LAMP DEVICE AND CONTROL METHOD THEREOF

A lamp device includes: an optical unit that is provided in a vehicle and irradiates light; a leveling unit configured to adjust an optical axis of the optical unit in a vertical direction; an object detection unit configured to detect an object around the vehicle to generate surrounding environment information; a driving condition determination unit configured to determine a driving condition of the vehicle; and a control unit configured to control the leveling unit, in which the control unit determines a projection surface of the optical unit based on the surrounding environment information and the driving condition and controls a projection distance of light by the leveling unit.