hat
Linèt solèy kòb kwiv yo ka bloke dezagreyab ekla ak pwoteje je ou nan reyon UV. Tout bagay sa yo se akòz filtè a poud metal, ki "chwazi" limyè a jan li antre. Linèt ki gen koulè ka seleksyone absòbe yon pati nan gwoup la ki fè moute reyon solèy la paske li itilize poud trè bon metal.
eng
The copper sunglasses can block unpleasant glare and protect your eyes from UV rays. All of this is due to the metal powder filter, which "selects" the light as it enters. Colored glasses can selectively absorb part of the band that makes up the sun's rays because it uses very fine metal powder.