Polarized sunglasses

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    Polarized lenses


    Polar warfare sunglasses reduce reflections. For example, reflection means when the sun's rays are reflected in your eyes from water, snow or glass. The reflection will not blind you completely, but you will have to chip your eyes, which makes your eyes strain. Polarized sunglasses help you see more clearly the details. It can improve performance and prevent accidents. Eyes also do not get tired so quickly.

    How do polarized lenses work?

    It is important to understand what light is polarized and what is not. When you light a match, it radiates non-polarized light. The light comes from occasional angles in all directions.

    Polarized light is created when the light is reflected from something like water or a car bonnet, and is horizontal towards you. This horizontal ray of light causes a reflection. The reflection can be dangerous, especially when driving a car or walking on a snow.
    A special chemical is laminated horizontally over the lenses and makes the lens polarized. This pattern prevents light that comes horizontally and thus prevents reflection. The light passes only through the polarized lenses in one direction and thus only utilizes the light in the vertical.

    The benefits of non -polarized lenses

    • Less of the eyes of the eyes - eyes don't get tired
    • Better and more detailed visibility
    • Colors appear more clearly and brighter
    • Safer to work in the waters, snow and traffic


      Polar Wars The lenses are intended for:

      • For driving - a shallow winter sun and sudden reflection no longer interferes with
      • For snow - much more pleasant to do winter sports on snow and wander on a sunny day
      • In the water - You see more clearly the surface of the water and its outline. You don't have to scratch your eyes all the time
        Sunshine dimensions Ninja.fi

        The dimensions of sunglasses

        To make it easier for you to choose the right size sunglasses, we always report the length of the hand, the width of the hand, and the height of the lens as shown in the picture below.

        Sunglasses for the eyes

        Protecting the eyes from the sun's UV radiation is important, but the use of glasses is often also a fashion issue. The EU Directive requires that all sunglasses sold in the EU have 100% UV protection (UV400), a certificate of CE marking on the sunglass body. CE approval means that sunglasses meet all EU requirements for sunglasses (EN ISO 12312-1: 2013).

        Protecting children's eyes is particularly important because the child's eye lens allows more UV radiation than an adult and radiation can penetrate up to the retina, deteriorating. Good sunglasses are large and also protect against UV radiation from the side. The UV or UV 400 marking in sunglasses indicates that the glasses completely filter UV radiation.

        Polarized lens

        Polarized lenses are needed especially in snow and water.

        Sunglass Cat rating

        CAT classes the classification of sunglasses protection. The glare protection and UV protection are two different things.

        Cat 0 - Imagolas
        The lenses of the sunglasses are bright or light. Sunglasses allow 81-100% of the sun's rays. They do not protect against glare, but they have UV protection according to the EU Directive.

        Cat 1 - Cloudy Weather Lens
        Light permeability rate 44-80%. These are well suited for cloudy weather, with minor sunshine. In glassesis the UV protection of the EU Directive

        Cat 2 - semi -cloudy weather lens
        Light transmission 19-43%

        CAT 3 - Sunny and Bright Weight Lens
        The sunglasses of this class are the best for normal use. They filter 9-18% of the light and thus provide good comfort even on sunny weather.

        Cat 4 - Dark Lenses
        Really dark lens for extreme conditions such as mountains or desert. The light transmission rate is only 3-8%. The lens is so dark that these sunglasses should not be used, for example, when driving a car.

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