What is the material of the polarized lens?

What kind of material is polarized lens?

The material of the polarizer is two types: resin polarizing mirror and glass polarizer.

1. Advantages of resin polarizing mirror

(1) Light weight.

(2) It is not easy to rupture: In case the lens is crushed, not only has few fragments, but also not sharp, which can minimize the situation of eyeball and facial injuries.

(3) You can dye: Resin lens is easy to dye, and it can be matched with clothing and popularity.

(4) It can cover ultraviolet rays: almost completely covering ultraviolet rays with a wavelength of less than 350mm, and the effect is far better than glass lenses.

(5) Strong anti -fog: Because the thermal conductivity of the resin lenses is lower than that of glass, it is not easy to cause blurred unknown due to steam and hot water and gas, and even if it is blurred, it will quickly retreat.

(6) Anti -dental remarks: Generally, high -heat and small volumes are prone to dental and spots in glass sheets, but if you encounter resin lenses, it will automatically bounce, and will not cause any traces on the surface of the lens.

(7) The surface reflection of the resin lens is lower than that of ordinary glass sheets, and it is not dazzling.

(8) There is no color difference between resin dual -light lenses. This is due to the entire structure of the resin dual -light lens.

(9) The range of resin lens anti -chemicals and solvents is extremely wide. Almost all household solvents and chemicals will not affect or damage it.

2. The disadvantages of resin polarizing mirror

(1) It is easy to abrasrate: The scratch resistance of the resin lens is worse than that of glass lenses, but it can be improved by surface hardening, but the effect is limited.

(2) It is prone to deformation when installing the frame: This is because the density of plastic lenses is lower than that of glass lenses.

(3) Infinitive high temperature: Although the resin is a thermal solid material, once a multi -layer membrane is plated, the surface of the multi -layer membrane may cause cracking due to high temperature.

3. Advantages of glass polarizing mirror

(1) Large hardness: The surface is not easy to be scratched, and it is more abrasion than resin.

(2) Large density: The loading is not deformed, which affects its polarizing effect because it is improper.The density of the resin tablets is smaller, and it is much stronger than the glass sheet. If it is not installed, or the shape of the glasses itself is not very consistent, it will deform, affecting the polarizing effect.

(3) Strong light transmittability: The light transmission of glass sheet is generally stronger than the lipid tablets and stronger clarity.

4. Disadvantages of glass polarizing mirror

(1) Heavy weight: Because its density is more than resin tablets, general glass glasses are heavier than resin glasses.

(2) Fragmentation: As we all know, the glass is fragile.Therefore, its ability to just fight is poor.

(3) Variest prices: The polishing technical requirements for polarizing glass chips are high and the production process is more troublesome, so general glass polarizers are used for mid -to -high -end glasses.

Principles of polarizing mirror

Polarized lens is only allowed to pass through the light of a specific polarized direction in natural light.We all know that light is transmitted in line, which is the particle nature of light; at the same time, light is also spread in the form of waves. This is the volatility of light, so light is also called light wave.Light waves have vibrations in all directions, and polarizing mirrors use the volatility of light.

The core of the polarizing mirror is polarizer, and the polarizing film has a two -way transparent thin film. It allows the light vibration of parallel and light transmittance shafts, and light vertical in this direction is absorbed. This phenomenon is called polarizer of light vibration.change.The light passed through the same vibration direction is called polarized light.The reflection light is absorbed vertically with the light transmittance shaft of the polarized film because the light is reflected.The polarizing mirror uses this principle, which effectively eliminates strong reflected light and scattered light, making the light softer, so that the scenery that people see is naturally clear.The polarizer can also effectively absorb 99%of UVA and UVB to protect the eyes well.It is the first choice for driving, hook fish, skiing, tourism, etc.

But polarizing mirror is not a perspective mirror. When buying polarizers, there will be a test film with some pictures, as long as the Polarized mirror can be seen.In fact, this test film is specially made. It is to use the polarizers to make the polarizer see the parallel light shot from the picture inside, so that you can see the picture hidden inside, not perspective.The method.Now some manufacturers have produced mahjong cards with polarizers, and parallel light images are embedded behind the card. As long as they wear polarizers, they can know what cards are from the back of the card!

How to identify the good or bad of polarized lenses

1. Under normal circumstances, polarizing Sunglasses are affixed with obvious electrostatic electrostatic standards on the lens, or the polarizer lens is marked on the product tag.

2. When buying polarized Sunglasses, you can test it with polarizing test films.Some of the patterns on the test film cannot be recognized with the naked eye, and the polarized lens can be clearly identified.

3. According to the display principle of the LCD screen, observe the liquid crystal screen such as phones through polarized lenses, when the screen is rotated, the screen will also turn into a black screen with rotation.Essence

The advantages and disadvantages of the lens are the decisive factor to measure the quality of a pair of glasses, so consumers must be careful when buying the lens.glass lens is wear -resistant, but relatively speaking, its weight is heavier than other materials, and it is also easy to break.Popular resin lens: This kind of lens is lighter than glass lenses, impact resistance, and is not easy to break, but the hardness is low, so it is easy to get hair and it is easier to have scratches.

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