How Do Sunglasses Work?
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 of certain wavelengths through, it helps to filter out or reflect away the higher frequency light waves that can damage your eyes.
Possibly the most prevalent purpose sunglasses serve is to provide protection from intense light. Intense sunlight can cause you to squint, a natural reaction to too much light entering the eyes. If squinting does not provide enough protection, damage to the cornea can occur next. This is especially common when outside in the snow without your sunglasses. The white of the snow reflects and magnifies the intensity of the light.
The tinting of your sunglasses will help determine the amount of light your eyes will be exposed to. As there are different types of light, all the colours of the rainbow, different shades of lenses will protect in their own way. Grey and almost black tinted lenses will offer the greatest amount of protection from intense lights while avoiding distortion of most colours that you see.
Another quality sunglasses carry is something we are all most likely thankful for. They can provide protection from glare. Water and other shiny looking surfaces can produce a glare. These glares can block out other objects, like a car turning out of a parking lot just ahead of you. Good sunglasses can completely eliminate this kind of glare using polarization.
Light waves vibrate just like sound waves do. When a group of light waves come together but are traveling in different directions, a glare occurs. When you are blinded by glare off of the water or another vehicle's windshield, what you are seeing is a traffic jam of light waves. Polarization filters built into sunglasses are made up of molecules that realign the light waves with each other and eliminate the glare.
As noted before, Sunglasses can eliminate specific frequencies of light. Certain light frequencies can cause blurred vision, while other frequencies enhance contrast between colours. Choosing the right colour for your sunglasses lets them work better in specific situations.
Yellow, gold, amber and brown tinted sunglasses are especially good for blocking out blue light. Blue light is the colour of light in the spectrum that scatters and causes blurred perception. While the yellow shades can make the rest of the world look a different colour, you will see most clearly and detailed through them.
Green tinted sunglasses are better for filtering some blue light and reducing the occurrence of glares. They also offer the highest contrast and greatest visual sharpness of any other coloured lens. For this reason, green sunglasses are very popular. Rose coloured shades and purple tints offer the best contrast of objects against a green or blue background and make great sunglasses for hunting or water skiing.
Now that you know how sunglasses work you can choose the pair that best suits your needs. Knowing what to look for when choosing your sunglasses will help you save money and your eyesight. In fact, it is not a bad idea to have more than one pair around for different purposes. This is especially true if you spend a lot of time outdoors on a variety of activities. Be responsible about your eyes and learn to protect your vision while it's still yours to protect!
Written, re-written and configured for content and SEO purposes by the Happy Helmet Biker Friendly team.
Scroll down for the latest news and videos about sunglasses...
Comments
Menu
-
Home
Friends
Contact Us
Cool Sunglasses to Buy
Happy Helmet's Biker Friendly Site
Our Sunglasses Shop
Related Articles
Sunglasses Are "Hot!"When NOT To Wear Sunglasses
Weird Science Of Sunglasses
Sunglasses And Technology
Primary Benefits Of Sunglasses
The Making Of Sunglasses
Where And When To Wear Sunglasses
Retro Sunglasses, The Way To Go
The Dark History Of Sunglasses
Designer Sunglasses
Who Should Wear Sunglasses?
How To Shop For Sunglasses
This Season's Sunglasses
How Do Sunglasses Work?
Historical Overview Of Sunglasses
Famous Faces Behind Famous Frames
Same Sunglasses, Different Reasons
Where To Find Good Sunglasses
The Creation Of Popular Sunglasses: The Mirrorshades
How Sunglasses Are Made
Related Articles Famous Faces Behind Famous Frames Who Made Sunglasses Popular? We know by simply looking around.. How Sunglasses Are Made Sunglasses are trendy fashion accessories that make you look and feel.. Who Should Wear Sunglasses? Ultimately, everyone should care about their vision and want to protect.. Popular Sunglasses: Mirrorshades It seems like every time you see a movie or TV show.. |
|
|
Sunglasses News:
|
