Abstract: A vehicle headlight can form a variable light distribution pattern with a simple structure including a favorable fail-safe. The headlight can include a movable mirror facing a light source unit, a static mirror between the movable mirror and the light source unit and a controller to emit light from the light source unit and to scan the light toward the static mirror using the movable mirror having a default position, where receives the light at a position substantially perpendicular thereto. The controller can enable the headlight to provide various light distribution patterns by varying a scanning method and the movable mirror is configured to return the light toward the light source unit even if it fails to operate properly. Thus, the disclosed subject matter can provide a vehicle headlight that can form various light distribution patterns in accordance with surroundings and can have the simple structure including the favorable fail-safe.