Glasses that prevent ultraviolet radiation are usually divided into two types: sunglasses (sunglasses) and polarized sunglasses. Sunglasses are commonly known as colored glasses used to block sunlight and ultraviolet radiation. In our daily life, in addition to sunlight and ultraviolet rays, light passing through uneven roads, water surfaces, and other places will generate irregular diffuse reflection light, commonly known as "glare".
The appearance of glare can cause discomfort and fatigue in the human eye, and affect the clarity of vision. polarized sunglasses are sunglasses that can effectively filter out glare.
There are many ways to distinguish polarizers, and one of the simpler ones is to stack two polarizing lenses vertically, which will cause the lenses to become opaque. The reason is that the polarizing lenses are specially designed to only allow parallel light to pass through the lenses, and when the two lenses are stacked vertically, a large part of the light is blocked. With such a simple operation, everyone can immediately know the authenticity and quality of the product when purchasing
- At the same time, there is usually a discrimination board for identifying polarizers. Although there are no black stripes to the naked eye, wearing Polarizers can make you see black stripes that you don't see to the naked eye! Sunglasses do not! "Polarized sunglasses refer to colored glasses that use the principle of polarization to block sunlight and ultraviolet rays, effectively filtering out glare.
