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