LIGHTING CONTROL DEVICE, VEHICULAR LAMP, AND LIGHTING CONTROL METHOD

There are provided a lighting control device, a vehicular lamp, and a lighting control method which can prevent visibility in front of a driver of a vehicle from decreasing. The lighting control device controls a light distribution state by a vehicular headlamp, and includes: an obstacle detection part that detects an obstacle from an image in front of a subject vehicle taken by a camera; a light-shielding area deriving part that derives a first light-shielding area of a left headlamp attached to a front left side of the vehicle, and a second light-shielding area of a right headlamp attached to a front right side of the vehicle according to a position of the obstacle when the obstacle detection part detects the obstacle; and a light distribution control part that controls a light distribution state of the right headlamp and a light distribution state of the left headlamp according to the first light-shielding area and the second light-shielding area derived by the light-shielding area deriving part. The first light-shielding area and the second light-shielding area are different from each other.