is formal and clip components.
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