The Technology Behind Auto-Dimming Rearview Mirrors
Auto-dimming rearview mirrors became popular in the 1980s. Today, it's a feature that many drivers are looking for. While they may seem simple, these innovative mirrors have a lot of technology behind them. We here at Barnes Crossing Kia want you to be an informed vehicle owner, so here's some information about these must-have auto accessories.
The unique component of auto-dimming mirrors is the electrochromic gel. The gel is located between two panes of glass. The fluid responds to an electric charge by darkening. To initiate that process, the mirror uses sensors or cameras. They're built into the mirror and constantly monitor lighting conditions.
When bright lights from the vehicle behind you are detected, the sensors will send a signal to a microprocessor within the mirror housing. The appropriate charge is then sent to the gel. The complex process works fast to prevent any potential vision problems that may be caused by excessive glare.
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Source: Barnes Crossing Kia Blog