Are Rearview Mirrors Concave or Convex Mirrors?

[McAmara]

Rearview mirrors are convex mirrors. This type of mirror has a spherical surface with varying radii of curvature, producing an image that appears smaller than actual size but with a wider field of view, similar to the effect of a camera's "wide-angle lens." Hence, they are also referred to as wide-angle mirrors. Such mirrors are typically used for exterior rearview mirrors and lower rearview mirrors. Located on both sides of the car's front and inside the vehicle, rearview mirrors display conditions behind, beside, and below the car, allowing drivers to indirectly observe these areas. They function as a "second pair of eyes," expanding the driver's field of vision. As crucial safety components, the mirror surface, shape, and operation of rearview mirrors are meticulously designed.