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How do you know if the UV protection of sunglasses is good or bad?
- Sep 07, 2018 -


UV-resistant sunglasses generally have the following signs:

 

"UV400": the average transmittance of ultraviolet light having a wavelength below 400 nm through the lens is not more than 2%

 

"UV", "UV protection": indicates that the average transmittance of ultraviolet light having a wavelength below 380 nm is not more than 2%.

 

"100% UV absorption": It means that the lens can filter 100% of all wavelengths of ultraviolet light with an average transmittance of no more than 0.5%.

 

All FLYMOON sunglasses come with “UV400” standard lens!