Are Polarised Sunglasses cream of the crop for cool sunglasses?

There is no doubt when it comes to finding cool sunglasses and particularly sunglass lenses some are better than others. Manufacturers, particularly of designer sunglasses, spend a lot of money on the latest technology to provide the best tinted finish to their products. It is amazing to see that a company like Oakley has some 600 patents covering their totally cool sunglasses for both frame and lenses. It just shows the amount of time and investment is put into making the latest products the best that they can be. Ray Ban are also known for the quality of their lenses and try and create tints that filter the light passing through rather than add colour and distort the wearers view of the world. However there is one form of lens technology that has stood the test of time and can be argued is the most efficient and appropriate solution to the problem of dazzling sunlight and glare in particular, polarised sunglasses.

Polarised Sunglasses: The technique

The technique behind making polarised sunglasses lenses is quite simple but very effective. Basically light is made up of electromagnetic waves oscillating in all directions around a single beam. When it hits a highly reflective surface such as water or the bonnet of a car the light ray becomes polarised and the waves are restricted to a horizontal attitude only. This means that if you can create a lens whose molecules are lined up so that they only allow vertical waves to pass through then the horizontal element (i.e. the reflected glare) will be absorbed. So the great advantage of polarised sunglasses lenses is that they not only reduce the normal sunlight but also selectively remove the glare as well.

To check if a pair of sunglasses has polarised sunglasses lenses in it simply look through it at a highly reflective surface, slowly turn the lens through 90 degrees and watch the glare increase.

Most cool sunglasses collections have polarised sunglasses options but two names to mention would be Nike Polarised sunglasses and the latest Police Polarised Sunglasses range. Both are available for a very good price from Happyglasses.org, where all models are they at least 20% less than the high street price.

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