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

Vehicle headlamp with steps in periphery with parabolic edges with
different focal lengths
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..
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