Polarised lenses are a sight to behold
Post on 21st June 2017
When the sun is out many of us will naturally grab our hat, shades and suncream to enjoy the bright days of summer.
But when the sun causes glare which dazzles and strains your vision, say if you are driving, playing sport or relaxing by the pool, it is less appealing and can be dangerous too if you are at the wheel of a car.
It is times like these when polarised lenses come into their own as they block blinding glare – as well as harmful UVA and UVB light – which ordinary tinted sunglass lenses cannot do.
Glare is caused when light waves from the sun, which naturally travel in all directions, reflect off a horizontal surface like a road or water and the light becomes concentrated horizontally.
Polarised sunglasses are designed to reduce glare from surfaces such as water, snow and glass. Their special filter blocks this type of intense reflected light which can distort the true colour of objects and make them harder to distinguish.
Lenses can be polarised to different degrees and in different ways. Most inexpensive polarised sunglasses have a thin film applied on one side of the lens. Many higher quality lenses have film laminated between two layers of lens material, preventing it from being scratched or rubbed off. The denser the film, the more polarisation it provides.
Such lenses are particularly useful for driving, skiing and fishing and interest in them has grown from people who enjoy spending time outdoors and can see the benefits they give.
If you would like to find out more about polarised lenses and how they can enhance your lifestyle and vision, please call in at your local Scrivens branch for expert help and advice.