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How to Tell If Sunglasses are Polarized
publisherZOHO Glasses
time2022/08/02
- What are polarized lenses?
How to identify polarized lenses?
What sunglasses does ZOHOGlasses have?
I believe that you have used a lot of sunglasses and choose different lenses for different outdoor activities. There are currently 8 widely used lenses for sunglasses, namely 1, PC sheet 2, glass sheet 3, resin sheet 4, nylon sheet (optical grade memory nylon sheet TR-90) 5, AC sheet 6, polarizer 7, eccentric 8. Color-changing film
The next thing we're going to talk about is polarized lenses. What are polarized lenses? Its function is to only accept light from one direction, and block light from other directions. It uses the principle of blinds to filter stray light, so that we can see things more clearly.
The main working principle is that the polarized lens is composed of a total of 7 layers of thin sheets. The outermost two layers are super hard wear-resistant layers; the second and sixth layers are shatter-resistant reinforcement layers; the third and fifth layers are UV filter layers; The layer is a polarizing filter layer; the overall structure is compact and unique. After testing, it can filter out 99% of dazzling and random reflected light, 96% of harmful ultraviolet rays, and has special functions of anti-shattering and anti-wear.
How to identify polarized lenses?
Method 1. Use the test piece provided by the manufacturer, through the polarizer, you can filter the stray light and see the image that you can't see normally;
Method 2: Horizontally overlap a pair of known polarizers and another pair of unknown sunglasses lenses, then rotate the polarized sunglasses lenses, and find that the shading effect of the two lenses changes from shallow to dark, indicating that the second pair is also polarized.
What sunglasses does ZOHOGlasses have?
We can make any sunglasses, different types of lenses, different materials or styles. Engaged in the eyewear industry for more than 20 years, we have a professional OEM&ODM team and a top designer team. We believe that here you can find your own styles and discover more potential products.