| 摘要 |
The invention relates to a vehicle headlight of the type including a light source, an elliptical reflector with two foci one of which is near the light source and the other of which is in front of this source, and a parabolic reflector whose focus is near the front focus of the elliptical reflector. The elliptical reflector 10 is a semi-ellipsoid. The parabolic reflector 20 is a semi-paraboloid whose axis 22 is parallel to the longitudinal axis of the vehicle. The eccenticity of the elliptical reflector being e, the parameter of the parabolic reflector being P, the height of the parabolic sector between the two horizontal section planes being equal to H, the three parameters being related at least approximately by the relationship: <IMAGE> <IMAGE>
|
