Reflectivity indicators for automotive rearview mirrors

The rearview mirror has a reflectivity indicator. The greater the reflectivity, the clearer the image on the card surface. The magnitude of the albedo is related to the reflective film data on the inner surface of the mirror. The reflective film of the car rearview mirror is normally made of silver and aluminum, and their minimum albedo is 80%. High albedo will have a counter-effect in some places, similar to driving at night under the illumination of the headlights of the bus in front, the reflection of the inner rearview mirror will make the driver dazzle and affect driving safety.

Therefore, the inner rearview mirror normally adopts a prismal mirror, although the card surface is also flat, but its cross-sectional shape is prismatic, and it applies the characteristics that the surface albedo of the prism mirror is different from the external reflectivity, so as to achieve the requirement of no dazzling. During the day, a silver or aluminum exterior reflector with an albedo of 80% is used, and at night, an exterior glass with an albedo of only 4% is used. For this reason, it is enough to turn the position of the daytime position of the inner rearview mirror slightly at night. There is an active face-changing inner rearview mirror in front of the eyes, and its electronic photosensitive detector can actively distinguish between external artificiality light and applied light source, and after direct current change, the face change data in the mirror can be adjusted in a few seconds, from colorless to colored to adjust the albedo of the inner rearview mirror, so as to deal with the problem of dazzling.