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Over 1,000,000 Reading Glasses Sold since 1999

Polarization

Polarization: Polarized reading sunglasses have lenses that react to sunlight, which consists of a broad range of frequencies. The lights electro-magnetic fields point in many different directions. Certain materials have the property of only allowing the passage of the fields pointing in a particular direction. These polarising materials have the effect of greatly reducing the brightness of the light. Some reading glasses are tinted with polarizing properties.

Effect: Light reflected from a horizontal surface goes through the process of horizontal polarization. Polarized sunglasses are made to allow through only vertically polarised light, thus reducing reflection and glare. Normal sunglasses decrease the intensity of everything by the same amount but polarizing reading sunglasses can selectively eliminate reflected light.

Applications: The ability of certain substances to polarize light has an application in sunglasses. The glare of the sun on the sea and other surfaces is highly horizontally polarized depending on the height of the sun. Polarized sunglasses make water appear darker and more transparent, which is ideal for anglers. Because polarization has the effect of cutting down the glare of reflected light, these lenses are ideal for those participating in water-sports. Polarized sunglasses can be of benefit to drivers in that they filter bright sun reflections on the vehicle ahead and road surfaces, attenuating the dazzle significantly.

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