The Technology Behind Auto-Dimming Rearview Mirrors

Our associates at Ken Pollock Lincoln want Berwick drivers to be informed vehicle owners. One fascinating feature of your vehicle that you may not think much about is an auto-dimming rearview mirror. Auto-dimming rearview mirrors became popular in the 1980s and are typically standard features in vehicles today.

The Troxler Effect is a phenomenon that happens when a trailing vehicle's headlights cause glare in a rearview mirror and hinder a driver's reaction time by up to 1.4 seconds. Auto-dimming rearview mirrors reduce glare with a process known as electrochromism.

Usually, auto-dimming mirrors have two sensors, which are cameras or semiconductors. These sensors and a microprocessor detect for glare from a trailing car's headlights and send a charge to an electrochromic gel that's found between the two layers of glass that make up the mirror. When the gel receives the appropriate charge, it will darken and reduce the amount of light that's reflected onto the driver's face.

 

 

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