Anti Glare mirror

[davidprout]

How does the anti glare mirror in a car work. It appears to tilt the mirror to look higher but this does not seem logical

[moonacre]

Yes that's what it is doing but the mirror isn't just a plain standard mirror. The mirror is not ground flat -- the front glass surface is at an angle to the back mirrored surface. So if you looked at this mirror out of its casing, it would be wedge-shaped with the thicker edge at the top. When you "flip" the mirror, the back mirrored surface actually points toward the roof lining, so you don't see that image. What you see instead is the image reflecting off the front of the glass, and this is much dimmer that the pure reflected image so it does not hurt your eyes.

[Farrukh]

Some newer cars - like the Merceedes, BMW, Mondeo, Passat etc, have electronic auto dimming mirrors. These work by having a very thin LCD on the front of the glass, as the sensors pick up bright lights, the LCD darkens, reducing the reflection