Lenses that roughly divided into: the kinds of antireflection protective lens, color lens, color lenses, polarized lenses and change color lenses etc. Five.
Ms antireflection protective lens: sunglasses factory YC9702 sunglasses C3 dark lenses/dazzle colour blue this lens is in the surface coated with a thin layer of magnesium fluoride, in order to prevent the strong light reflection, let you see things more clearly and without strong light interference.
To test whether your glasses really using antireflection lenses, glasses can be on the light source, if you can see purple green reflection, then said lenses do have painted antireflection protective film.
Colored lenses: ray-ban RB3449 004/55 men sunglasses silver/lens dazzle colour blue is also called 'dyeing lens', is in the lens production process, add some chemicals, let the lens present color, to absorb certain wavelengths of light.
This is the most commonly used sunglasses lens type.
Color lens: the lens effect and color lenses is the same, only is made in different ways, it is the color painted on the surface of the lens, the most well-known is 'gradually layer type the color of the lens', the color is the deepest, and then gradually down.
Is the general prescription sunglasses is more color way lenses.
Polarized lenses, sunglasses factory YC9707 lady sunglasses C8 hawksbill/dazzle colour yellow to filter the sun shone on the water, land, or snow in the direction of equality of dazzling light, special coating on the lens in vertical, is called a polarized lens.
The most suitable for outdoor sports,
For example: offshore activities, skiing and fishing)
Color lenses, also some people called 'photographic lenses.
Because chemicals in lenses to join silver halide, let originally colorless lens, meets the glare, becomes colored lenses, for protection, so it is suitable for indoor and outdoor use.
related: sunglasses polarized sunglasses