The Gatekeeper of Light: How Polarized Lenses Tame Glare

Imagine that you are a little detective with a pair of magical glasses that can help you see more clearly and farther, even in the sun without being afraid of glare. This pair of glasses is our protagonist - anti-glare sunglasses.

Little heroes in the sun: the secrets of anti-glare sunglasses

In the sun, sometimes we are blinded by reflected light, such as the glittering light on the water or the glare reflected from the surface of the car. These are glare, which can make our eyes feel uncomfortable and even affect our vision. However, with anti-glare sunglasses, it is like having a pair of glasses with super powers that can help us filter out these unwanted lights.

How does it work?

There is a magical chemical in anti-glare sunglasses, whose molecules are arranged in a very orderly manner, just like blinds on windows. These molecules only allow some light to pass through, just like blinds only let some light into the room. In this way, those horizontal light that makes our eyes uncomfortable is blocked out, and only the light that is useful to us can enter our eyes.

Why use it?

When we are doing outdoor activities, such as fishing, boating or golfing, anti-glare sunglasses are like our little assistants, helping us reduce glare and see more clearly. In this way, our eyes will not be so easily fatigued, and we can enjoy the fun of the outdoors more safely.

Image source: Pixabay

When shouldn’t you wear it?

Although anti-glare sunglasses are useful, in some cases, it is better not to wear them, such as when we need to look at an LCD screen or drive at night, because these times we need more light to help us see more clearly.

Remember: Anti-glare sunglasses are not the same as UV protection sunglasses. UV protection is to protect our eyes from the sun's ultraviolet rays, while anti-glare sunglasses are to help us reduce glare. So, next time when you are choosing sunglasses, remember to check if they are labeled polarized!

Source: Chongqing Radio Science Popularization Experience Center

Audit expert: Yang Yaohui

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