CR39, dispersion rate 58, PC dispersion rate 29, NXT dispersion rate 45, the closest to CR39.
Casting production, no internal stress and no rainbow phenomenon.
Tough material, excellent anti-collision performance, commonly known as anti-shooting film, also meets the requirements of environmental protection.
4. Good chemical resistance, and can conform to various material frames without worrying about cracking.
5 The specific gravity is 1. 1 1, lighter than PC 10% and lighter than CR39 15%.
The shielding rate of 6 NXTPL is 99.99%, and the polarizing film is Mitsubishi of Japan.
At present, many brands are using Rudy/LV/Zeroloh/Cerruti/Givenchy/police.
8 Hardness degree: soft (softest) NXT SOFT54 is similar to rubber soft. Rudy has patent problems and needs to check whether it has expired.
There is no patent for the medium-sized NXT SOFT70.
Standerd NXT has no patent.
5, optical correction
Many nearsighted people will be worried if they want to wear sunglasses in summer. Imagine contact lenses inside and sunglasses outside. Although this problem has been solved, the hygiene requirements for contact with eyes are very high. Because the glasses are too close to the eyes, bacteria are more likely to enter the infection. Then NXT provides a normal optical correction range and is a good outdoor solution for myopia.
Step 6 show up
According to official data of NXT Soft, NXT can block 100% of UVA and UVB, and its weight is lighter than traditional glass 128%, CR39 lens (resin lens) 16% and PC lens 10%.
7. Price
Introduce the excellent performance of NXT, which is estimated to touch many people. However, this sunglasses with the world's most advanced technology is naturally expensive. Generally, the official retail guide price is above 1,000 yuan. The price of sunglasses for this kind of lens can be imagined.