Traditional Culture Encyclopedia - Photography and portraiture - What is the principle of train deceleration glass?

What is the principle of train deceleration glass?

The principle of deceleration glass is as follows:

Deceleration glass is actually a kind of laminated glass, which consists of two layers of tempered glass with a PVB film in the middle. When this kind of glass is damaged by external force, the glass fragments still stick to the film and will not fly out to cause secondary damage to the passengers on the bus. High-quality deceleration glass has good optical properties, good transmittance and no optical distortion. , and can truly reflect the shape and running state of the external scenery, and the vision is very clear. Just like there is no visual effect of glass, it is generally used on glass awnings, not as good as insulating glass, which has the effect of softening light and making people feel more comfortable. In fact, the correct name of glass used in vehicles (including cars, trains, planes, etc.). ) is safety glass.