About this product
●The rearview mirror is used to observe the road conditions at the rear, side and bottom of the car. It not only expands the driver's field of vision, but also facilitates the driver to change lanes, stop, turn and reverse, effectively avoiding traffic accidents.
●The rearview mirror is divided into exterior rearview mirror, lower rearview mirror and interior rearview mirror according to the installation position. By purpose, the exterior rear-view mirror reflects the rear side of the car, the lower rear-view mirror reflects the lower front of the car, and the interior rear-view mirror reflects the rear and interior conditions of the car. The mirror structure will be different for different purposes.
●The exterior rearview mirror is a convex mirror with a spherical surface and different radii of curvature. Its image is smaller than the visual image, but its field of vision is larger, like the role of the camera's "wide-angle mirror".
●The structure and principle of the rear-view mirror has a problem of the horizon, that is, the range that the mirror can reflect. There are three elements of vision in the industry, that is, the distance between the driver's eyes and the rearview mirror; The size of the rearview mirror and the radius of curvature of the rearview mirror.
●There is a certain relationship between these three elements. When the distance and size of the rearview mirror are the same, the smaller the radius of curvature of the mirror surface, the larger the horizon reflected by the mirror surface. When the radius of curvature of the mirror is the same, the larger the size of the mirror, the larger the horizon reflected by the mirror.
●At the same time, the rearview mirror also has a reflectivity index. The higher the reflectivity, the clearer the image reflected by the mirror. The reflectivity is related to the reflective film material on the inner surface of the mirror.
