The difference between polarized sunglasses and ordinary sunglasses

Sunglasses are liked by many people now, and everyone must have at least one pair of sunglasses, but many people always give priority to polarized sunglasses when choosing sunglasses.

Because polarized sunglasses can filter all kinds of harmful light to the eyes, it is also a kind of sunglasses that many drivers prefer, so what is the difference between polarized sunglasses and sunglasses? Let's take a look together.

The difference between sunglasses and polarized sunglasses
1. Sunglasses use the dyed color on the tinted lens to weaken all the light to the eyes, but all the glare, refracted light and scattered light enter the eyes, which cannot achieve the purpose of seductive eyes, but can only prevent ultraviolet rays.

Polarized sunglasses can filter out glare, scattered light, and refracted light, and only absorb the reflected light of the object itself, truly presenting what you see, reducing fatigue, increasing color saturation, making the field of vision clearer, and playing the role of eye-care and eye protection. role.

2. Sunglasses can only be used to block ultraviolet rays, and the blocking rate of ultraviolet rays is relatively high, but in addition to ultraviolet rays, there are many other lights, commonly known as glare, which can cause eye fatigue and affect vision.

Polarized solar gold can block glare very well, and can also block ultraviolet rays at the same time, and the blocking rate of ultraviolet rays is relatively high.

3. Sunglasses use their dyeing to block all light. The object you see will change the original color of the object. Whatever color the lens is, the color of the object will be covered. Especially when wearing it to drive, there will be a huge color difference in the recognition of traffic lights, and in severe cases, it may even fail to recognize green lights, becoming a traffic hazard.

Polarized sunglasses are based on the principle of polarized light, and the objects seen will not change color. Even after entering the tunnel, the polarized lens will not affect it.

How to distinguish the authenticity of the polarizer?
1. Mobile phone identification.

Take a mobile phone with LCD screen, adjust the brightness of the mobile phone to the maximum, then observe the LCD screen through the sun lens, pay attention to keep the lens parallel to the display screen, and then slowly rotate the phone.

When the real polarizer is rotated to a certain angle, the light of the display screen passing through the lens will be obviously dimmed, or even pitch black. If it does not dim, then it is not polarized sunglasses.

2. The lenses overlap.

Stack two polarized lenses vertically. If it is opaque, it means that it is a real polarized lens. Because the special design of the polarized lens only allows parallel light to pass through the lens, when the two lenses are stacked vertically, most of the light will pass through the lens. blocked.

3. Real experience.

In the sun, choose a pair of sunglasses and a pair of polarizers, you can observe the sun, polarizers will be much more comfortable than ordinary sunglasses.

4. Price reference.

The difference between polarizers and sunglasses is also clearly reflected in the price. At present, the price of general polarizers on the market is around a few hundred yuan, while the price of professional outdoor polarizers ranges from thousands to tens of thousands. Relatively much more expensive than ordinary sunglasses.

Do polarizers really work?
The polarizer can effectively filter the astigmatism in the light, so that the light can enter the visual image of the eyes on the normal transmission axis, so that the vision is clear and natural, without dazzling.

Polarizers are generally used on sunglasses, which are more suitable for drivers or people who love fishing, because polarizers can effectively filter the oncoming high beam lights, and also filter out the sunlight refracted by the water surface when fishing.

Polarizers can filter more than 99% of ultraviolet rays in sunlight, and at the same time block strong light, which is better than ordinary sunglasses, because polarized sunglasses do not affect vision, and at the same time, they will not cause chromatic aberration, and can effectively avoid the damage of ultraviolet rays to the eyes .

However, the current polarizers on the market are generally made of fibers sandwiched with polarizing film, which is soft in texture and unstable in arc bending. After the lens is assembled into a frame, it is difficult for the lens to meet the optical refractive standard, resulting in loose and deformed images. And not durable.

Although polarized lenses can filter out many irregular light interferences and avoid the occurrence of glare and glare, but if the arc of the lens itself cannot be in the optical standard refractive state, then the polarization effect will be relatively weak, which will affect the authenticity of the image. The durability is not good.