When driving at night, I am most afraid of encountering L people who turn on high lights or install HID headlights indiscriminately (there are more and more in Hong Kong). When driving, they will be hit by "sun punches", which is very dangerous besides dazzling and uncomfortable. Thanks to technology, the current anti-glare technology is very mature, and the market is full of various rear-view mirror products. Before purchasing, you may wish to understand the principles of the most common anti-glare rear-view mirrors. It can be called an anti-glare rear mirror, as the name implies, it can reduce the strong glare reflected from the external environment to the driver's eyes and improve driving safety. The most basic anti-glare principle is to change the physical properties of the lens, such as changing the reflection direction of light, to avoid direct reflection of strong light to the driver's eyes; or to change the chemical properties of the lens, such as reducing the reflectivity of the lens to make the reflection in the mirror The strong light is dimmed, and even some of the most uncomfortable white light can be specifically blocked.

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