With plenty of activities to do under the sun, sunglasses are always a necessity. The sun’s powerful rays can play havoc with your eyes. Whether driving, playing golf, or simply relaxing in the sun, it is important to wear sunglasses.
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Sun glasses have always been a great fashion accessory and with a great selection of sunglasses from an online supplier, you can choose a pair that really suits you. When purchasing sunglasses, it is vital that they are polarized. While the label might say ‘polarized’, here are a few tests you can carry out to ensure that the sunglasses are, in fact, polarized.
- Polarized Testing On A Reflective Surface – This test requires a flat and shiny surface that reflects glare, which could be a mirror, a table top, or any reflective surface that produces glare when a light is shone onto it. Hold the sunglasses 6-8 inches from your face and look at the surface through one lens at a time, then rotate the sunglasses upwards to about 60 degrees and you should see the glare disappear. If you do this a few times, you should be able to see how the lens cuts out the glare, and with unbreakable sunglasses from Humps Optics that are guaranteed polarized, you can browse the many styles and select the perfect pair.
- Comparing Two Pairs Of Sunglasses – For this method, you will need one pair of sunglasses that you know are polarized. Hold the pair that you know to be polarized furthest away, with the pair you are testing closest to you. Then, position the glasses in front of a bright light, which could be artificial or natural sunlight. Rotate the questionable sunglasses to about 60 degrees, and if both pairs are polarized, the image should be darker. While in the event the sunglasses you are testing are not polarized, there will be no change in color. There are interesting articles you can find online on the angle of polarization, which might help you to better understand the physics behind polarization.
- Using Your Computer Screen – You can easily check for polarization using your computer screen; first maximize the brightness on the screen, then open a blank MS Word document, which will give you a clear white background. Sitting in front of the screen, wear the glasses as you normally would. Tilt your head to the left or right 60 degrees and the screen should become darker if the glasses are polarized. Do this several times, which should turn the screen black, as the two polarized surfaces cancel each other out.
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The best way to ensure that your new sunglasses are polarized is to shop at an established specialist store, as they would have a good reputation, which they would never compromise by selling inferior products. If you search online, you will find designer sunglasses direct from the wholesaler, saving you at least 15% on the price. With so many designs, there’s bound to be something ideal.