[China Glass Net] Two-way mirror, also known as single-sided see-through glass----made on the ordinary glass by vacuum coating with a layer of metal chromium, aluminum or tantalum film. This glass reflects most of the projected light back. This kind of glass is installed in the car. People sitting in the car can clearly see the outside, but people outside the car can't see everything inside the car. The two-way mirror is different from the ordinary mirror. The two-way mirror will still be transparent after all, so you can use the light method to judge:
Illuminate one side of the mirror, if it is visible on the other side, it is a two-way mirror, and vice versa. For example, in life, you can put your eyes on the mirror and use your hands to keep your eyes around to reduce the illumination of the viewing surface, and to create a darker environment than the other side. If you can see the other side through the mirror, it is a two-way mirror. I can't see or can only see my own image as a normal mirror.
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