The cycling sunglasses have these classification: Anti – reflective protective lens, color lens, coloring lens.
Anti-reflective protective lenses: these lenses are coated with a thin layer of magnesium fluoride to prevent glare from reflecting, allowing you to see more clearly and without interference from strong light. To see if your glasses are really anti-reflective, point your glasses at the light source. If you see purple and green reflections, that means there is an anti-reflective coating on the lens.
Tinted lenses: also known as “tinted lenses,” lenses are made with chemicals that give the lens a tinted color that absorbs light at a specific wavelength. This is the most common type of lens used in sunglasses.
Color lens: this kind of lens presents the same effect as color lens, but it is made in a different way. It paints the color on the surface of the lens. Generally has the degree the sun glasses to deal with the lens by the coloring way.
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