Structural Design Of Automotive Rearview Mirror Systems

Apr 07, 2026 Leave a message

Taking a manual anti-glare interior rearview mirror as an example, its primary structure is illustrated in the figure; typical sub-components include the mirror frame, mirror element assembly, mirror housing, adjustment lever, spherical cover, mirror arm, and mounting base.

 

The interior rearview mirror is primarily positioned in the area of ​​the front windshield, providing the driver with a view of the area behind the vehicle. It is typically mounted by engaging the mirror's mounting base with a corresponding base attached to the windshield-using methods such as snap-ring connections or screw fastening.

 

Tip: For manual anti-glare interior rearview mirrors, the anti-glare function is activated by toggling the adjustment lever.

 

Field of View Compliance: Class II primary exterior mirrors must allow the driver to see a road width of ≥5000 mm at a distance of 30 m behind the eye point on both the driver and passenger sides, while also covering an area 4 m behind the eye point with a width of 1 m.


Aerodynamic Styling: The mirror housing and vehicle body form a diverging "V-shape" to reduce airflow impact; the connecting arm is kept as thin as possible to minimize turbulence; and a clearance of ≥40 mm is maintained between the housing and the base to reduce wind noise.


Positioning Requirements: The field of view must cover the target area under normal seating conditions; the mirror must be located within the side window's wiper sweep area; and the lateral protrusion must be ≤250 mm (when the lowest edge is ≤1800 mm from the ground at full load).


Safety Design: The exterior shape must avoid sharp protrusions to protect pedestrians and occupants during a collision, while also ensuring functional performance across various climatic conditions.