What does lens coating do? How to remove the coating on the lens

Coated lenses are new technologies that use optical thin films and vacuums to coat the surface of the lens with a layer of substance to improve the ability of the lens to reflect light and enhance or reduce light transmission.

1. Abrasion resistance.

Coated lenses have static electricity, easy to absorb dust, easy to rub lenses, and are not strong in abrasion resistance, but uncoated lenses are strong in wear resistance.

2. Radiation protection.

Coated lenses provide better radiation protection than uncoated lenses.

3. Technology. Coated spectacle lenses are new technologies that use optical thin films and vacuum to coat the surface of the lens with a layer of material to improve the ability of the lens to reflect light, and to enhance or reduce light transmission.

Summary. Hello, different lenses have different ways to remove lens coating:

1. The coating adhesion of the resin sheet is stronger than that of the glass sheet, and if the coating layer of the coated lens is removed, the lens will be damaged, there are two ways: chemical solvent and polishing, the chemical solvent to remove the coating will corrode the lens; The polished surface does not seem to have any effect, but it actually destroys the precise optical curve, which can be a big problem and harmful to the health of the eyes.

2. If it is a glass lens, you can soak it in a strong alkali for two hours, or buy a special release lotion to soak it to remove, but after removing it, the glass will also become opaque due to surface corrosion and need to be re-grinded.

3. If it is a plastic lens, there is no way to remove the lens coating.

How to remove the coating on the lens

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Hello, different lenses have different methods to remove the lens coating: 1. The coating adhesion of the resin sheet is stronger than that of the glass sheet, and the lens that has been plated will be damaged if the coating is removed, there are two ways: chemical solvent and polishing, and the chemical solvent will corrode the lens if the coating is removed; The polished surface does not seem to have any effect, but in fact, destroying the accurate optical curve of the early segment will cause big problems and harm the health of the eyes.

2. If it is a glass lens, you can soak it in a strong alkali for two hours, or buy a special release lotion to soak it to remove, but after it is removed, the glass also becomes opaque due to surface corrosion and needs to be re-grinded. 3. If it is a plastic lens, there is no way to remove the lens coating.

That coating is a coating that prevents reflections. Just don't wash with organic solutions, such as alcohol. Generally, there will be no damage when used normally;

Use a soft, lint-free cloth. Rough cloths, towels, paper towels, and the like can cause damage to the product, and don't spray it directly on the screen with a screen cleaner;

If you are particularly worried, go for a film, the main thing depends on your usage habits, do not touch the screen with your hands will not leave finger prints that are difficult to remove, and then do not eat near the computer, etc.

Hello, semiconductor coated lens is a special kind of optical lens, its role is to change the propagation direction, wavelength and intensity of light through optical effects such as reflection, transmission and absorption. Specifically, the role of semiconductor coated lenses includes the following aspects:

1.Reflection: Semiconductor coated lenses reflect light and cause it to change the direction of propagation, thereby reflecting and focusing light.

2.Transmission: Semiconductor coated lenses can transmit light in a certain wavelength range while blocking other wavelengths of light, so as to achieve functions such as light separation and modulation.

3.Absorption: Semiconductor coated lenses can absorb light in a certain wavelength range, so as to achieve the functions of suppression and noise reduction.

4.Enhancement: Semiconductor-coated lenses enhance the intensity of light, making it brighter and clearer, enabling functions such as optical imaging and measurement.

In general, semiconductor coated lenses are a very important optical component, which is widely used in lasers, optical fiber communications, solar cells, LCD displays and other fields, and plays a crucial role in improving the performance and stability of optical systems.

Hello, semiconductor coated lens is a special optical component, which is widely used in modern optical instruments, lasers, optical fiber communication and other fields. Its main function is to change the transmission and reflection characteristics of light to achieve specific optical effects.

The main functions of semiconductor coated lenses include the following aspects:

1.Reflected light: Semiconductor-coated lenses reflect light, allowing it to be reflected at specific angles and wavelengths. This property of reflecting light can be used to build various optical systems, such as lasers, optical instruments, etc.

2.Transmitted light: Semiconductor-coated lenses transmit light at specific wavelengths and reflect or absorb other wavelengths of light. This transmitted light property can be used to build optical filters, optical modulators, etc.

3.Inhibition of light reflection: Semiconductor coated lenses can suppress the reflection of light on the surface of optical components through special design and manufacturing processes, so as to improve the light transmittance and optical performance of optical components.

4.Enhance light reflection: Semiconductor coated lenses can enhance the reflection of light on the surface of optical components through special design and manufacturing processes, thereby improving the reflectivity and optical performance of optical components.

In short, semiconductor coated lenses are an important optical component, which has a variety of important optical functions and is widely used in the field of modern optical technology.

Hello, semiconductor coated lens is a special type of optical lens, the main function of which is to reflect, transmit and split light in optical systems. Semiconductor coated lenses are made by depositing one or more layers of thin film material on the surface of glass or other substrate material to form a thin film with specific optical properties. These films increase or decrease the reflectivity of the lens, allowing light to be focused or dispersed more accurately as it passes through the lens.

Semiconductor coated lenses are widely used in various optical instruments and equipment, such as lasers, optical microscopes, telescopes, photographic lenses, etc. In these devices, semiconductor-coated lenses can improve the performance of optical systems, improving image clarity, contrast, and color reproduction. In addition, semiconductor coated lenses can be used to make a variety of optical filters, such as polarizers, dispersors, and mirrors.

In short, semiconductor coated lens is a very important optical component, its role is not only simple to reflect and transmit light, but also to control the thickness and material of the film to achieve more crack and accurate optical control, which provides an effective guarantee for the performance of various optical devices.

Answer: The rough use of semiconductor coated lenses is to prevent ultraviolet rays, reduce the reflected light on the surface of the lens, make the vision clear, reduce the mirror reflected light, increase the light transmittance, solve the problem of taking bright photos under strong light, and increase the aesthetics, I hope it can help you, thank you.

Half-sock Jingbo conductor coated lenses have good reflective properties and can reflect back external light, thus achieving visual improvement. They also play an important role in eliminating ultraviolet rays and reducing damage to the eyes. In addition, semiconductor-coated lenses can also change the color of the light, making it softer, thus reducing eye fatigue.

They can also protect the eyes from external dust and other factors, enhance the immunity of the eyes, and reduce the occurrence of myopia.

1. The characteristics are different.

Defocal lenses are generally added to the glass with compounds such as titanium oxide, making the lens thinner and lighter, suitable for making high-gloss lenses, its refractive index is about 40, Abbe number is about 40, specific gravity, the disadvantage is that the dispersion is larger, easy to produce rainbow effect, and the nature is softer.

Lenses are made of optical materials such as glass or resin, which are transparent materials with one or more curved surfaces, and are often assembled with spectacle frames to form glasses after polishing, which are used to correct the user's vision and obtain clear vision.

2. The role is different.

The progressive band in the middle of the lens changes the power from top to bottom point by point. Gradient multifocal lenses have a gradient top power over the entire lens or the transition area of the lens, and are composed of four parts: the high beam area, the gradient area, the low beam area and the aberration area. Among them, the high light area is in the upper part, the gradient area is in the middle, the low light area is in the lower part, and the aberration area is in the lower part.

The main raw material of glass lens is optical glass, which has superior optical properties, good light transmittance and mechanical and chemical properties, constant refractive index, and stable physical and chemical properties; Secondly, glass lenses have a higher refractive index, the highest refractive index commonly used for lens use, and finally, glass lenses have a high surface hardness and are more resistant to wear.

3. The functions are different.

Lenses on the market usually include spherical, aspherical, double-sided aspherical, single-vision or multifocal visual designs, which can improve the realism of vision, alleviate visual fatigue, and improve the wearing experience of consumers.

When using the eye at close range, when the light is not good (too bright or too dark), the eyes will overadjust, and over time, it will affect the vision, so avoid these situations. If you are not sure about the light at home, you may wish to use a protective light pen for daily monitoring.

Coated lenses can reduce the reflected light on the surface of the lens, make the vision clear, reduce the specular reflected light, increase the light transmittance, solve the problem of taking pictures under strong light, and increase the aesthetics. Coated lenses protect against vision damage from ultraviolet, infrared and X-rays. Wearing coated glasses is not easy to fatigue, and the eyesight of the staff in front of the screen can be protected.

Coated lens is a new technology that uses optical thin film and vacuum to coat a single or multi-layer optical film of a certain thickness, so that the lens can obtain some new and original excellent properties, so as to improve the reflective ability of the lens, enhance or reduce the light transmittance, and increase the light transmittance of the lens to 98%.

The lens film is a very precise thing, which is difficult to find with the naked eye, except for the occasional reflection on the mirror surface that can feel the existence of the lens, so many people will ignore this when buying lenses, and suffer a loss on this, the lenses bought back are easy to get dirty, easy to cause dust, easy to scratch, and the lenses are not dried after washing, etc., I believe that many people have had such troubles.

In fact, with a good lens coating, these problems will be much better.

A good lens film can harden the surface of the lens, so that it is not easy to scratch;

A good lens film can increase the light transmittance of the lens, and the vision is more transparent and clear;

A good lens film can be waterproof, not afraid of washing, not afraid of walking in rainy days;

A good lens film can prevent oil stains, and it can be said to fingerprints;

A good lens film can be anti-static, does not absorb dust, and does not stick to powder;

I'm so tired ...... writing this row of sentences

Of course, the coating is not a panacea, but a good coating can indeed reduce a lot of troubles during the wearing process and make the lenses better to wear.

Answer: Coated lenses are new technologies that use optical thin films and vacuum to coat the surface of the lens with a layer of material to improve the ability of the lens to reflect light, and to enhance or reduce light transmission. There are two types of coated lenses: 1

Reflective filter lenses. The surface of the lens is plated with gold, silver, zinc sulfide, etc. The coating reflects visible, infrared and gamma rays to protect the eyes.

2.Anti-reflective lenses. The lenses are plated with magnesium fluoride, silicon dioxide, aluminum fluoride, etc., which can reduce specular reflection and improve the light transmittance of the lens.

The appearance is beautiful and helps with photography. Advantages of coated glasses: 1

The vision is clear, the specular reflection is reduced, and the light transmittance is increased. 2.Coated lenses can prevent ultraviolet, infrared, and X-ray damage to vision.

Wearing coated glasses is not easy to fatigue, and the vision of the staff in front of the fluorescent screen can be protected. 3.Coated glasses can reduce the reflected light on the surface of the lens, solve the problem of wearing glasses to take photos in bright light, and increase the aesthetic appeal.

4.The lens can withstand all kinds of adverse environments, high temperatures, rain, and seawater immersion without falling off. 5.

Pay attention when wiping the lenses, if there are oil stains on the lenses, you can rinse with neutral dish soap, not dry wipe.

Through the coated lens, it is clearer and more comfortable to see the eastern curve. An anti-reflective coating is applied to the surface of the lens to increase light transmittance and reduce reflection. Some also add ultra-fine particles and hard coatings to increase the hardness of the lens surface and make it less susceptible to scratches.

However, general coated lenses are not easy to scrub clean. Because the surface of the anti-reflective film has a special micro-reticulated and porous structure, it is easy to absorb greasy and not easy to wash, however, there is a new technology to solve this problem, which is to add a very thin and dense top film to the largest surface of the anti-reflective abdomen, so that the surface is smooth and clean, and has the effect of hydrophobicity and oleophobicity. Next, let's talk about the types and colors of the coatings.

2. I really don't know, I can't talk about it.

From an optical point of view, in order to improve the light transmittance of the lens, we coat the lens to increase its light transmittance from 90% to more than 98%. In order to achieve this effect, very precise calculations and practical corrections are required when designing the coating program. In the design, we should pay attention to the degree of light transmission of visible light, for the visible light wave from 450 nm to 730 nm, try to increase the transmittance, for the light wave on both sides, because our naked eye is not sensitive to it, it can not be considered.

The end result is that light waves of 450 730 nanometers can achieve a transmittance of more than 99%. The immediate effect of this is to reduce reflections and increase clarity. For example, when the flash shines on the coated lens, there is almost no reflection, on the contrary, it is white and blank, and you can't see your beautiful and bright big eyes.

The color of the original coated lenses was green, mainly to distinguish them from non-coated lenses, and at 515 nanometers, the reflection was enhanced, about 2%, so that the contrast was there, and the reflection was seen as a green film. This coating is the most standard anti-reflection coating, the best and oldest at present.

Later, in order to find a new competition or selling point, the designer changed the coating program to improve the reflectivity of blue light and reduce the green reflectivity at the same time, and the blue film lens appeared. This film has certain shortcomings: the reflection of blue light is too large, about 10-15%.

This is not because the designers deliberately raised it so high, but because it was found that if the blue light reflection is less than 5%, in the production process, workers will not be able to control the stability of the film color. Such lenses, from an optical point of view, reduce the light transmittance, and when there is light behind the person, there will be a strong reflection, especially the driver is not suitable for this kind of lens. Driving at night will have a distinct blue ghost or blue transverse light tubular reflection.

As for the red film, it is to increase the reflectivity of the red part, that is, at 700 780 nanometers, increase the amount of reflection, which also affects the light transmittance, but it is slightly better than the blue film, because we are not very sensitive to the red part. **Film, which increases the amount of red and yellow reflection, also affects the light transmittance. It does not conform to the principle of optical use, it is just a decorative effect.

Therefore, the best film should have the greatest light transmittance, the reflection is very weak, and the lower the color, the better.

**: Liwen Optometry).