Vehicle headlight

A vehicle headlight comprising:

• a lamp unit including a low beam lamp unit that emits light of a low beam, and a high beam lamp unit that emits light with a light distribution pattern of a high beam portion that forms a high beam, the high beam being formed by adding the light of the high beam portion to the low beam;
• and
• a control unit that receives road surface information output by a road surface state detection device that detects a state of a road surface, snowfall information output by a snowfall detection device that detects a state of presence or absence of snowfall, and another vehicle information output by another vehicle detection device that detects another vehicle, and controls the lamp unit, wherein
• in a case where the road surface is in a snow-accumulated state in which snow is compacted, the state of the presence or absence of snowfall is a non-snow-falling state, and the another vehicle is a preceding vehicle traveling in front of a host vehicle, the control unit brings the lamp unit into a first dimming state in which intensity of light in a lower center region that is a lower region of a center region of the high beam portion in a left-right direction and an upper center region that is an upper region of the center region is reduced.

A vehicle headlight comprising:

• a lamp unit including a low beam lamp unit that emits light of a low beam, and a high beam lamp unit that emits light of a high beam portion that forms a high beam, the high beam being formed by adding the light of the high beam portion to the low beam;
• and
• a control unit that receives road surface information output by a road surface state detection device that detects a state of a road surface, snowfall information output by a snowfall detection device that detects a state of presence or absence of snowfall, and another vehicle information output by another vehicle detection device that detects another vehicle, and controls the lamp unit, wherein
• in a case where the road surface is in a snow-accumulated state in which snow is compacted, the state of the presence or absence of snowfall is a non-snow-falling state, and the another vehicle is an oncoming vehicle, the control unit brings the lamp unit into a first dimming state in which intensity of light in a lower center region that is a lower region of a center region of the high beam portion in a left-right direction and an upper center region that is an upper region of the center region is reduced for a first predetermined period after the oncoming vehicle and a host vehicle have passed each other.