Vehicle headlamp
AssigneeKoito Manufacturing Co., Ltd.
InventorsMasahito Naganawa, Michio Tsukamoto
Life of this patent
Estimating the term…
Abstract
A vehicle headlamp is provided with an upper stage light source unit, a middle stage light source unit, and a lower stage light source unit. The upper stage light source unit, the middle stage light source unit, and the lower stage light source unit are provided at a lamp body constituting a lamp member by way of a support member. A low beam light distribution pattern is formed on a front side of a vehicle by overlapping light from the respective light source units. The lower stage light source unit includes two subunits, the two subunits commonly share a single cylindrical lens.
Claims4
A vehicle headlamp comprising:
- a plurality of light source units;
- and
- a lamp member for supporting the plurality of light source units, wherein a low beam light distribution pattern is formed on a front side of a vehicle by overlapping light from the respective light source units;
- wherein one of the plurality of the light source units includes:
- a lens having a focal line extending in a horizontal direction, the lens substantially extending along a direction of the focal line;
- and
- first and second subunits for irradiating light to the lens;
- the first subunit is a directly emitted type subunit including a first light emitting element for emitting light from a vicinity of the focal line of the lens in a direction of the lens and irradiating light to the front side by way of the lens;
- and
- the second subunit is a reflecting type subunit including a second light emitting element for emitting light and a reflector for reflecting light from the second light emitting element to a vicinity of the focal line of the lens and irradiating light to the front side by way of the lens.
Dependencies are inferred from the claim text.