There are several reasons windshields aren't polarized. Simple one, cost. Polarization is an expensive process and to do so on such a large piece of glass is cost prohibitive for most manufacturers.
How can you tell if your windshield is polarized?
Now the simple answer to your question is automotive and most other windshields are not polarized although many contain UV filters. You can test this, just take a polarized lens and hold it away from your face and turn it 90 degrees , if things didn't go dark, it's not polarized.21 sept 2009
Can you polarize clear glasses?
Since the main goal of polarized sunglasses is to reduce brightness and glare, clear lenses would not be able to block the light from a specific direction. This is because the iodine crystals in the lenses are aligned horizontally. ... Thus, it is not possible to make polarized lenses without a slight tint to the lens.1 sept 2019
Why do polarized sunglasses make car windows look weird?
Those little dots or lines you see are sections of the glass that partially polarize light on a horizontal axis. Since your polarized lenses have a vertical axis, that light is blocked, which is why it appears as dark dots or lines.17 ago 2015
Can tinted lenses be polarized?
Traditional polarized lenses can react with your windshield's tint and cause blind spots you don't normally have. Mirrored lenses are a safer alternative, because they reduce glare without creating blind spots. Most polarized lenses come with tinted shades.2 nov 2020
According to Car and Driver Magazine, a good quality car window tint can increase protection. If you buy a good quality window tint for your car's windows, it can help protect you from ultraviolet radiation. It can also increase the inside of your car's protection.29 sept 2020
Should you get your front windshield tinted?
The answer is a definite yes. In fact, any amount of windshield and window film will provide at least some benefit in protecting your car from the following: Heat. Excessive brightness.