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US 8,523,414 B2Granted
Vehicle headlamp
AssigneeKoito Manufacturing Co., Ltd.
InventorNaoki Uchida
Life of this patent
Estimating the term…
Abstract
A vehicle headlamp includes a light source and a reflector. A light emitting surface of the light source includes a linear side. The light source is disposed so that the linear side of the light emitting surface is oblique with respect to an optical axis.
Claims4
A vehicle headlamp comprising:
- a light source having a light emitting surface, the light emitting surface including at least a linear side;
- and
- a reflector adapted to reflect light emitted by the light source to form a light distribution pattern having a first cut-off line and a second cut-off line,
- wherein the first cut-off line and the second cut-off line intersect each other with an angle,
- wherein the vehicle headlamp comprises an optical axis and a transverse direction of a vehicle, which is perpendicular to the optical axis,
- wherein the reflector comprises a left region disposed on a left side in the transverse direction, and a right region disposed on a right side in the transverse direction,
- wherein areas of the right region and the left region are different from each other,
- wherein the reflector further comprises a plurality of first reflecting portions configured to form the first cut-off line by images of said linear side of the light emitting surface reflected on the first reflecting portions and a plurality of second reflecting portions configured to form the second cut-off line by images of said linear side of the light emitting surface reflected on the second reflecting portions,
- wherein the light source is disposed so that said linear side of the light emitting surface is oblique with respect to the optical axis and both of the first reflecting portions and the second reflecting portions are positioned in one of the right region and the left region having a larger area.
6 more elements
A vehicle headlamp comprising:
- a light source having a light emitting surface, the light emitting surface including at least a linear side;
- and
- a reflector adapted to reflect light emitted by the light source to form a light distribution pattern having a first cut-off line and a second cut-off line,
- wherein the first cut-off line and the second cut-off line intersect each other with an angle,
- wherein, the reflector comprises an upper region disposed on an upper side, and a lower region disposed on a lower side with respect to an optical axis,
- wherein areas of the upper region and the lower region are different from each other,
- wherein the reflector further comprises a plurality of first reflecting portions configured to form the first cut-off line by images of said linear side of the light emitting surface reflected on the first reflecting portions and a plurality of second reflecting portions configured to form the second cut-off line by images of said linear side of the light emitting surface reflected on the second reflecting portions,
- wherein the light source is disposed so that said linear side of the light emitting surface is oblique with respect to the optical axis and both of the first reflecting portions and the second reflecting portions are positioned in one of the upper region and the lower region having a larger area.
5 more elements
Dependencies are inferred from the claim text.