A rearview mirror system comprises a spotter mirror for providing an image of
an
object in a vehicle's blind zone to the vehicle's operator. A recognition enhancement
device is provided with the spotter mirror for drawing the attention of the driver
to the spotter mirror when an overtaking vehicle enters the driver's blind zone.
The signaling display is activated by a sensing system which senses the presence
of the overtaking vehicle in the blind zone. An electrochromic element is incorporated
into the spotter mirror to reduce the intensity of light transmitted from the object
and reflected from the spotter mirror. Activation of the electrochromic element
to darken the spotter mirror will induce the operator to observe the object in
the spotter mirror.
