Polarized Sunglasses

Polarized Sunglasses

Polarized Lenses are lenses that only allow light in a specific polarization direction in natural light to pass through. Because of its light filtering effect, it will darken things when you wear it. In order to filter the dazzling light of the sun in the same direction on the water, land or snow, a special vertical coating is added to the lens, which is called polarized lens. Best for outdoor sports such as sea activities, skiing or fishing.

Principle

The special effect of polarized lenses is to effectively exclude and filter the scattered light in the beam. The light can be put into the visual image of the eye on the light transmission axis of the right track, so that the vision is clear and natural. Just like the principle of venetian blinds, the light is adjusted into the same direction light and enters the room, which naturally makes the scene look soft and not dazzling.

Application

Polarized lenses are mostly used in the application of sunglasses, and are necessary equipment for car owners and fishing enthusiasts. It can help drivers filter out oncoming high beams and enable fishing enthusiasts to see fish floats on the water.

Distinguish

(1) Find a reflective surface, then hold the sunglasses and observe the surface through a lens. Slowly rotate the sunglasses ninety degrees to see if reflected glare decreases or increases. If the sunglasses are polarized, you will see a noticeable reduction in glare.

(2) Put the lens on the computer screen or the LCD screen of the mobile phone, turn it around, there will be obvious light and shade, and the fonts will change from one to the other. These two methods can identify all polarized lenses.

Of course, there are also professionally tested polarized lights and cards that can immediately identify whether they are polarized lenses.

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‍Source: www.ouseneyewear.com