Automotive rearview mirrors can be classified into various types based on their installation positions and functional characteristics, primarily including exterior rearview mirrors, interior rearview mirrors, and undercarriage mirrors. Exterior rearview mirrors are mounted on both sides of the vehicle and feature convex mirror designs to widen the field of vision, enabling better observation of side and rear road conditions-ideal for lane changes and turns-though with some image distortion. The interior rearview mirror is positioned at the centre of the front windshield, typically employing a flat mirror that provides accurate, distortion-free images for monitoring rear vehicles and the backseat area. Undercarriage mirrors assist in viewing road conditions beneath the front bumper to prevent scrapes during parking or in tight spaces. Additionally, electronic rearview mirrors utilize cameras and displays instead of conventional reflective surfaces, offering superior performance in adverse weather like rain or snow, albeit at higher costs and with dependence on electronic systems. Other specialized variants include wide-angle mirrors to minimize blind spots and anti-glare designs for enhanced nighttime driving safety. Proper selection and adjustment of rearview mirrors are vital for driving safety. For instance, exterior mirrors should be adjusted so the vehicle body occupies 1/4 of the mirror surface and the road accounts for 2/3 to optimize visibility.
