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introductions

With so many introductions of sunglasses been told earlier, in today’s passage, we are going to talk about the ranking list the sunglasses, I bet you’ve heard several brands of sunglasses, no matter luxury international brand or some niche brands.
Ray-Ban (established in 1930, especially designed for US Air Force pilot at the initial stage);
Buick (one of the top ten biggest sunglasses brands, a 1991 Taiwan trade group brand);
Kalikali (one of the top ten biggest sunglasses brands, Italy famous brand, 100% hand-made mirror!)
Prosun (one of the top ten biggest sunglasses brands, famous brand from America);
Lizard fashion glasses (one of the top ten biggest sunglasses brands, world famous brand);
PORTS (one of the top ten biggest sunglasses brands, a Taiwan brand entered the mainland in 1992);
GUCCI (originated from Florence, Italy in 1923);
Dior Dior (founded by Christian Dior in 1946, France);
PARIM (ten Sunglasses brand, world famous brand);
AUGSDA (one of the top ten biggest sunglasses brands, an international brand came from Britain)

Lenses

To be specific, what are lenses of Fake Ray-Ban Sunglasses made of?
Ray-Ban Sunglasses generally have the following 2 categories:
1. Ray Ban Resin / plastic lenses: low cost, is also known as “bulletproof glass” material safety lenses. In fact, there will be no brittle chip cracking only, optical stability is also in general level;
2. Ray Ban Glass lenses: with high definition, optical indicators are excellent, strong wear resistance, heavy weight, easy to fracture.
The comparison is as follows:
Optical glass lenses
The Ray Ban lens density is high, the lens quality is heavy, but can provide the best visual field, the crystal brightness and the transmittance are higher than the film, and it is not easy to cause the dust compare with the film, the hardness is high, is not easy to scratch.
Resin, plastic lenses
The weight is 50% lighter than that of glass, and it is not easy to scratch. It is often transparent when the lens leaves the factory, but after dyeing, there are a variety of colors choices, the color depth can be adjusted.

Material

And what’s the polarized Cheap Ray-Ban sunglasses made of?

Let’s learn the oxide mixture of Optical glass. Such as the high purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium and barium according to a specific formula. And melt in the platinum crucible in high temperature, to stir well using ultrasonic. And then remove the bubble, slowly cooling after a long time so as to avoid glass block stress. The glass block after cooling is the optical instrument to check whether the purity, transparency, uniformity, refractive index and dispersion ratio are in conformity with specifications.
You may notice that there is a thin layer of shiny film on the lens surface, so what is it?
The film can effectively prevent glare and reduce fatigue.