What is the function of the small round mirror on the side mirror?

Monitor blind spots outside the vehicle

There is a visual blind spot outside the car body that cannot be seen by the rearview mirror, because the mirror surface of the small round mirror is convex, and the visual range is of course wider than that of a flat rearview mirror, so this part of the blind spot problem is solved.

Visible rear wheels to prevent tire rubbing

The small round mirror can be rotated by sticking to the rearview mirror. Adjust it to the angle where you can see the rear wheels, and you will find that there is a lot of traffic when crossing narrow roads or parking on the side of the road (especially on the side). help.

What needs special attention is that the small round mirror will help the driver’s visual judgment, but it will also produce visual illusions! As mentioned above, because the small round mirror is convex, the image seen through it is distorted and the distance is distorted, and the small round mirror attached to the corner of the rearview mirror will more or less affect the driver’s sight .

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