Why some glass can see the outside from the inside, but can t open the inside from the outside 5

It's a very thin vacuum coating on the back of the glass that's at work! Since the film is plated on the back! And the mirror side is facing outward! Hairy face in! So only reflect the light coming from outside!

When looking from the inside to the outside, the light refracted by the outside object is unobstructed, and when looking inside from the outside, the light refracted by the object inside is refracted away when it hits the frosted surface, so it is not clear to see, but if you pour some water on the sanded surface, it will be similar to normal glass. That's why frosted glass or frosted glass is a curious use.

That's frosted glass, when you look at it from the inside out, the light refracted by the outside object is unblocked, and when you look inside from the outside, the light refracted by the object inside hits the frosted surface and is refracted away, so it can't be seen clearly, but if you pour some water on the sanded surface, it's about the same as ordinary glass.

This is because the brightness inside is low, and it looks like a mirror from the outside, while the outside is bright, so you can still see the outside clearly from the inside, and if you don't believe it, you put the film glass on the car (the same principle) upside down, and the effect is the same.

This has nothing to do with whether it is sanded or not. It's okay to turn off the refraction.

This has nothing to do with the material.

It's not a total reflection either, it's just the best mirror.

Due to the phenomenon of total reflection of light.

Coated glass is coated with one or more layers of metal alloy to achieve the desired effect, such as from the outside can not see the inside, but from the inside can see the outside of this design. And he was able to take advantage of the poor brightness of the bedroom, the living room, the reflection on the glass and the strong reflection on the glass so that many people could not see it from the outside.

One-way see-through glass.

When in use, the reflective surface (mirror) must be facing light or facing the outdoor side. When the outside is brighter than the indoor, the one-way perspective glass is similar to an ordinary mirror, and the indoor scenery cannot be seen outdoors, but the outdoor scenery can be seen clearly. When the outdoor is darker than the indoor, the outdoor can see the indoor scene, and the indoor can also see the outdoor scene, and its clarity depends on the intensity of the outdoor illumination.

The glass that can see the outside from the inside and can't see the inside from the outside is called one-way perspective glass.

Unidirectional fluoroscopic glass, also known as atomic mirror, single-sided mirror, single-lens mirror, double-sided mirror, and unidirectional glass, is a kind of glass with a high reflectivity to visible light. Some glasses are pasted with a single transparent sticker, so the inside can see the outside, and the outside can't see the inside.

Glass classification: 1. Flat glass.

Flat glass is a traditional glass product, mainly used for doors and windows, playing the role of light transmission, wind blocking and hand insulation. It is required to be colorless, and have good transparency and smooth and flat surface, without defects.

2. Embossed glass.

Patterned glass, also known as patterned glass and knurled glass, is mainly used in doors and windows, indoor partitions, bathrooms and other places. The surface of the embossed glass has a pattern pattern, which can transmit light, but can block the line of sight, that is, it has the characteristics of light transmission and opacity, and has excellent decorative effect.

3. Insulating glass.

Insulating glass is composed of two or more layers of ordinary flat glass, which has good thermal insulation, heat insulation, sound insulation and other properties. It is mainly used for exterior glass decoration of heating, air conditioning and silencing facilities. Its optical properties, thermal conductivity and sound insulation coefficient should meet the national standards.

4. Tempered glass.

Tempered glass, also known as tempered glass, is a glass that is specially treated by a method that is heated to a certain temperature and then cooled quickly, or chemically processed. It is characterized by high strength, and its bending strength and impact resistance are 3 5 times higher than that of ordinary flat glass. The safety performance is good, there is an even internal stress, and it is a network crack after crushing.

Mainly used for doors, windows, partition walls and cabinet doors. Tempered glass is also resistant to acid and alkali. The general thickness is 2-5 mm.

The glass that cannot be seen from the outside is called one-way perspective glass, and it also has other names such as single-sided mirror, reverse glass, and one-way glass.

This kind of glass is usually installed and used in police stations, psychiatric hospitals, conference rooms, high people's courts, etc. When we install this kind of glass, we must pay attention to the side that can reflect the light to face the outside, so that the pedestrians outside can not see the indoor scene. However, it should be noted that if the light outside is not as dark as the inside, then people outside can see the scene inside.

Advantages of unidirectional glass

1. Extremely high reflectivity. Some of the special unidirectional glass can even exceed the reflectivity of the mirrors in the home, so you can see that the image reflected by it will be very clear.

2. Durable. The performance of one-way glass determines the place where it is used, and the place where it is located often needs to scrub the one-way glass, and sometimes someone scrapes it with a sharp object. Many one-way glasses on the market cannot withstand daily scrubbing, and even if you touch it by hand for a long time, the film layer on its surface will fall off, thus losing the effect of one-way glass.

Therefore, when purchasing one-way glass, we must choose one-way glass with a long warranty period, and it is best to choose a patented manufacturer to buy, because some large manufacturers have independently developed a new type of coating and process, which can make one-way glass durable.

This kind of glass is called coated glass, and the people in the room can see the people and objects outside because the reflection of the glass interior is low, but the people outside cannot see the people in the house because the reflection outside the glass is high. You can search to buy coated glass should be able to buy!

Unidirectional glass. In cognition, when light can pass through one side of the other, it must also reverse this process, and one-way glass vision breaks this cognition. In fact, in unidirectional glass, this common sense has not been broken, and light is still reversible, but the amount of light that can pass through is different.

By coating a layer of ultra-thin aluminum film on the glass, the single-sided light transmittance of the glass is greatly weakened, and in the actual installation, the monitoring room of one-way glass and the monitored room have different light intensities, so that one light and one dark are realized, so that the monitoring room is in the dark place, and the monitored room is in the bright place, and only the dark place can see the bright place, so as to realize the effect of one-way visibility.