A control device may include a sensing unit configured to sense a topographical state of a road surface on which a vehicle is travelling. The control device may also include at least one processor configured to, based on the topographical state of the road surface being a first topographical state, control a head lamp of the vehicle to be in a first output state that outputs light to a first area ahead of the vehicle. The at least one processor may also be configured to, based on the topographical state of the road surface changing to a second topographical state different from the first topographical state, control the head lamp of the vehicle to change to a second output state that maintains the output of the light to the first area ahead of the vehicle.

Provided is an apparatus for controlling light distribution using steering information, the apparatus including a steering information detector configured to detect an amount of change of steering information sensed through a steering sensor that senses the steering information, a determiner configured to determine whether the amount of change of the steering information detected through the steering information detector is greater than or equal to a predetermined critical value and determine a direction in which the steering information is changed, and a controller configured to increase or decrease a margin of a shadow zone of a headlamp according to the amount of change of the steering information when the amount of change of the steering information is determined by the determiner to be greater than or equal to the predetermined critical value.

A control device may include a sensing unit configured to sense a topographical state of a road surface on which a vehicle is travelling. The control device may also include at least one processor configured to, based on the topographical state of the road surface being a first topographical state, control a head lamp of the vehicle to be in a first output state that outputs light to a first area ahead of the vehicle. The at least one processor may also be configured to, based on the topographical state of the road surface changing to a second topographical state different from the first topographical state, control the head lamp of the vehicle to change to a second output state that maintains the output of the light to the first area ahead of the vehicle.

Provided is an apparatus for controlling light distribution using steering information, the apparatus including a steering information detector configured to detect an amount of change of steering information sensed through a steering sensor that senses the steering information, a determiner configured to determine whether the amount of change of the steering information detected through the steering information detector is greater than or equal to a predetermined critical value and determine a direction in which the steering information is changed, and a controller configured to increase or decrease a margin of a shadow zone of a headlamp according to the amount of change of the steering information when the amount of change of the steering information is determined by the determiner to be greater than or equal to the predetermined critical value.

Provided is a vehicle lamp unit which includes an optical system configured to form a light distribution pattern ahead of a vehicle; and a rotary light shielding member configured to block at least a part of light of a light source. The rotary light shielding member includes a spiral light shielding portion formed to change a blocked quantity of light of the light source as the rotary light shielding member rotates around a rotating axis. The light shielding portion is configured to form a plurality of light distribution patterns such that a position of a cutoff line extending in a direction crossing a horizontal direction changes in the horizontal direction. Further, the light shielding portion is configured such that a change of a position of an edge portion projected as a cutoff line becomes nonlinear in relation to a change of a rotational position of the rotary light shielding member.