How can I get into the hot indoor spectacle lens without fogging when the temperature is low outside

Rub both sides of the lens with a semi-dry soap, then smooth and polish. With this method, even if you take a bath in the bathroom, the lenses will not fog up.

Apply soap to the lenses, because they are oily, and the water mist will not run to the lenses.

Inserting lenses with toothpaste can also prevent fogging.

Apply a little wash to the lenses and spread them open.

Just take your glasses off and you're good to go.

What is the reason why wearing glasses from outside to indoors in winter will cause white fog on the glasses?

Because the temperature of the glasses is very low when the temperature is very low outside, the air in the warm room liquefies when it meets the cold lenses to form small water droplets, which adhere to the mirror surface and make the lenses blurry. That is, the said glasses will be covered with white fog.

What is the principle of small water droplets when the warm indoor air meets the cold lenses?

The principle of liquefaction. First of all, explain that liquefaction is the process of changing from a gaseous state to a liquid state; There are two ways to liquefy: cooling and pressurization.

Liquefaction is caused by the condensation of water vapor floating in the atmosphere into small droplets when it encounters cold air in the air. That is, the water vapor in the warm room liquefies when it encounters the cold air on the spectacle lenses that comes in from outside in the cold winter, and it becomes a white mist that adheres to the mirror. This is the change of matter, in addition to liquefaction there is also sublimation, condensation, vaporization.

Substances change differently under different conditions.

Vaporization: Wet clothes are dried, and the water sprinkled on the ground in the hot summer dries quickly. Ning Hua:

Frost, ice flowers, rime. Sublimation: Mothballs become smaller.

Liquefaction: dew, white mist, blurred lenses. Vaporization, the process of changing a substance from a liquid state to a gaseous state, the vaporization process requires endothermy, two ways of vaporization, evaporation and boiling, factors that affect the speed of evaporation, the temperature of the liquid, the surface area of the liquid, and the flow rate of the air on the surface of the liquid.

The boiling point is related to the air pressure on the surface of the liquid, the higher the air pressure, the higher the boiling point, evaporation and boiling contrast. Liquefaction, the process of changing a substance from a gaseous state to a liquid state, the liquefaction process releases heat, common liquefaction phenomena, the formation of dew and fog, three common white gases, white gas when boiling water, white gas exhaled from the human mouth in winter, and white gas around popsicles in summer. A common phenomenon of sublimation, frozen clothes in winter dry out of the posture and patience, the tungsten filament of the incandescent lamp becomes thinner, the mothball ball becomes smaller or disappears, the dry ice is gone, and the snow in the back sun is gone.

Condensation, the process of matter from gaseous direct trapping to solid state, the condensation process releases heat, common sublimation phenomena, frost, tree hanging, window flowers, iodine vapor directly turns into solid iodine when cold, etc.

In addition to the fact that there are many phenomena that make use of liquefaction in life. For example, household liquefied petroleum gas is liquefied at room temperature using the method of compressed gas per mu volume and stored in steel tanks, and the same is true for liquid lighters.

Liquefied oxygen is separated by collecting air according to the boiling point of the gas, reaching various boiling points. For example, the liquid fuel and oxidizer on a rocket are obtained at a fairly low temperature using the volume of compressed gas.

Evaporation is the reverse process of liquefaction. Liquefaction requires exothermic heat to increase the temperature of the surrounding air. Common liquefactions are present:

Formation of fog and dew. The white breath exhaled from the mouth in winter. White gas coming out of a popsicle just taken out of the fridge.

In winter, people who wear glasses always have such troubles in winter, that is, as soon as they go out or go into the room from the outdoors to the indoor, there will be fog in a place with a large temperature difference, which will particularly affect the clarity and beauty of the glasses, and they have to be wiped clean at any time, resulting in inconvenience. So, what to do if the lenses fog up? Baby Eagle shares with you!

Tools Raw materials.

Glycerin soapy water.

Method steps.

Here I will teach you a good way to prevent glasses from fogging. The easiest way is to buy a bottle of anti-fog water at the supermarket and lightly spray it on the lenses, which can play an anti-fog role.

Of course, we can also make our own anti-fog water, which requires 30 ml of glycerin and 10 ml of soapy water, and then put them in a spray bottle and shake them well. When using, you only need to spray the homemade anti-fog water on the spectacle lenses, and then wipe it clean with a lens cloth, which can also achieve the effect of anti-fogging, which is simple and practical.

How does this work? Because soap contains oil, rubbing it on the lenses can effectively prevent the lenses from fogging. At the same time, adding glycerin to soapy water can slow down the volatilization of soapy water, making the dehazing effect more durable and effective. You might as well give it a try.

How do I prevent my glasses from fogging up in winter?

I heard that with this artifact, the glasses no longer have any worries in winter, is it true?!

【Clear Ophthalmology Eye Recovery】

Buy a bottle of anti-fogging agent for glasses.

Generally, it is 5 10 yuan a bottle, spray on the lens to wipe it, not only can clean, decontaminate, anti-frost, anti-fog effect is quite obvious, generally can ensure a day or two without fogging. But remember, don't buy a fake product cheaply, after all, it is a chemical agent, so close to the eyes, if you use a fake, the chemicals attached to the surface of the lens will cause a lot of damage to the eyes due to the evaporation of heat.

Buy a cloth for anti-fog glasses.

Well, it's a little expensive, about thirty or forty, and there are fifty or sixty. This is a specially treated glasses cloth, which will be a little damp to the touch, but it is very effective, not only to prevent the lens from fogging, but also to protect the lens film very well. At present, most of the domestic anti-fog glasses cloth is exported, so most of them are in line with safety regulations.

It is usually sold at regular eyewear retailers.

Clean the lenses with soap and dish soap.

Remember not to use soapy water directly, as that will damage the lens film. The correct way is to wipe the spectacle lenses with a semi-dry, somewhat soft soap, and then polish them evenly with a glasses cloth, without water. You can also wipe the spectacle lenses with a little dish soap dipped in a light cloth.

Remember, it's a little bit! This prevents the spectacle lenses from fogging up. In the same way, you can also use this method to wipe the windshield of the car, so that you are not afraid of the glass fogging!

New skills, hurry up and get them!

Comes with a pair of anti-fog lenses.

Well, I won't go into too much detail about that. The only thing to say is that at present, it is mainly divided into two kinds of anti-fog lenses, a domestic anti-fog and anti-fog lens (in fact, it also belongs to a company in the United States in the strict sense), which is cost-effective and has a good effect, **Most consumers can accept it; There is also an imported Essilor anti-fog lens on sale, and the effect is also relatively good. However, it's a little expensive, and the average salaried person may not be able to afford it, a little distressed!

Homemade anti-fogging agent for lenses.

Haha, this is the most effective, economical, safest, and lowest cost way found according to the principle of anti-fog spray. First of all, you need to prepare 30ml of glycerin, 10ml of soap solution. Mix the two and shake well.

Then add a few drops of turpentine and shake well. When using, as long as the homemade Esicco anti-fog agent is slightly applied to the lenses, and then gently wiped with a glasses cloth, the anti-fog can last for 3 to 4 hours. Even the problem of glasses fogging up when wearing a mask can be solved!

The principle of lens anti-fogging agent is that soap contains grease components, and if soapy water is applied to the lens, the lens will not be easily stained with water vapor. But applying soap directly to the glasses for anti-fog didn't last so long, and the effect was not so good, so glycerin was added to slow down its volatilization.

Beijing Clear Ophthalmology wishes everyone a clear vision of the world!

Fogging on the eyes generally occurs when entering a warm room from a cold outside, due to the low temperature of the glasses, the moisture in the air condenses to form a fog, and as the temperature of the glasses increases, the fog disappears.

My solution is to puff on the glasses, artificially raise the temperature of the glasses, and then wipe them with a glasses cloth (you can do it without wiping, it is easy to get dirty), I hope it can help you.

Apply a little soap to the lenses and wipe it with a mirror cloth to keep it for a while, which can be used in the bathroom mirror when taking a shower and the mirror outside the car.

We can go to the pharmacy and buy some anti-fogging agent to rub on the glasses, so that the glasses will not fog up when entering the room in winter.

If you want to keep your glasses from fogging up indoors in winter, you need to take them off.