What is a KR super tough lens?

In fact, he is right. Sunglasses are used outdoors, and you can participate in various sports by wearing ordinary sunglasses. In this case, of course, the chances of broken lenses damaging the eyes are getting higher and higher, and KR ultra-tough lenses are not afraid.

Okay, seriously answer your question.

KR ultra-tough lens is a patented product of Yue Mingjing lens (patent number: ZL 2008 1 0087 136.5), and it is a kind of KR ultra-tough material.

(Figure found on the Internet)

The linear structure of KR super-tough material molecules relative to ordinary lens molecules is made by the patented process of network cross-linking structure, which has stronger impact resistance, and the lens is not fragile and safer.

(Normal lens on the left and KR super tough lens on the right)

How strong is KR super tough lens? Look at two sets of experimental data:

When 90g steel ball falls at 1.27m, the super-tough lens does not crack or break, and its impact resistance is 5.6 times that of the national standard.

Under the pressure of 199KG, the experimental lens only reverses without breaking, which has more advantages in impact resistance.

It can provide strong protection for eyes. Does it make you feel safer after reading these experimental data?

So is there anything the subjects don't know?

Forgot to adopt, thank you.