What is the difference between sunglasses and sunglasses

I believe everyone has come into contact with sunglasses in their daily lives. These two types of glasses are actually similar. Glasses that protect against UV rays are usually called sunglasses, but there are also polarized glasses, so you should be careful to distinguish them when purchasing.

1. Nowadays, glasses that protect against UV rays are usually divided into two types: sunglasses (sunglasses) and polarized glasses. Sunglasses are the colored glasses we are familiar with that are used to block sunlight and ultraviolet rays. But in our daily lives, in addition to sunlight and ultraviolet rays, light will produce irregular diffuse reflection light when passing through uneven roads, water surfaces and other places, commonly known as "glare". The appearance of glare can cause discomfort and fatigue to the human eyes and affect the clarity of vision. Polarized lenses are sunglasses that can effectively filter out glare.

2. "There are many ways to identify polarized glasses. One of the simpler ways is to stack two polarized lenses vertically. The lenses will not transmit light. The reason is that the special design of polarized glasses only allows parallel light to pass through the lenses. When two lenses are stacked vertically, most of the light is blocked. When you buy, you can immediately know the authenticity and quality of the product with such a simple operation."

3. "There are usually identification plates for polarized glasses. To the naked eye, there are no black stripes, but with polarized glasses, you can see the black stripes that you can't see with your naked eyes! Sunglasses don't have that!"