发明名称 |
Vehicular headlamp |
摘要 |
A vehicular headlamp has a projection lens, a light source disposed behind a rear focal point of the projection lens, and a reflector that reflects light from the light source forward. The vehicular headlamp forms a forward light distribution pattern. The vehicular headlamp includes a plate-like shade having a front-end portion positioned in the vicinity of the rear focal point of the projection lens to form a cut-off line of the forward light distribution pattern. The shade extends rearward and obliquely downward from the front-end portion. An overhead sign reflective surface is provided on a lower surface of the shade. The overhead sign reflective surface reflects light from the reflector toward the projection lens to form a part of an overhead sign distribution pattern. A dark portion forming portion is formed on the overhead sign reflective surface. |
申请公布号 |
US9028118(B2) |
申请公布日期 |
2015.05.12 |
申请号 |
US201313954264 |
申请日期 |
2013.07.30 |
申请人 |
Koito Manufacturing Co., Ltd. |
发明人 |
Tajima Takehiko;Matsumoto Akinori |
分类号 |
F21S8/10 |
主分类号 |
F21S8/10 |
代理机构 |
Osha Liang LLP |
代理人 |
Osha Liang LLP |
主权项 |
1. A vehicular headlamp comprising:
a projection lens; a light source disposed behind a rear focal point of the projection lens; and a reflector that reflects light from the light source forward, wherein the vehicular headlamp forms a forward light distribution pattern, wherein the vehicular headlamp includes a plate-like shade having a front-end portion positioned in the vicinity of the rear focal point of the projection lens to form a cut-off line of the forward light distribution pattern, wherein the shade extends rearward and obliquely downward from the front-end portion, wherein an overhead sign reflective surface is provided on a lower surface of the shade, wherein the overhead sign reflective surface reflects light from the reflector toward the projection lens to form a part of an overhead sign distribution pattern, wherein a dark portion forming portion is formed on the overhead sign reflective surface, and wherein the dark portion forming portion forms a first portion of the overhead sign distribution pattern corresponding to an eye point of a driver of an oncoming vehicle to be darker than a second portion around the eye point. |
地址 |
Tokyo JP |