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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 · If your sunglasses are polarised, the screen will likely darken significantly or turn black as you move your head. A lack of any significant change instead indicates that there’s no polarisation on the lenses.

    • Check the Sticker or Label. Obviously, the first place you should check is the online listing, the box it came in, or any tag that was attached to them.
    • Compare Them to Another Pair. No sticker? No problem. If you have another pair of sunglasses that you know are polarized, you can just use those. If you need another pair for comparison, we got you.
    • Look at Water. Okay, but what if you don’t already have a pair of polarized sunglasses? Then, there are still three other polarized tests for determining if they’re the real deal or not.
    • Look at a Reflective Surface. You can do something similar with any reflective surface. Presumably, you have a mirror in your home, but if you don’t because you’re really ugly or something, you can also do this with any other reflective surface.
  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. Apr 16, 2023 · To check if your lenses are polarized: Take your sunglasses to an optical store. Grab a pair of polarized sunglasses from the shelf. Place the lens of your sunglasses at a 90-degree angle to the lens of the drugstore sunglasses. If the combined lenses turn dark or nearly black, your sunglasses are polarized.

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