Serious score of more than 200 points Polarized lens knowledge

Light principle: Light is partially polarized when reflected from the surface of an object, resulting in glare. The reverse effect of glare is to enhance brightness, reduce color saturation, blur the outline of the object, and make the eyes tired and uncomfortable.

Polarized spectacle lenses are made according to the principle of polarization of light, and have a unique function of preferentially eliminating glare, which has a special effect on the driver, which can improve vision and increase the pleasure of the ride.

Advantages of polarized spectacle lenses:

The reflected glare formed by sunlight shining on sand, water, snow and road surface often causes eye discomfort and fatigue, and the polarization angle and curvature of polarized sunglasses are designed according to the principle of precision optics. This irregular reflected light can be effectively arranged and filtered out (such as the principle of blinds), and the light is arranged into the same direction of light into the eyes, so that the surrounding scenery looks soft and not dazzling.

Non-polarized sunglasses only have the effect of light, and ordinary lenses cannot filter light, so they can only reduce the intensity of glare, ultraviolet light, etc., and cannot completely block these harmful rays, so their function is only to reduce eye damage. Polarized lenses have polarized properties, so they can completely block glare caused by various factors such as scattering, refraction, and reflection.

Polarizers are made according to the principle of polarization of light, the main function of polarization is to effectively eliminate and filter out the scattered light in the beam, so that the light can be put into the visual image of the glasses on the correct transmittance axis, so that the field of vision is clear and natural, and the non-polarizer is easy to puncture the glasses because of the light in summer.

Generally, sunglasses only use the effect of light reduction, because ordinary lenses cannot filter light, so they can only reduce the intensity of glare, ultraviolet light, etc., and cannot completely block these harmful rays, so their function is only to reduce the damage to the eyes.

Because polarized sunglasses have the function of polarizing the light, they can block all harmful light without affecting the transmission of visible light, which can truly protect the eyes. In addition to the basic anti-ultraviolet function, polarized sunglasses also have anti-glare, road reflection light, water surface scale light, etc., suitable for driving, fishing, traveling, and daily wear.

Sunglasses are usually divided into two types: sunglasses (sunglasses) and polarizers, and sunglasses are tinted glasses that we are usually familiar with to block the sun and ultraviolet rays. However, in our daily life, in addition to sunlight and ultraviolet rays, light passing through uneven road surfaces, water surfaces and other places will produce irregular diffuse light, commonly known as "glare". The appearance of glare can cause eye discomfort and fatigue and affect the clarity of vision, polarizers are sunglasses that can effectively filter out glare.

What is polarizer mainly used for?

Polarized glasses are sunglasses equipped with polarized lenses, which are mainly divided into: true color glass polarization, ordinary glass polarization, nylon polarization, PC polarization, TAC polarization. The highest cost performance is higher polarization of true color glass, and the lowest cost performance is TAC polarization** lower, I hope it can help you.

A favorite of polarized sunglasses drivers and fishing enthusiasts.

Polarizer Polarizer is a lens made according to the principle of polarization of light

It is used to remove and filter out the direct light in the beam DAO, so that the optical line can be put into the eye visual image on the correct light transmission axis, so that the field of vision is clear and natural. It is mostly used for sunglasses and camera lenses. It works by selectively filtering light from a certain direction.

By filtering out many polarized light in the diffuse reflection, the intensity of light in the sky is reduced, the sky is darkened, and the contrast between the blue sky and the white clouds is increased. In the actual shot, you need to look at the viewfinder and rotate the front mirror, the effect is most obvious in the viewfinder when the sky is darkest, and the difference between the darkest and the most revealing is 90 degrees. You can go to the darkest and brightest as needed.

The polarizer is like the principle of blinds, the light is adjusted to the same direction and enters the room, which naturally makes the scene look soft and not dazzling, and the polarizer can effectively eliminate and filter out the diffuse reflection light in the beam, so that the light can be put into the eye visual image on the correct light transmission axis, so that the vision is clear and natural.

Blind principle: filter out the glare and only allow a certain light to pass through, which makes the light softer and less dazzling.

The main differences are, different properties, different functions, and different applications, as follows:

First, the nature is different.

1. Polarized lenses.

Polarized lenses are lenses that only allow light in a specific polarization direction in natural light to pass through, and a special coating in the vertical direction is added to the lens, which is called polarized lenses.

2. Color-changing lenses.

According to the principle of reversible reaction of light color interchange, the lens can quickly darken under light and ultraviolet irradiation, block strong light and absorb ultraviolet rays, neutrally absorb visible light, return to the dark, can quickly restore the colorless and transparent state, and ensure the light transmittance of the lens.

Second, the role is different.

1. Polarized lenses.

Due to the effect of light filtering, things will be darkened when wearing polarized lenses. It filters the gare of the sun on water, land or snow in equal directions.

2. Color-changing lenses.

The main function is to prevent sunlight, ultraviolet light, glare and glow.

Third, the application is different.

1. Polarized lenses.

Best for outdoor sports such as sea activities, skiing or fishing. It is a necessary equipment for car owners and fishing enthusiasts, it can help motorists filter out the oncoming high beams, so that fishing enthusiasts can see the fish drift on the water surface.

2. Color-changing lenses.

It is suitable for both indoor and outdoor use.

The photochromic lens is made of silver halide elements, and the color changes according to the intensity of the ultraviolet rays, the stronger the ultraviolet rays, the darker the ultraviolet rays, and the weaker the ultraviolet rays, the lighter the lighter. It can be equipped with Gangji quick-change lenses, which can become deeper, faster and easier to clean, and super wear-resistant!

The composition of the lens raw materials is different, the polarizing lens is added with a polarizing film, and the photochromic lens contains a photosensitive material (generally silver bromide).

The optical properties of the two lenses are different: the polarizer acts as a polarizing filter for the light, while the chromic lens acts as a blocking effect on the light. Therefore, polarized lenses have the effect of reducing the reflection of non-metallic materials, while photochromic lenses do not. The color change sheet only has the effect of blocking the light.

Polarized lenses are tiny gratings in the lens that filter out polarized I light and some harmful stray light. Chromic lenses are silver halides added to the lenses, which then react with the ultraviolet rays in the sunlight to cause the lenses to change color. Although they are all used in the summer, you can choose according to your needs.

Polarized light is one-way light that avoids diffuse reflection.

Polarized lenses.

In order to filter out the sun's equally glaring rays on water, land or snow, a special paint is added to the lens in a vertical direction, which is called a polarized lens. It is best used when exercising outdoors.

Tinted lenses. Because the chemical substance of silver halide is added to the lens, the originally transparent and colorless lens will become a tinted lens when exposed to strong light for protection, so it is suitable for indoor and outdoor use at the same time.

According to the function, polarizers include transmissive polarizers, reflective polarizers, semi-translucent and semi-reflective polarizers, and compensating polarizers.

According to the polarizing material, polarizers include the following:

The metal polarizer directly adsorbs gold, silver, iron and other metal salts with the polymer film, and then reduces the rod-shaped metal to have a certain polarization ability.

Based on the combination of PVA and iodine molecules, iodine-based polarizers have the advantages of high transmittance and high polarization, but their resistance to high temperature and humidity is poor. The cost of this polarizer is low, so the market share is relatively high, and it has a wide range of applications.

Dye-based polarizers are directly adsorbed on PVA with dichroic organic dyes, and then extended and oriented to make them have certain polarido performance, but the disadvantages are low transmittance and polarization, and the advantage is that it is resistant to high temperature and humidity, so it is mostly used in automobiles, ships and other industries.

According to the temperature, it is divided into ordinary polarizer and wide temperature polarizer;

According to the transmittance, it is divided into ordinary transmissive sheet and high transmissive sheet;

According to the background color, it is divided into gray and white polarizers and color polarizers.

Identification can be made by the color of the lens.

The polarizer is replaced because the polarizer facing the eye is frosted to dissipate surface reflections and scatter light to increase the viewing angle of the LCD. For the projector, any scattering will cause a loss of light, and the ideal state of the LCD used in the projector should be a 0-degree viewing angle, that is, if you look at the LCD in the vertical direction, there will be no light.

Polarized lenses are globally recognized as the most suitable lenses for driving. When light is reflected from the surface of an object, it is partially polarized to produce glare. The opposite effect of glare - enhance brightness and reduce color saturation; Blurring the outline of objects, making eyes tired and uncomfortable.

The polarizer is made according to the principle of polarization of light, which has a special function to effectively eliminate glare, so that the driver can improve his vision and increase the pleasure of driving.

The pressure-sensitive adhesive used is a high-temperature-resistant and moisture-proof pressure-sensitive adhesive, and the PVA is specially impregnated (dye series products), and the polarizer made is a wide-temperature polarizer; The anti-ultraviolet polarizer can be made by adding ingredients that prevent the passage of ultraviolet rays to the pressure-sensitive adhesive used; The birefringence optical compensation film is compounded on the original transmission sheet to make a polarizer for STN.