1:What is it used for?
It effectively reduces visual blur or momentary blindness caused by the intense glare of the rear vehicle's headlights during nighttime driving, ensuring driving safety.
2:Misconceptions:
Not all anti-glare mirrors are automatic. Manual anti-glare mirrors require activation through a switch.
The term "anti-glare rearview mirror" specifically refers to the interior rearview mirror.
3:Principle:
Manual Anti-Glare Mirror:
The manual anti-glare mirror uses glass with a thicker upper portion and a thinner lower portion (or a combination of a flat mirror and transparent glass at a certain angle). When light enters, it produces two reflected beams: one is the mirror reflection, and the other is a weak reflection from the glass surface. Due to the angle between the glass surface and the mirror, these two reflected beams exit the mirror at different angles. By adjusting the rearview mirror control lever towards the driver, it can be set to the anti-glare mode for nighttime driving.
Automatic Anti-Glare Mirror:
The automatic anti-glare mirror consists of a special mirror, two photosensitive diodes, and an electronic controller. It has a continuously changing anti-glare function. When strong light shines on the rearview mirror, the sensors on the mirror transmit the light signals to a microcomputer. After signal processing, the control circuit adjusts the mirror to darken, absorbing the reflection of the intense light from the rear vehicle.
