Operation CHARM: Car repair manuals for everyone.

Interior Mirror




Interior mirror

Automatic dimming interior mirror

The automatic dimming interior mirror darkens infinitely when the driver is "blinded" from behind.

It consists of a mirror element with two electronically controlled photo sensors.

The electronics recognize the light incidence from the front and the rear through the photo sensors.

If the light incidence is greater from the rear than from the front the electronics apply voltage to the conductive coating.

The applied voltage changes the color of the electrolyte. The greater the voltage the darker the electrolyte. Therefore the light incidence is reflected to a lesser degree.

When selecting the reverse gear or activating the switch in the interior mirror, the dimming function is switched off and one can use the mirror to back out of a dark garage.