Bright lights can be distracting at night, making it harder to see where you're going in Saint Louis. Fortunately, there are features that deal with this problem. Some of the models at MINI of St. Louis come equipped with auto-dimming rearview mirrors that dim when bright lights are shining on them. What allows this to happen?
These mirrors have important components embedded in them. In between their two layers of glass, there's electrochromic gel. This gel can change color depending on the conditions. Auto-dimming rearview mirrors also have sensors that detect the presence of bright lights at night. When bright lights shine on the sensors, they send out an electric charge.
The electric charge causes a chemical reaction in the electrochromic gel. As the result of this reaction, the gel darkens, and this makes a mirror appear dimmer. Subsequently, bright headlights from vehicles behind you can't reflect as well off of the mirror and into your eyes.