"An investment in knowledge pays the best interest." -Benjamin Franklin
Sunday, December 22, 2013
How do auto-dimming car mirrors work?
Auto-dimming mirrors take advantage of modern electrochromic technology. Electrochromic materials are those that change color when an electrical charge is supplied. Each mirror has electrochromic gel between two pieces of glass and is equipped with sensors that detect the intensity of glare from trailing cars' headlights. Based on the level of glare, an electrical charge is released from a battery source, causing the gel to darken and the glass to be effectively tinted. The darkening of the gel is commensurate with the intensity of glare detected, thus allowing the driver to see well through the rearview mirror.