How to test polarization glasses with and without a smartphone Bashny.Net

It’s summer, many of us are looking for sunglasses this season. Sellers are happy to accept customers and offer different models to choose from. Often in the store you hear the question: “Do you have glasses with or without polarization?”



Most people find it difficult to answer because they don’t know what it is. For those who don’t know, polarization is a special spray on the lenses that blocks the horizontal rays of the sun. With the help of a filter, such glasses reflect glare and save the eyes from bright sunlight. Why do we need this effect? Such glasses, for example, can be useful for those who are driving in clear weather. Or they can help out those who play outdoor sports.

How to check points for polarization Comfort is never superfluous. These glasses are more expensive. But if you're willing to pay a little extra, polarized glasses will come in handy. In addition, you need to be able to determine the model with the right filter. How to check for polarization glasses, we will talk in this article.



With the help of the image, the honest seller should offer to check the glasses himself. Most often, there is a special test in the store. It is necessary to look at the picture with glasses. It's very simple -- the image has to change when you look at it through the filter.



First, look at the picture without glasses. Put your glasses on and look again. Then draw conclusions about the quality of polarized glasses.

The essence of this method is to compare glasses with another model. Of course, this is a polarization model.



Take two pairs of glasses and combine them with adjoining lenses. Then turn one of the glasses 90 degrees so that the axis in the center of the lenses remains in place. If the glasses are polarized, the center of the lens will become darker after turning.

With the help of a smartphone, you can check glasses using the screen of a tablet or smartphone. Only the screen must be liquid crystal. A few simple actions will be required.



Place the glasses opposite the on screen at a distance of 0.3-0.4 m. Then start turning them, continuing to hold the lenses parallel to the screen. The lenses should become darker or generally opaque when the glasses are upright. If this does not happen, draw your conclusions about the quality of polarization glasses.



These tips will help you make the right choice when buying. We also recommend watching this useful video about polarizing glasses.

https://www.youtube.com/watch? v=C5qTk8FGC9I

If you get a fake and you don’t check the glasses in the store, all you have to do is believe in the honesty of the seller. We recommend buying glasses only in trusted stores. Buying points in the markets or in the metro crossing, you risk overpaying for cheap. I am sure that this article will help you when choosing glasses. Which sunglasses do you prefer?