(Summary description)Depending on the craft, material, and polarization rate, the quality of the polarizer will vary greatly, and whether the lens has a polarizing effect, you can’t see it simply by simply checking it, and you need to use a certain method to identify it, so understand some to distinguish the polarizer. The method is necessary.

1. In the regular sunglasses, polarized sunglasses will have a clear electrostatic label of polarized lens material on the lens, or the product tag will indicate the use of polarized lens.

2. Generally, when buying sunglasses in professional eyeglass shops, there will be a polarized test piece for testing. Part of the pattern on the test piece cannot be recognized by the naked eye, but it can be clearly seen through the polarized lens.

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• Time of issue:2021-03-12
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