An auto-dimming rearview mirror is an available safety feature on many different makes and models. As its name implies, this special rearview dims automatically, preventing you from encountering blinding glare on the road. What does an auto-dimming mirror consist of, and how does it work? Our Tony Betten & Sons Ford team serving Grand Rapids, MI has your quick, easy answer.
Anatomy of an Auto-Dimming Rearview Mirror
An auto-dimming mirror consists of glass mirror panes with an electrically conductive coating, light sensors, a special control, and electrochromic gel. 'Electrochromic' describes a material whose color or opacity changes when exposed to electricity. In most auto-dimming mirrors the electrochromic gel gets 'sandwiched' between the panes of glass.
How an Auto-Dimming Rearview Mirror Works
When the sensors on an auto-dimming mirror detect ambient light or glare, the mirror's controller sends an electrical current through the electrochromic gel. The gel darkens, reducing glare during your evening commute. The mirror returns to normal when the sensors no longer detect bright ambient light or glare.