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  2. Jul 3, 2023 · If you aren’t sure how to tell if your sunglasses are polarized, find a reflective surface that produces glare, like a mirror or a reflective tabletop. Hold your glasses about 6-8 inches in front of your eyes and tilt them at a 60° angle. Look through the lens and check the level of the glare.

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  3. Oct 23, 2020 · The computer screen test is the easiest way to see if your sunglasses are polarized. Simply hold your Sunglasses up to a computer screen, then rotate 90 degrees. If your lenses become dark or you can no longer see through them, they are polarized.

  4. Apr 12, 2024 · Hold your sunglasses at 90 degrees in front of the screen. Look through the lens overlapping the screen while slowly rotating the frame so they're at the correct orientation. Check whether there's a change in the brightness of the light. If the screen darkens, the lenses are polarised.

  5. Apr 2, 2024 · Look through both sunglasses and tilt the polarised pair 90°. When two polarised lenses overlap at opposing angles, they create an almost pitch-black surface. If You can’t see anything through the lenses, then you’ll know they’re polarised. Otherwise, they’re regular sunglasses.

    • Use a Mirror. The easiest way to tell if a pair of sunglasses are polarized is to use a mirror. To make sure that you’ll get a clear answer, it’s a good idea to shine a light directly onto the reflective surface you’ve chosen and see if you are met with glare.
    • Use a Device with an LCD or LED Display. If you have a mobile phone, tablet, or computer handy, then you can use any one of them to tell if you’re working with a pair of polarized sunglasses.
    • Use a Pair of Polarized Sunglasses. Perhaps the most obvious solution of the three is to compare your sunglasses to a pair of polarized sunglasses.
  6. The most reliable way to identify whether or not your sunglasses are polarized is with a polarization filter test. This test involves placing your sunglasses on top of a polarizing filter and rotating the glasses in order to observe the light passing through them.

  7. How to Tell if Sunglasses Are Polarized. Everyone should own a pair of polarized sunglasses. They cut down on glare, making it easier to see clearly and reducing strain on your eyes. While polarized sunglasses are extremely popular, many brands still make non-polarized versions.

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