Vehicle headlamp having extended illumination on both sides of a horizontal cut-line
AssigneeKoito Manufacturing Co., Ltd.
InventorsKenichi Takada, Naoki Uchida, Hiroyuki Ishida
Life of this patent
Estimating the term…
Abstract
A vehicular headlamp includes a light source, a reflector for radiating light emitted from the light source forwards, and a cover lens for covering an area in front of the reflector and the light source, wherein the light distribution pattern of the low beam emitted by the vehicular headlamp has a horizontal cut line at least on the side of the opposite lane and wherein a long-distance visibility enchancing portion extending above the horizontal cut line of the light distribution pattern is formed at an end portion of the horizontal cut line.
Claims6
A vehicular headlamp comprising:
- a light source, a stepped reflector having a reflecting surface divided into small reflecting sections, each of which distributes light emitted from said light source to a predetermined direction so as to contribute a predetermined light distribution pattern having a horizontal cut line, some of said reflecting sections of said stepped reflector providing long-distance visibility enhancing portions of said light distribution pattern extending above said horizontal cut line of said light distribution pattern and formed at end portions of said horizontal cut line.
A vehicular headlamp comprising:
- a light source, a reflector for radiating light emitted from said light source forwards, a cover lens for covering an area in front of said reflector and said light source, wherein a light distribution pattern of a low beam emitted by said vehicular headlamp has a horizontal cut line at least on the side of an opposite lane, and a control portion formed in said cover lens for directing some light reflected by said reflector onto said cover lens to form long-distance visibility enhancing portions in said light distribution pattern extending above said horizontal cut line of said light distribution pattern and at end portions of said horizontal cut line.
A vehicular headlamp comprising:
- a light source, a reflector for radiating light emitted from said light source forwards, a cover lens for covering an area in front of said reflector and said light source, wherein a light distribution pattern of a low beam emitted by said vehicular headlamp has a horizontal cut line at least on the side of an opposite lane, and means for providing long-distance visibility enhancing portions in said light distribution pattern extending above said horizontal cut line of said light distribution pattern and formed at end portions of said horizontal cut line.
A vehicular headlamp comprising:
- a light source, a reflector for reflecting and condensing light emitted from said light source, a projection lens for projecting the light reflected by said reflector forwards, and a shade disposed forward of said light source and having an upper edge defining a horizontal cut line, wherein a light distribution pattern of a low beam emitted by said vehicular headlamp has a horizontal cut line at least on the side of an opposite lane, said shade comprising downward-extending portions extending further downwards than other portions formed in right and left end portions of said upper edge of the shade, long-distance visibility enhancing portions of said light distribution pattern being formed in accordance with said downward-extending portions of the shade.
Dependencies are inferred from the claim text.