Why are double mirrors unsafe?

Because of its dangerous nature, double mirrors will be used by criminals to peep. There are many examples of people installing two-way mirrors in women's dressing rooms.

Double mirror This kind of glass can reflect most of the projected light back. This kind of glass is installed in the car, so people can see the outside clearly when sitting in the car, but people outside the car can't see everything inside. Widely used in prisons, interrogation rooms of public security organs, psychiatric hospitals, research rooms of scientific research institutions in universities, large conference rooms, etc.

Discrimination method of double mirrors

1. Put your finger on the mirror. If there is a distance between your fingertips and the image in the mirror, it is a one-sided mirror. If there is no distance between the fingertip and the image in the mirror, it is a double mirror. The coating of the monocular mirror is behind the glass, and the light is reflected on the coating. Because there is a layer of glass between the coating and the finger, there is a distance between the image in the mirror and the nail. The coating of the double mirror is in front of the glass, so there is no distance between the nail and the imaging.

2. The thickness and material of double-sided mirror and single-sided mirror are the same. But in general, the back of a double-sided mirror is empty, while most of the single-sided mirrors are mounted on the wall, and there is a wall on the back. Theoretically, the knocking method can be distinguished, just as the knocking method is used to check the hollowness of the wall when the new house is handed over.

3. The double mirrors can still transmit light to each other, but if the light on the voyeur's side is very dark and there is less light that can pass through the double mirrors, you can't see the scene behind the mirror. Under special circumstances, the scene behind the mirror is very bright, and the other side of the mirror is just very dark. If you look closely, you can still see each other's scene. In other words, this method is suitable for the other party to peep with the light on, otherwise it is not an effective method.

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