Vehicular headlamp
AssigneeKoito Manufacturing Co., Ltd.
InventorsIppei Yamamoto, Akinori Matsumoto
Life of this patent
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Abstract
Disclosed is a vehicular headlamp including: a basic lamp unit configured to form a main light distribution pattern that is controlled in light distribution so as to satisfy illuminance requirements at a plurality of predetermined sites in a low beam light distribution pattern which is projected on a vertical virtual screen positioned in front of a vehicle; and a plurality of additional lamp units controlled in light distribution so as to irradiate light to any one of left and right diffusion regions adjacent to the main light distribution pattern. The low beam light distribution pattern is formed on the vertical virtual screen by combining the basic lamp unit and the plurality of additional lamp units.
Claims8
A vehicular headlamp, comprising:
- a basic lamp unit configured to form a main light distribution pattern that is controlled in light distribution so as to satisfy illuminance requirements at a plurality of predetermined sites in a low beam light distribution pattern which is projected on a vertical virtual screen positioned in front of a vehicle;
- and
- a plurality of additional lamp units controlled in light distribution so as to irradiate light to any one of left and right diffusion regions adjacent to the main light distribution pattern,
- wherein the vehicular headlamp is formed to match a slanted shape of the vehicle's front portion by shifting the positions of the basic lamp unit and the plurality of the additional lamp units relative to the vehicular depth direction, and
- wherein the low beam light distribution pattern is formed on the vertical virtual screen by combining the basic lamp unit and the plurality of additional lamp units.
Dependencies are inferred from the claim text.