Auto-Dimming Rearview Mirrors: How Do They Work?

At Genesis of Cleveland, we want you to be informed about the little things that come with your automobile. Like auto-dimming mirrors, for example; did you realize that there is quite a bit that goes into the dimming of headlights from behind you in order to save your vision? Here's how it works:

There is sensor inside your headlight-- either a photodiode-based photodetector or a camera-- that detects the light that is coming into the mirror. These sensors work with a microprocessor to detect the excessive light coming into the mirror, and accordingly, change the electronic charge that is going through an electrochemical gel.

This electrochemical gel that sits between the two layers of the rearview mirror is manipulated by electrochromism in order to undergo oxidation, which therefore reduces the amount of light that hits the driver's eyes.

Want to try out an auto-dimming rearview yourself? Take a test drive at Genesis of Cleveland.

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