Vehicle lamp system, light distribution controlling device, and light distribution controlling method

A light distribution controlling device that controls formation of light distribution patterns by a first light distribution variable lamp and a second light distribution variable lamp, the first light distribution variable lamp forming, in a region ahead of a vehicle, a first light distribution pattern having a first hot zone, the second light distribution variable lamp forming a second light distribution pattern outside the first light distribution pattern in a width direction of the vehicle, the light distribution controlling device configured to:

• control the first light distribution variable lamp and the second light distribution variable lamp so as to swivel the first hot zone within the first light distribution pattern and to form the second light distribution pattern outside the first light distribution pattern where the first hot zone swivels to, wherein
• the second light distribution pattern is configured to be swiveled in a range between an outer left side and an outer right side of the first light distribution pattern, and
• the light distribution controlling device controls the second light distribution variable lamp so as to swivel the second light distribution pattern in tandem with the swiveling of the first hot zone.

A light distribution controlling method of controlling formation of light distribution patterns by a first light distribution variable lamp and a second light distribution variable lamp, the first light distribution variable lamp forming, in a region ahead of a vehicle, a first light distribution pattern having a first hot zone, the second light distribution variable lamp forming a second light distribution pattern outside the first light distribution pattern in a width direction of the vehicle, the light distribution controlling method comprising:

• controlling the first light distribution variable lamp and the second light distribution variable lamp so as to swivel the first hot zone within the first light distribution pattern and to form the second light distribution pattern outside the first light distribution pattern where the first hot zone swivels to, wherein
• the second light distribution pattern is configured to be swiveled in a range between an outer left side and an outer right side of the first light distribution pattern, and
• the light distribution controlling method controls the second light distribution variable lamp so as to swivel the second light distribution pattern in tandem with the swiveling of the first hot zone.