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US 12,515,580 B2Granted
Vehicle headlight having a controller that moves the light distribution during temperature derating of a light source
AssigneeKoito Manufacturing Co., Ltd.
InventorsToshiyuki Tsuchiya, Shuji Matsuura
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Abstract
A vehicle headlight (1) includes a first light source unit (20), a second light source unit (40), and a controller (CO), in which the controller (CO) moves at least an upper edge of a low beam light distribution pattern (101) upward in a case of performing temperature derating on the second light source unit (40) based on a temperature of the second light source unit (40) in a state where a high beam light distribution pattern (105) is formed.
Claims6
A vehicle headlight comprising:
- a first light source unit that emits first light for forming a low beam light distribution pattern to a front of a vehicle;
- a second light source unit that emits second light for forming an additional light distribution pattern to be added to the low beam light distribution pattern to form a high beam light distribution pattern;
- and
- a controller,
- wherein the controller moves at least an upper edge of the low beam light distribution pattern upward in a case of performing temperature derating on the second light source unit based on a temperature of the second light source unit in a state where the high beam light distribution pattern is formed.
2 more elements
Dependencies are inferred from the claim text.