Electro-chromatic mirrors system:
Electro chromatic mirrors / Auto dimming mirrors use a
combination of opto electronic sensors and complex electronics
(sensors, circuit boards, micro-controllers, etc.) that constantly
monitor ambient light and the intensity of light shining directly on the
mirror. As soon as sensors detect glare, the electro chromatic surface
of the mirror becomes darker to protect driver’s eyes and their
concentration.
The electro chromatic technology usually is applied
to the inside rearview mirror / Side view mirror, where it basically
saves you the trouble of flipping the mirror manually if blinded by the
light which increases driving safety.
Working operation of Electro chromatic mirrors:
This auto dimming rearview mirror is installed on
higher end vehicles. It consists of two lenses that sandwich an electro
chromic (electronic color changing) gel. The inside sides of the lenses
are coated with a transparent conductive layer coating and the deepest
lens has a reflective coating.
This gel, when charged with electricity darkens, then
clear once the glare is no longer detected. The mirror uses a forward
sensor which measures the outside ambient light, and a rearward sensor
to look for glare. When dark enough, it sends current to the
electrostatic gel, darkening it a rate which is related to the level of
ambient darkness and rearward glare. When the outside ambient light
increases, the current decreases, until the gel is clear again at
daylight light levels.
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