Communication lighting system for vehicle

A communication lighting system for a vehicle, the communication lighting system comprising:

• a lighting unit including a plurality of light sources disposed in sequence to divide a light irradiation area into a plurality of areas and to project light to each of the plurality of areas with different brightness;
• a sensor configured to detect at least an object in a detection area around the vehicle to detect a position of the object to provide information on the position of the object;
• and
• a controller electrically-connected to the lighting unit and the sensor and configured to control the lighting unit, to receive the information from the sensor, to set a priority of an object entering the detection area among the at least one object, and to selectively control a brightness of light to be projected to the object with different brightness by selectively controlling each of the plurality of light sources of the lighting unit according to the priority of the object moving in the detection area;
• wherein, when a plurality of objects enter the detection area among the at least one object, the controller sequentially sets each of the plurality of objects as a detection object, and
• wherein the controller is configured to control the lighting unit to perform brightness control of light for a first detection object among the plurality of objects, perform the brightness control of light for a second detection object entering the detection area among the plurality of objects after the first detection object leaves the detection area, and then perform the brightness control of light for a third detection object entering the detection area among the plurality of objects after the second detection object leaves the detection area, whereby the brightness control of light is sequentially performed.