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US 2016/0102831 A1Published application
Vehicle headlamp
AssigneeIchikoh Industries, Ltd.
InventorsYasuhiro OKUBO, Toshiya ABE, Kotoka INOUE
Life of this patent
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Abstract
In vehicle headlamps of the prior art, a low-beam light distribution pattern and a high-beam distribution pattern could not be obtained in a direct illumination lens-type lamp unit. The present invention is provided with a semiconductor light source, a lens, a light control member, and a drive member. The lens is composed of a main lens section and an auxiliary lens section. The drive member positions the light control member in a first position and a second position in a moveable and switchable manner. Consequently, the present invention enables a low-beam light distribution pattern and a high-beam light distribution pattern to be obtained in a direct illumination lens-type lamp unit.
Claims19
A vehicle headlamp comprising:
- a semiconductor light source;
- a lens to emit light from the semiconductor light source toward a forward direction of a vehicle, as a respective one of a first light distribution pattern and a second light distribution pattern;
- a light control member;
- and
- a drive member to position the light control member to be switchable in movement between a first location and a second location,
- wherein the lens is composed of a main lens section and an auxiliary lens section, and
- wherein, when the light control member is positioned in the first location that is a location between the semiconductor light source and the auxiliary lens section, the lens emits the first light distribution pattern toward the forward direction of the vehicle, and
- when the light control member is positioned between the second location that is a location between the semiconductor light source and the main lens section, the lens emits the second light distribution pattern toward the forward direction of the vehicle, respectively.
5 more elements
A vehicle headlamp comprising:
- a semiconductor light source;
- a lens to emit light from the semiconductor light source toward a forward direction of a vehicle, as a respective one of a first light distribution pattern and a second light distribution pattern;
- a light control member;
- and
- a drive member to position the light control member to be switchable in movement between a first location and a second location,
- wherein the lens is composed of a main lens section and an auxiliary lens section,
- wherein, when the light control member is positioned in the first location that is a location between the semiconductor light source and the auxiliary lens section, the lens emits the first light distribution pattern toward the forward direction of the vehicle, and
- when the light control member is positioned between the second location that is a location between the semiconductor light source and the main lens section, the lens emits the second light distribution pattern toward the forward direction of the vehicle, respectively, and
- wherein, when the light control member is positioned in the first location, a portion which is positioned at the main lens section's side, of the light control member, displaces a focal point of the main lens section to a lower side.
6 more elements
A vehicle headlamp comprising:
- a semiconductor light source;
- a lens to emit light from the semiconductor light source toward a forward direction of a vehicle, as a respective one of a first light distribution pattern and a second light distribution pattern;
- a light control member;
- and
- a drive member to position the light control member to be switchable in movement between a first location and a second location,
- wherein, when the light control member is positioned in the first location that is a location between the semiconductor light source and the auxiliary lens section, the lens emits the first light distribution pattern toward the forward direction of the vehicle, and
- when the light control member is positioned in the second location that is a location between the semiconductor light source and the main lens section, the lens emits the second light distribution pattern to the forward direction of the vehicle, respectively,
- wherein a focal point of an upper portion of the light control member is displaced to an upper side or a lower side with respect to a focal point of another portion, and
- wherein a focal point of a lower portion of the light control member is displaced to a lower side or an upper side with respect to the focal point of another portion.
6 more elements
A vehicle headlamp comprising:
- a semiconductor light source;
- a lens to emit light from the semiconductor light source toward a forward direction of a vehicle, as a respective one of a first light distribution pattern and a second light distribution pattern;
- a light control member;
- and
- a drive member to position the light control member to be switchable in movement between a first location and a second location,
- wherein, when the light control member is positioned in the first location that is a location between the semiconductor light source and the auxiliary lens section, the lens emits the first light distribution pattern toward the forward direction of the vehicle, and
- when the light control member is positioned in the second location that is a location between the semiconductor light source and the main lens section, the lens emits the second light distribution pattern to the forward direction of the vehicle, respectively, and
- wherein the light control member is composed of a light transmission member, and comprises a variable focal point lens and a mounting section.
5 more elements
Dependencies are inferred from the claim text.