发明授权
US6004014A Vehicle headlamp with steps in periphery with parabolic edges with
different focal lengths
失效
车辆前照灯,周边有台阶,抛物线边缘具有不同的焦距
- 专利标题: Vehicle headlamp with steps in periphery with parabolic edges with different focal lengths
- 专利标题(中): 车辆前照灯,周边有台阶,抛物线边缘具有不同的焦距
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申请号: US895990申请日: 1997-07-17
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公开(公告)号: US6004014A公开(公告)日: 1999-12-21
- 发明人: Satoshi Yamamura , Naoki Uchida
- 申请人: Satoshi Yamamura , Naoki Uchida
- 申请人地址: JPX Tokyo
- 专利权人: Koito Manufacturing Co., Ltd.
- 当前专利权人: Koito Manufacturing Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX8-207968 19960718
- 主分类号: F21S8/10
- IPC分类号: F21S8/10 ; F21V7/00 ; F21V7/09 ; F21V11/16 ; F21W101/10 ; F21Y101/00
摘要:
A vehicle headlamp comprises: a discharge bulb; and a reflector having a reflecting surface including a plurality of reflecting surface elements to reflect the output light of the discharge bulb forwardly, wherein an sub light distribution pattern having an oblique cut line and a horizontal cut light is formed by controlling light reflected from the reflecting surface elements. Of the plurality of reflecting surface elements, oblique cut line forming reflecting surface elements, and horizontal cut line forming reflecting surface elements extend above the lines of intersection between the reflecting surface and an inclined surface which passes through the optical axis of the reflector and has an angle of elevation of 15.degree..
公开/授权文献
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